Knowledge (XXG)

Dorfopterus

Source 📝

1410: 497: 113: 721: 143: 3024: 751: 468:(the posteriormost division of its body). The telson on this specimen is uncrushed, although its base and distal part (its end) are not preserved. The preserved fragment is 12.6 cm (5.0 in) long, the complete telson potentially having had a length of 18 cm (7.1 in). It had its greatest width, 1.3 cm (0.51 in), on the base, while in the middle, the telson was 1.1 cm (0.43 in) wide. 3327: 504: 941:, then unknown in the latter except for a juvenile specimen in which it was poorly and fragmentarily preserved. These two eurypterids were found in the same locality, the Beartooth Butte Formation. He had already suggested this back in 2004, in his unpublished thesis. To determine whether this was the case or not, he studied the only known specimen of 880:. This family differed from the others by a series of morphological characteristics that included a carinated (or "crested", as he defined it) telson and a granulate (with granules), pustular (with pustules) or squamate (with scales) ornamentation. Waterston compared the rib-like ornamentation and carina ("keel") of 594:
consists of a dorsal uncrushed impression of most of a telson with a peculiar ornamentation. It was loaned by the American Princeton University paleontology professor Benjamin Franklin Howell to the American paleontologist Erik Norman Kjellesvig-Waering, who found this fossil unique enough as to have
475:
was long and very narrow, with a spike-like shape, styliform and slightly carinated (with a not very pronounced "keel", ridge). This keel spread over the entire length of the central part of the telson. The telson was thicker at the carinated part, becoming less thick at its lateral margins (its
484:
of the telson was highly distinctive, forming a series of raised and backwardly curved rib-like lines evenly spaced from one another on each lateral margin of the telson. As the lines got closer to its distal part, they became more strongly curved. Between each of these rib-like marks was a
1020:
at the top of the cladogram, without including it in any specific eurypterid clade. Furthermore, the internal classification and phylogenetics of eurypterids have been substantially revised since 1983, making Plotnick's cladogram greatly misaligned from current knowledge.
845:
would not be an exception to these changes; having only been assigned to Stylonuridae due to its long and narrow telson (even though no member of this family or of Eurypterida as a whole was known at the time to have had an ornamentation similar to
973:
due to the lack of information regarding the telson of the latter. However, in 2013, the American and British palaeontologists James C. Lamsdell and Paul Antony Selden doubted this conclusion, noting that the preservation style of the specimen of
370:
consisting of rib-like curved lines on each side of the telson with reticulated (net-like) patterns between them. This ornamentation was unique, and was not known to have occurred in any other eurypterid at the time of the specimen's discovery.
1409: 1539:
of the Beartooth Butte section had a high salinity, higher than the other sections of paleontological importance in the formation, that resembled that of marine environments. With there also being evidence for the presence of
599:
and considered that comparison with other eurypterids was "superfluous" as the length of the telson and its ornamentation were sufficient for identification from other genera. Thus, in 1955, he named the new genus and
850:
as Kjellesvig-Waering admitted), the genus' classification within this family would be rendered as tentative in 1966 by Kjellesvig-Waering himself, although it would be continued by the Norwegian paleontologist
2442: 2564:
Waterston, Charles D. (1979). "Problems of functional morphology and classification in stylonuroid eurypterids (Chelicerata, Merostomata), with observations on the Scottish Silurian Stylonuroidea".
676:), albeit only tentatively. During this study, Kjellesvig-Waering said that new specimens found by the American paleontologists Robert Howland Denison and Eugene Stanley Richardson, Jr. showed that 1570:) fish. There is also a fossil plant flora, which Dorf interpreted as having come from terrestrial sources. A small amount of eurypterids can also be found at the section, these being 696:
eurypterid abdomens are divided in). No year of discovery of these specimens or further explanation about them was given, and later studies never mentioned them. The position of
2363:"From success to persistence: Identifying an evolutionary regime shift in the diverse Paleozoic aquatic arthropod group Eurypterida, driven by the Devonian biotic crisis" 442:
currently classified as part of Stylonuridae had lengths ranging from 10 centimetres (3.9 inches) to 1.15 metres (3 feet 9 inches), the smallest of them being
3390: 496: 3454: 3377: 517: 1606:) have been discovered. Eurypterids are present in this section as well, even in more abundance than fish, although they remain largely unstudied. 904:
as too fragmentary for inclusion into a specific eurypterid family, and so did the Norwegian paleontologist Odd Erik Tetlie in an unpublished PhD
1008:
on a cladogram in a thesis. The cladogram below follows Plotnick's thesis, which has been simplified to only include major eurypterid clades and
3474: 595:
its own genus. Despite the little material of which it consisted, he argued that the telson was one of the most diagnostic parts of eurypterid
3464: 3103: 3093: 2615: 950: 982:
discovered in the same locality and that its morphology did not bear close resemblance to any other eurypterid species, again questioning
3449: 2488: 2413: 3055: 2275: 1427:
was discovered on Early Devonian deposits at the Beartooth Butte Formation. The fossil in which it was preserved is a dolomitic (with
635:, was not given by Kjellesvig-Waering. However, an American biologist who also used this name in 1995 for a new living species of the 3070: 580: 837:. The family has since been revised, with new genera having been assigned to it, other genera having been moved to other clades ( 366:(the posteriormost division of the body), which was long, narrow, styliform and with a central carina ("keel"). It had a special 3314: 3098: 3040: 1620: 858:
In 1979, the British geologist Charles D. Waterston erected a new eurypterid family, Parastylonuridae, and included the genera
3088: 3078: 3032: 708:
and later classify it as an uncertain animal with an unknown position within Eurypterida. Some researchers have even doubted
3459: 3050: 3045: 961:
animal that had been erroneously labelled as a eurypterid, but he did not manage to reliably ensure the classification of
620: 324: 892:
was not retained by later researchers either, with the American professor and paleobiologist Roy E. Plotnick classifying
3083: 3060: 946: 900:
within Eurypterida in 1983. The American paleontologist Victor P. Tollerton, Jr. did the same in 1989 after considering
461: 1419:, an extinct species of fish found at the Beartooth Butte Formation. Fossil fish are highly abundant in this formation. 3469: 2144: 142: 460:
is a poorly known eurypterid that is only known from one single specimen. It has been interpreted as representing a
2517:
Tollerton, Victor P. (1989). "Morphology, taxonomy, and classification of the order Eurypterida Burmeister, 1843".
742:
on the right) in which it is known. The structure of the telson of this genus has been compared with the telson of
672:
Stylonuridae. He would reaffirm this in 1966 during a study in which he revised the superfamily Stylonuracea (now
112: 2716: 2608: 1615: 556: 522: 308: 2320: 2214:"Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates" 3023: 992:
Due to the scarce known fossil material of the genus and its uncertain relation with and within Eurypterida,
2162: 1508:
value. One of them is the section at the Beartooth Butte peak, discovered by Dorf in 1934 and aged as being
628: 1012:
genera not pertaining to any of them. The position of the genus on it holds no informative value regarding
3345: 2526: 693: 315:, in the United States. The first half of the name of the genus honors the discoverer of this formation, 3416: 2419: 680:
was a gigantic eurypterid whose reticulated patterns on the telson repeated on its opisthosomal (of the
1520:(the physical characteristics of the rocks) of the place as being proper of a non-marine, red-colored 3444: 3330: 2601: 2284: 2261: 2153: 1673: 1596: 1513: 1497: 1485:. This is opposed to the dark brown to black color of the fossils in which other eurypterids such as 596: 568: 552: 379: 304: 290: 2531: 1590: 575:. In 1988, this university was reorganized, and many of its eurypterid specimens, including that of 2367: 2108: 1602: 1524: 1290: 481: 476:
sides). It was bordered by a flattened rim, which was obliquely striated and had traces of pointed
417: 367: 129: 641: 2581: 2552: 2505: 2470: 2462: 2400: 2171: 1428: 925: 838: 137: 2443:"Like father, like son? Not amongst the eurypterids (Chelicerata) from Beartooth Butte, Wyoming" 912:
could be provisionally kept in Parastylonuridae for the time being due to its similarities with
720: 485:
reticulated (net-like) pattern consisting of very fine, also raised and not as prominent lines.
3421: 1415: 3403: 3395: 2919: 2852: 2844: 2544: 2392: 2384: 2349: 2302: 2253: 2235: 2189: 2121:
Anales del Instituto de Biología de la Universidad Nacional Autónoma de México, Serie Zoología
3408: 2484:"Phylogeny and palaeoecology of the Adelophthalmoidea (Arthropoda; Chelicerata; Eurypterida)" 3259: 2973: 2965: 2955: 2947: 2927: 2898: 2814: 2763: 2573: 2536: 2497: 2454: 2423: 2376: 2339: 2329: 2292: 2243: 2227: 2198: 1521: 1504:(both in the United States) that is divided into several sections, some of which have great 1459: 1451: 1059: 705: 669: 297: 2133: 953:(EDAX). This way, Tetlie was able to confirm that it was not some other organism such as a 3288: 3134: 2991: 2932: 2888: 2791: 2778: 2218: 1536: 1505: 1239: 821: 805: 786: 477: 852: 797:
was classified as part of Stylonuridae. At the time, this family consisted of the genera
2288: 2269:
Lamsdell, James C.; Braddy, Simon J.; Loeffler, Elizabeth J.; Dineley, David L. (2010).
841:
groups) and some genera having even been completely removed from the order Eurypterida.
651: 615:, who discovered the Beartooth Butte Formation on 1934. The second part consists on the 345: 3204: 3162: 3120: 2983: 2910: 2870: 2862: 2786: 2344: 2248: 1532: 1489:
have been found in the area, which again raises doubts regarding the classification of
1336: 1165: 937: 866: 777: 756: 750: 730: 388: 386:
have made the classification of this genus problematic. Currently, it is considered as
210: 1584:. Near the Beartooth Butte section, at the known as Cottonwood Canyon section, fossil 1473:
fossil was not a misidentified plant or vertebrate. Nevertheless, the fossil in which
3438: 3211: 3183: 3176: 3148: 3127: 2880: 2819: 2809: 2801: 2755: 2745: 2737: 2693: 2657: 2483: 2474: 2362: 2315: 2270: 1580: 1321: 1261: 1187: 1143: 1076: 1016:
though, as it was placed together with the rest of the genera Plotnick considered as
997: 876: 860: 833: 815: 799: 673: 616: 320: 70: 2585: 2556: 2509: 2404: 2213: 657: 351: 3169: 3001: 2937: 2893: 2768: 1555: 1042: 1000:, a science branch studying organisms and their evolutionary history) analyses and 700:
in Stylonuridae would not be accepted by future researchers, who would first refer
432: 378:
by the American paleontologist Erik Norman Kjellesvig-Waering in 1955, the strange
375: 282: 238: 1535:) conditions, with the environment possibly having been an estuarine channel. The 2184: 3266: 3243: 3141: 2835: 2728: 2666: 2648: 1563: 1541: 1226: 1130: 1093: 1028: 681: 627:, "wing"), which has been widely used for eurypterid genera. The meaning of its 612: 584: 444: 316: 184: 45: 3368: 1684: 1682: 3232: 3218: 3197: 3190: 3155: 2996: 2684: 2675: 2624: 2577: 2566:
Earth and Environmental Science Transactions of the Royal Society of Edinburgh
2540: 2501: 1559: 1482: 958: 827: 572: 435: 270: 197: 90: 55: 2548: 2388: 2306: 2239: 3309: 3293: 3283: 2642: 2334: 1527:
in which rocks were deposited in quiet, shallow and estuarine (proper of an
1517: 1447: 1432: 1001: 979: 965:
within Eurypterida. He thus only tentatively, and not formally, synonymized
413: 274: 174: 154: 95: 39: 2396: 2353: 2257: 2231: 2203: 1462:) of the fossils containing plants from the same place had a coat of small 400:
being a eurypterid at all has also been questioned. The locality in which
3362: 3252: 3225: 2185:"A revision of the families and genera of the Stylonuracea (Eurypterida)" 1585: 1567: 888:
and assigned the genus to this new family. Waterston's classification of
549: 545: 294: 121: 85: 80: 65: 60: 50: 3382: 2466: 2458: 2175: 1739: 1737: 1735: 1733: 1528: 1501: 1455: 1439: 689: 685: 601: 560: 530: 412:
and a few other eurypterids. The genus is believed to have lived in an
332: 312: 100: 75: 2380: 2636: 2113:
from Mexico (Coleoptera: Curculionidae, Anthonomini) associated with
1928: 1926: 1509: 1463: 905: 725: 636: 564: 465: 439: 404:
was found, the Beartooth Butte Formation, is home to fossils of many
363: 301: 278: 164: 32: 3339: 2297: 1795: 1793: 1720: 1718: 1705: 1703: 1701: 1699: 1697: 1650: 1648: 1646: 1644: 1642: 1640: 611:, honors the American geologist and Princeton University professor 1857: 1855: 1408: 954: 782: 749: 719: 646: 450: 409: 393: 340: 266: 1554:
has been found together with many other organisms, predominantly
2316:"Babes in the wood – a unique window into sea scorpion ontogeny" 1478: 1443: 1436: 1004:. An exception to this was made in 1983, when Plotnick included 908:
in 2004 despite having previously stated in the same paper that
405: 3343: 2597: 1810: 1808: 2593: 1901: 1899: 1897: 1895: 1893: 1891: 1889: 1688: 2415:
Eurypterid phylogeny with remarks on the origin of arachnids
1665: 1663: 916:. These similarities would also lead Tetlie to suggest that 2271:"Early Devonian stylonurine eurypterids from Arctic Canada" 1842: 1840: 1827: 1825: 1823: 2158:, a new genus of Eurypterida from the Devonian of Wyoming" 1446:
recovered from the same locality were mostly preserved in
607:
based on this fossil. The first part of the generic name,
2074: 2072: 2070: 2068: 2066: 2064: 1876: 1874: 1872: 1870: 396:
with unclear relationships) within Eurypterida, although
2003: 2001: 1756: 1754: 1752: 2132:
Dunlop, Jason A.; Penney, David; Jekel, Denise (2020).
928:
genera, although he did not act upon this possibility.
567:
was housed at the former paleontological museum of the
2134:"A summary list of fossil spiders and their relatives" 1531:, the final part of a river that joins the sea and of 764:
represents a telson of another species of this genus,
2368:
Evolution: International Journal of Organic Evolution
1477:
was preserved has a deep red color provoked by high
3352: 3302: 3276: 3242: 3112: 3069: 3031: 2982: 2964: 2946: 2918: 2907: 2879: 2861: 2843: 2832: 2800: 2777: 2754: 2736: 2725: 2709: 2702: 1799: 1743: 1724: 1709: 1654: 996:has not usually been included in phylogenetic (of 1944: 1932: 1861: 1544:, it has been proposed that the habitat in which 503: 760:and its counterpart. It has been suggested that 1772: 2090: 2043: 1905: 1814: 1669: 2609: 2212:Lamsdell, James C.; Braddy, Simon J. (2009). 1516:of the Early Devonian). Dorf interpreted the 789:Eurypterida. It includes one single species, 785:with unclear relationships) genus within the 8: 2482:Tetlie, Odd Erik; Poschmann, Markus (2008). 2361:Lamsdell, James C.; Selden, Paul A. (2017). 2314:Lamsdell, James C.; Selden, Paul A. (2013). 931:In 2007, Tetlie proposed that the fossil of 3340: 2915: 2840: 2733: 2706: 2616: 2602: 2594: 111: 22: 2530: 2343: 2333: 2296: 2247: 2202: 1968: 1846: 1831: 855:during his 1974 revision of Eurypterida. 2183:Kjellesvig-Waering, Erik Norman (1966). 2152:Kjellesvig-Waering, Erik Norman (1955). 563:, in the United States. Originally, the 382:and the little known fossil material of 319:, while the second half consists in the 1636: 2078: 2055: 2031: 2019: 2007: 1992: 1980: 1956: 1917: 1880: 1760: 664:Originally, Kjellesvig-Waering placed 1784: 1454:(the fine-grained material embedding 978:was different from that of the other 645:specified that it is composed by the 7: 1548:lived was estuarine and far inland. 884:with the structure of the telson of 704:to another eurypterid family called 362:consists of an incomplete uncrushed 2489:Journal of Systematic Palaeontology 1496:The Beartooth Butte Formation is a 1314: 1283: 1276: 1254: 1232: 1180: 1158: 1136: 1126: 1034: 1024: 2276:Canadian Journal of Earth Sciences 14: 581:Peabody Museum of Natural History 525:where the only known specimen of 3455:Early Devonian first appearances 3326: 3325: 3022: 2422:. pp. 1–344. Archived from 989:assignation within Eurypterida. 951:energy dispersive X-ray analysis 521:Ubication of the section of the 502: 495: 374:Originally described as part of 141: 3315:Timeline of eurypterid research 1945:Dunlop, Penney & Jekel 2020 1933:Dunlop, Penney & Jekel 2020 1862:Dunlop, Penney & Jekel 2020 1621:Timeline of eurypterid research 935:could represent the telson of 775:is currently classified as an 431:was originally described as a 128:, including a close-up on the 1: 3475:Fossil taxa described in 1955 273:, a group of extinct aquatic 3465:Eurypterids of North America 947:scanning electron microscope 120:Interpretive drawing of the 2145:Natural History Museum Bern 1773:Tetlie & Poschmann 2008 1597:Branchioscorpio richardsoni 1423:The only known specimen of 712:being a eurypterid at all. 358:The only known specimen of 124:and only known specimen of 18:Extinct genus of arthropods 3491: 3450:Enigmatic chelicerate taxa 2091:Lamsdell & Selden 2013 2044:Lamsdell & Selden 2017 1906:Lamsdell & Selden 2013 1815:Lamsdell & Selden 2017 1670:Lamsdell & Braddy 2009 1500:extending from Wyoming to 1487:Strobilopterus princetonii 1466:granules, confirming that 938:Strobilopterus princetonii 692:(the dorsal halves of the 3323: 3020: 2717:List of eurypterid genera 2631: 2578:10.1017/S0080456800012813 2541:10.1017/S0022336000041275 2502:10.1017/S1477201907002416 2441:Tetlie, Odd Erik (2007). 2412:Tetlie, Odd Erik (2004). 1616:List of eurypterid genera 1591:Acanthoscorpio mucronatus 1334: 1319: 1312: 1288: 1281: 1274: 1259: 1252: 1237: 1230: 1185: 1178: 1163: 1156: 1141: 1134: 1124: 1107: 1090: 1073: 1056: 1039: 1032: 791:Dorfopterus angusticollis 605:Dorfopterus angusticollis 557:Beartooth Butte Formation 544:only known specimen, its 523:Beartooth Butte Formation 510:Beartooth Butte Formation 309:Beartooth Butte Formation 289:, has been discovered in 248:Dorfopterus angusticollis 244: 237: 138:Scientific classification 136: 119: 110: 25: 2321:BMC Evolutionary Biology 2107:Clark, Wayne E. (1995). 655:, meaning "narrow", and 253:Kjellesvig-Waering, 1955 232:Kjellesvig-Waering, 1955 2519:Journal of Paleontology 2447:Journal of Paleontology 2335:10.1186/1471-2148-13-98 2163:Journal of Paleontology 1800:Kjellesvig-Waering 1966 1744:Kjellesvig-Waering 1955 1725:Kjellesvig-Waering 1966 1710:Kjellesvig-Waering 1955 1655:Kjellesvig-Waering 1955 533:, in the United States. 529:has been discovered in 331:), meaning "wing". The 2232:10.1098/rsbl.2009.0700 2204:10.5962/bhl.title.5219 2117:(Malvales: Tiliaceae)" 1603:Hydroscorpius denisoni 1420: 769: 757:Strobilopterus proteus 747: 579:, were donated to the 448:and the biggest being 3417:Paleobiology Database 2420:University of Bristol 2262:Supplemental material 2058:, pp. 1423–1424. 1674:supplemental material 1581:Jaekelopterus howelli 1481:deposits coming from 1412: 753: 723: 548:, was found on Lower 445:Ctenopterus cestrotus 3460:Devonian eurypterids 2436:(password-protected) 2141:World Spider Catalog 1689:Lamsdell et al. 2010 1498:geological formation 1416:Cosmaspis transversa 569:Princeton University 518:class=notpageimage| 2289:2010CaJES..47.1405J 1746:, pp. 696–697. 1291:Parahughmilleroidea 489:History of research 339:is composed by the 3470:Fossils of Wyoming 2845:Onychopterelloidea 2572:(10–12): 251–322. 2459:10.1666/06-033R1.1 2109:"A new species of 1421: 770: 748: 728:of the species of 724:Comparison of the 661:, meaning "neck". 464:impression of its 281:of the single and 3432: 3431: 3404:Open Tree of Life 3346:Taxon identifiers 3337: 3336: 3018: 3017: 3014: 3013: 3010: 3009: 2966:Adelophthalmoidea 2948:Waeringopteroidea 2920:Carcinosomatoidea 2853:Onychopterellidae 2828: 2827: 2381:10.1111/evo.13106 2283:(11): 1405–1415. 2190:Fieldiana Geology 2147:. pp. 1–304. 2034:, pp. 75–76. 1935:, pp. 17–30. 1493:as a eurypterid. 1401: 1400: 1392: 1391: 1383: 1382: 1374: 1373: 1365: 1364: 1356: 1355: 1347: 1346: 1301: 1300: 1216: 1215: 1207: 1206: 1198: 1197: 870:and, doubtfully, 258: 257: 233: 38:407.6–393.3  3482: 3425: 3424: 3412: 3411: 3399: 3398: 3386: 3385: 3373: 3372: 3371: 3341: 3329: 3328: 3303:Related articles 3260:Merostomichnites 3026: 2974:Adelophthalmidae 2956:Waeringopteridae 2928:Carcinosomatidae 2916: 2899:Strobilopteridae 2841: 2815:Hibbertopteridae 2764:Parastylonuridae 2734: 2707: 2618: 2611: 2604: 2595: 2589: 2560: 2534: 2513: 2478: 2453:(6): 1423–1431. 2437: 2434: 2432: 2431: 2408: 2357: 2347: 2337: 2310: 2300: 2265: 2251: 2208: 2206: 2179: 2148: 2138: 2128: 2094: 2088: 2082: 2076: 2059: 2053: 2047: 2041: 2035: 2029: 2023: 2017: 2011: 2005: 1996: 1990: 1984: 1978: 1972: 1966: 1960: 1954: 1948: 1942: 1936: 1930: 1921: 1915: 1909: 1903: 1884: 1878: 1865: 1859: 1850: 1844: 1835: 1829: 1818: 1812: 1803: 1797: 1788: 1782: 1776: 1770: 1764: 1758: 1747: 1741: 1728: 1722: 1713: 1707: 1692: 1686: 1677: 1667: 1658: 1652: 1572:D. angusticollis 1472: 1460:sedimentary rock 1458:or fossils in a 1315: 1284: 1277: 1255: 1233: 1181: 1159: 1137: 1127: 1060:Ruedemannipterus 1035: 1025: 988: 967:D. angusticollis 706:Parastylonuridae 590:The specimen of 543: 506: 505: 499: 438:of medium size. 287:D. angusticollis 231: 224: 209: 196: 146: 145: 115: 105: 42: 31:Temporal range: 23: 3490: 3489: 3485: 3484: 3483: 3481: 3480: 3479: 3435: 3434: 3433: 3428: 3420: 3415: 3407: 3402: 3394: 3389: 3381: 3376: 3367: 3366: 3361: 3348: 3338: 3333: 3319: 3298: 3289:Chasmataspidida 3272: 3238: 3135:Campylocephalus 3108: 3065: 3027: 3006: 2992:Hughmilleriidae 2978: 2960: 2942: 2933:Megalograptidae 2909: 2903: 2889:Dolichopteridae 2875: 2863:Moselopteroidea 2857: 2834: 2824: 2810:Drepanopteridae 2796: 2792:Hardieopteridae 2779:Kokomopteroidea 2773: 2750: 2727: 2721: 2698: 2627: 2622: 2592: 2563: 2532:10.1.1.726.6218 2516: 2481: 2440: 2435: 2429: 2427: 2411: 2360: 2313: 2298:10.1139/E10-053 2268: 2219:Biology Letters 2211: 2182: 2151: 2136: 2131: 2115:Mortoniodendron 2106: 2102: 2097: 2093:, pp. 2–3. 2089: 2085: 2081:, p. 1424. 2077: 2062: 2054: 2050: 2042: 2038: 2030: 2026: 2018: 2014: 2006: 1999: 1991: 1987: 1979: 1975: 1967: 1963: 1955: 1951: 1943: 1939: 1931: 1924: 1916: 1912: 1904: 1887: 1883:, p. 1430. 1879: 1868: 1860: 1853: 1845: 1838: 1830: 1821: 1813: 1806: 1798: 1791: 1783: 1779: 1771: 1767: 1763:, p. 1423. 1759: 1750: 1742: 1731: 1723: 1716: 1708: 1695: 1691:, p. 1408. 1687: 1680: 1668: 1661: 1653: 1638: 1634: 1629: 1612: 1537:paleoenviroment 1506:paleontological 1470: 1407: 1402: 1393: 1384: 1375: 1366: 1357: 1348: 1302: 1240:Moselopteroidea 1217: 1208: 1199: 986: 822:Melbournopterus 806:Campylocephalus 718: 541: 536: 535: 534: 520: 514: 513: 512: 511: 507: 491: 451:Pagea plotnicki 426: 349:("narrow") and 254: 251: 230: 222: 207: 194: 140: 132:of the fossil. 106: 104: 103: 98: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 37: 36: 29: 19: 12: 11: 5: 3488: 3486: 3478: 3477: 3472: 3467: 3462: 3457: 3452: 3447: 3437: 3436: 3430: 3429: 3427: 3426: 3413: 3400: 3387: 3374: 3358: 3356: 3350: 3349: 3344: 3335: 3334: 3324: 3321: 3320: 3318: 3317: 3312: 3306: 3304: 3300: 3299: 3297: 3296: 3291: 3286: 3280: 3278: 3277:Related groups 3274: 3273: 3271: 3270: 3263: 3256: 3248: 3246: 3240: 3239: 3237: 3236: 3229: 3222: 3215: 3208: 3205:Onychopterella 3201: 3194: 3187: 3180: 3173: 3166: 3163:Hibbertopterus 3159: 3152: 3145: 3138: 3131: 3124: 3121:Adelophthalmus 3116: 3114: 3113:Notable genera 3110: 3109: 3107: 3106: 3101: 3096: 3091: 3086: 3081: 3075: 3073: 3067: 3066: 3064: 3063: 3058: 3053: 3048: 3043: 3037: 3035: 3029: 3028: 3021: 3019: 3016: 3015: 3012: 3011: 3008: 3007: 3005: 3004: 2999: 2994: 2988: 2986: 2984:Pterygotioidea 2980: 2979: 2977: 2976: 2970: 2968: 2962: 2961: 2959: 2958: 2952: 2950: 2944: 2943: 2941: 2940: 2935: 2930: 2924: 2922: 2913: 2911:Diploperculata 2905: 2904: 2902: 2901: 2896: 2891: 2885: 2883: 2877: 2876: 2874: 2873: 2871:Moselopteridae 2867: 2865: 2859: 2858: 2856: 2855: 2849: 2847: 2838: 2830: 2829: 2826: 2825: 2823: 2822: 2817: 2812: 2806: 2804: 2798: 2797: 2795: 2794: 2789: 2787:Kokomopteridae 2783: 2781: 2775: 2774: 2772: 2771: 2766: 2760: 2758: 2752: 2751: 2749: 2748: 2742: 2740: 2738:Rhenopteroidea 2731: 2723: 2722: 2720: 2719: 2713: 2711: 2704: 2700: 2699: 2697: 2696: 2687: 2678: 2669: 2660: 2651: 2645: 2639: 2632: 2629: 2628: 2623: 2621: 2620: 2613: 2606: 2598: 2591: 2590: 2561: 2525:(5): 642–657. 2514: 2496:(2): 237–249. 2479: 2438: 2409: 2358: 2311: 2266: 2226:(2): 265–269. 2209: 2197:(9): 169–197. 2180: 2170:(4): 696–697. 2149: 2129: 2103: 2101: 2098: 2096: 2095: 2083: 2060: 2048: 2036: 2024: 2012: 2010:, p. 136. 1997: 1995:, p. 282. 1985: 1973: 1971:, p. 253. 1969:Waterston 1979 1961: 1949: 1937: 1922: 1910: 1885: 1866: 1851: 1849:, p. 655. 1847:Tollerton 1989 1836: 1834:, p. 298. 1832:Waterston 1979 1819: 1804: 1802:, p. 177. 1789: 1787:, p. 111. 1777: 1775:, p. 246. 1765: 1748: 1729: 1727:, p. 183. 1714: 1712:, p. 697. 1693: 1678: 1659: 1657:, p. 696. 1635: 1633: 1630: 1628: 1625: 1624: 1623: 1618: 1611: 1608: 1576:S. princetonii 1558:fish but also 1533:brackish water 1406: 1403: 1399: 1398: 1395: 1394: 1390: 1389: 1386: 1385: 1381: 1380: 1377: 1376: 1372: 1371: 1368: 1367: 1363: 1362: 1359: 1358: 1354: 1353: 1350: 1349: 1345: 1344: 1341: 1340: 1337:Pterygotioidea 1333: 1330: 1329: 1326: 1325: 1318: 1313: 1311: 1308: 1307: 1304: 1303: 1299: 1298: 1295: 1294: 1287: 1282: 1280: 1275: 1273: 1270: 1269: 1266: 1265: 1258: 1253: 1251: 1248: 1247: 1244: 1243: 1236: 1231: 1229: 1223: 1222: 1219: 1218: 1214: 1213: 1210: 1209: 1205: 1204: 1201: 1200: 1196: 1195: 1192: 1191: 1184: 1179: 1177: 1174: 1173: 1170: 1169: 1166:Rhenopteroidea 1162: 1157: 1155: 1152: 1151: 1148: 1147: 1140: 1135: 1133: 1125: 1123: 1120: 1119: 1116: 1115: 1106: 1103: 1102: 1099: 1098: 1089: 1086: 1085: 1082: 1081: 1072: 1069: 1068: 1065: 1064: 1055: 1052: 1051: 1048: 1047: 1038: 1033: 1031: 1023: 1018:incertae sedis 1010:incertae sedis 971:S. princetonii 922:Parastylonurus 914:Parastylonurus 898:incertae sedis 886:Parastylonurus 867:Parastylonurus 793:. Originally, 778:incertae sedis 766:S. princetonii 754:A specimen of 731:Parastylonurus 717: 716:Classification 714: 516: 515: 509: 508: 501: 500: 494: 493: 492: 490: 487: 471:The telson of 425: 422: 389:incertae sedis 256: 255: 252: 242: 241: 235: 234: 220: 216: 215: 212:incertae sedis 205: 201: 200: 192: 188: 187: 182: 178: 177: 172: 168: 167: 162: 158: 157: 152: 148: 147: 134: 133: 117: 116: 108: 107: 99: 94: 89: 84: 79: 74: 69: 64: 59: 54: 49: 44: 43: 30: 17: 13: 10: 9: 6: 4: 3: 2: 3487: 3476: 3473: 3471: 3468: 3466: 3463: 3461: 3458: 3456: 3453: 3451: 3448: 3446: 3443: 3442: 3440: 3423: 3418: 3414: 3410: 3405: 3401: 3397: 3392: 3388: 3384: 3379: 3375: 3370: 3364: 3360: 3359: 3357: 3355: 3351: 3347: 3342: 3332: 3322: 3316: 3313: 3311: 3308: 3307: 3305: 3301: 3295: 3292: 3290: 3287: 3285: 3282: 3281: 3279: 3275: 3269: 3268: 3264: 3262: 3261: 3257: 3255: 3254: 3250: 3249: 3247: 3245: 3241: 3235: 3234: 3230: 3228: 3227: 3223: 3221: 3220: 3216: 3214: 3213: 3212:Pentecopterus 3209: 3207: 3206: 3202: 3200: 3199: 3195: 3193: 3192: 3188: 3186: 3185: 3184:Megalograptus 3181: 3179: 3178: 3177:Jaekelopterus 3174: 3172: 3171: 3167: 3165: 3164: 3160: 3158: 3157: 3153: 3151: 3150: 3149:Drepanopterus 3146: 3144: 3143: 3139: 3137: 3136: 3132: 3130: 3129: 3128:Brachyopterus 3125: 3123: 3122: 3118: 3117: 3115: 3111: 3105: 3104:South America 3102: 3100: 3097: 3095: 3094:North America 3092: 3090: 3087: 3085: 3082: 3080: 3077: 3076: 3074: 3072: 3068: 3062: 3059: 3057: 3056:Carboniferous 3054: 3052: 3049: 3047: 3044: 3042: 3039: 3038: 3036: 3034: 3033:Geochronology 3030: 3025: 3003: 3000: 2998: 2995: 2993: 2990: 2989: 2987: 2985: 2981: 2975: 2972: 2971: 2969: 2967: 2963: 2957: 2954: 2953: 2951: 2949: 2945: 2939: 2936: 2934: 2931: 2929: 2926: 2925: 2923: 2921: 2917: 2914: 2912: 2906: 2900: 2897: 2895: 2892: 2890: 2887: 2886: 2884: 2882: 2881:Eurypteroidea 2878: 2872: 2869: 2868: 2866: 2864: 2860: 2854: 2851: 2850: 2848: 2846: 2842: 2839: 2837: 2831: 2821: 2820:Mycteroptidae 2818: 2816: 2813: 2811: 2808: 2807: 2805: 2803: 2802:Mycteropoidea 2799: 2793: 2790: 2788: 2785: 2784: 2782: 2780: 2776: 2770: 2767: 2765: 2762: 2761: 2759: 2757: 2756:Stylonuroidea 2753: 2747: 2746:Rhenopteridae 2744: 2743: 2741: 2739: 2735: 2732: 2730: 2724: 2718: 2715: 2714: 2712: 2708: 2705: 2701: 2695: 2694:Sclerophorata 2691: 2688: 2686: 2682: 2679: 2677: 2673: 2670: 2668: 2664: 2661: 2659: 2658:Euchelicerata 2655: 2652: 2650: 2646: 2644: 2640: 2638: 2634: 2633: 2630: 2626: 2619: 2614: 2612: 2607: 2605: 2600: 2599: 2596: 2587: 2583: 2579: 2575: 2571: 2567: 2562: 2558: 2554: 2550: 2546: 2542: 2538: 2533: 2528: 2524: 2520: 2515: 2511: 2507: 2503: 2499: 2495: 2491: 2490: 2485: 2480: 2476: 2472: 2468: 2464: 2460: 2456: 2452: 2448: 2444: 2439: 2426:on 2021-07-30 2425: 2421: 2417: 2416: 2410: 2406: 2402: 2398: 2394: 2390: 2386: 2382: 2378: 2375:(1): 95–110. 2374: 2370: 2369: 2364: 2359: 2355: 2351: 2346: 2341: 2336: 2331: 2327: 2323: 2322: 2317: 2312: 2308: 2304: 2299: 2294: 2290: 2286: 2282: 2278: 2277: 2272: 2267: 2263: 2259: 2255: 2250: 2245: 2241: 2237: 2233: 2229: 2225: 2221: 2220: 2215: 2210: 2205: 2200: 2196: 2192: 2191: 2186: 2181: 2177: 2173: 2169: 2165: 2164: 2159: 2157: 2150: 2146: 2142: 2135: 2130: 2127:(1): 107–112. 2126: 2122: 2118: 2116: 2112: 2105: 2104: 2099: 2092: 2087: 2084: 2080: 2075: 2073: 2071: 2069: 2067: 2065: 2061: 2057: 2052: 2049: 2046:, p. 97. 2045: 2040: 2037: 2033: 2028: 2025: 2022:, p. 28. 2021: 2016: 2013: 2009: 2004: 2002: 1998: 1994: 1989: 1986: 1983:, p. 75. 1982: 1977: 1974: 1970: 1965: 1962: 1959:, p. 72. 1958: 1953: 1950: 1947:, p. 29. 1946: 1941: 1938: 1934: 1929: 1927: 1923: 1920:, p. 67. 1919: 1914: 1911: 1907: 1902: 1900: 1898: 1896: 1894: 1892: 1890: 1886: 1882: 1877: 1875: 1873: 1871: 1867: 1864:, p. 28. 1863: 1858: 1856: 1852: 1848: 1843: 1841: 1837: 1833: 1828: 1826: 1824: 1820: 1817:, p. 96. 1816: 1811: 1809: 1805: 1801: 1796: 1794: 1790: 1786: 1781: 1778: 1774: 1769: 1766: 1762: 1757: 1755: 1753: 1749: 1745: 1740: 1738: 1736: 1734: 1730: 1726: 1721: 1719: 1715: 1711: 1706: 1704: 1702: 1700: 1698: 1694: 1690: 1685: 1683: 1679: 1675: 1671: 1666: 1664: 1660: 1656: 1651: 1649: 1647: 1645: 1643: 1641: 1637: 1631: 1626: 1622: 1619: 1617: 1614: 1613: 1609: 1607: 1605: 1604: 1599: 1598: 1593: 1592: 1587: 1583: 1582: 1577: 1573: 1569: 1566:and dipnoan ( 1565: 1561: 1557: 1556:heterostracan 1553: 1549: 1547: 1543: 1538: 1534: 1530: 1526: 1523: 1519: 1515: 1511: 1507: 1503: 1499: 1494: 1492: 1488: 1484: 1480: 1476: 1469: 1465: 1461: 1457: 1453: 1449: 1445: 1441: 1438: 1434: 1430: 1426: 1418: 1417: 1411: 1404: 1397: 1396: 1388: 1387: 1379: 1378: 1370: 1369: 1361: 1360: 1352: 1351: 1343: 1342: 1339: 1338: 1332: 1331: 1328: 1327: 1324: 1323: 1322:Mixopteroidea 1317: 1316: 1310: 1309: 1306: 1305: 1297: 1296: 1293: 1292: 1286: 1285: 1279: 1278: 1272: 1271: 1268: 1267: 1264: 1263: 1262:Eurypteroidea 1257: 1256: 1250: 1249: 1246: 1245: 1242: 1241: 1235: 1234: 1228: 1225: 1224: 1221: 1220: 1212: 1211: 1203: 1202: 1194: 1193: 1190: 1189: 1188:Stylonuroidea 1183: 1182: 1176: 1175: 1172: 1171: 1168: 1167: 1161: 1160: 1154: 1153: 1150: 1149: 1146: 1145: 1144:Mycteropoidea 1139: 1138: 1132: 1129: 1128: 1122: 1121: 1118: 1117: 1114: 1113: 1112: 1105: 1104: 1101: 1100: 1097: 1096: 1095: 1088: 1087: 1084: 1083: 1080: 1079: 1078: 1077:Vernonopterus 1071: 1070: 1067: 1066: 1063: 1062: 1061: 1054: 1053: 1050: 1049: 1046: 1045: 1044: 1037: 1036: 1030: 1027: 1026: 1022: 1019: 1015: 1011: 1007: 1003: 999: 998:phylogenetics 995: 990: 985: 981: 977: 972: 968: 964: 960: 956: 952: 949:(SEM) and an 948: 944: 940: 939: 934: 929: 927: 923: 919: 915: 911: 907: 903: 899: 895: 891: 887: 883: 879: 878: 877:Lamontopterus 873: 869: 868: 863: 862: 861:Hardieopterus 856: 854: 849: 844: 840: 836: 835: 834:Tarsopterella 830: 829: 824: 823: 818: 817: 816:Drepanopterus 812: 808: 807: 802: 801: 800:Brachyopterus 796: 792: 788: 784: 780: 779: 774: 767: 763: 759: 758: 752: 745: 741: 740:P. hendersoni 738:on the left, 737: 733: 732: 727: 722: 715: 713: 711: 707: 703: 699: 695: 691: 687: 683: 679: 675: 674:Stylonuroidea 671: 667: 662: 660: 659: 654: 653: 648: 644: 643: 638: 634: 633:angusticollis 630: 629:specific name 626: 622: 618: 617:Ancient Greek 614: 610: 606: 603: 598: 593: 588: 586: 582: 578: 574: 570: 566: 562: 558: 554: 551: 547: 540: 532: 528: 524: 519: 498: 488: 486: 483: 482:ornamentation 479: 474: 469: 467: 463: 459: 455: 453: 452: 447: 446: 441: 437: 434: 430: 423: 421: 419: 415: 411: 407: 403: 399: 395: 391: 390: 385: 381: 377: 372: 369: 368:ornamentation 365: 361: 356: 354: 353: 348: 347: 342: 338: 337:angusticollis 334: 330: 326: 322: 321:Ancient Greek 318: 314: 310: 306: 303: 299: 296: 293:of the Early 292: 288: 284: 280: 276: 272: 268: 264: 263: 250: 249: 243: 240: 236: 229: 228: 221: 218: 217: 214: 213: 206: 203: 202: 199: 193: 190: 189: 186: 183: 180: 179: 176: 173: 170: 169: 166: 163: 160: 159: 156: 153: 150: 149: 144: 139: 135: 131: 130:ornamentation 127: 123: 118: 114: 109: 102: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 41: 34: 28: 24: 21: 16: 3353: 3265: 3258: 3251: 3231: 3224: 3217: 3210: 3203: 3196: 3189: 3182: 3175: 3170:Hughmilleria 3168: 3161: 3154: 3147: 3140: 3133: 3126: 3119: 3002:Pterygotidae 2938:Mixopteridae 2894:Eurypteridae 2769:Stylonuridae 2689: 2680: 2671: 2662: 2653: 2569: 2565: 2522: 2518: 2493: 2487: 2450: 2446: 2428:. Retrieved 2424:the original 2414: 2372: 2366: 2328:(98): 1–46. 2325: 2319: 2280: 2274: 2223: 2217: 2194: 2188: 2167: 2161: 2155: 2140: 2124: 2120: 2114: 2111:Lonchophorus 2110: 2100:Bibliography 2086: 2051: 2039: 2027: 2015: 1988: 1976: 1964: 1952: 1940: 1913: 1908:, p. 2. 1780: 1768: 1601: 1595: 1589: 1579: 1575: 1571: 1564:osteostracan 1551: 1550: 1545: 1495: 1490: 1486: 1474: 1467: 1464:carbonaceous 1424: 1422: 1414: 1413:Specimen of 1405:Paleoecology 1335: 1320: 1289: 1260: 1238: 1186: 1164: 1142: 1110: 1109: 1108: 1092: 1091: 1075: 1074: 1058: 1057: 1043:Unionopterus 1041: 1040: 1017: 1013: 1009: 1005: 993: 991: 983: 975: 970: 966: 962: 942: 936: 932: 930: 921: 917: 913: 909: 901: 897: 893: 889: 885: 881: 875: 871: 865: 859: 857: 853:Leif Størmer 847: 842: 832: 826: 820: 814: 810: 804: 798: 794: 790: 781:(that is, a 776: 772: 771: 765: 761: 755: 743: 739: 735: 729: 709: 701: 697: 677: 665: 663: 656: 650: 642:Lonchophorus 640: 632: 624: 608: 604: 591: 589: 576: 538: 537: 526: 472: 470: 457: 456: 449: 443: 428: 427: 401: 397: 387: 383: 376:Stylonuridae 373: 359: 357: 350: 344: 336: 328: 286: 283:type species 261: 260: 259: 247: 246: 239:Type species 226: 225: 211: 125: 26: 20: 15: 3445:Eurypterida 3354:Dorfopterus 3267:Palmichnium 3244:Ichnogenera 3142:Carcinosoma 2836:Eurypterina 2729:Stylonurina 2667:Prosomapoda 2649:Chelicerata 2647:Subphylum: 2625:Eurypterids 2156:Dorfopterus 2079:Tetlie 2007 2056:Tetlie 2007 2032:Tetlie 2004 2020:Tetlie 2004 2008:Tetlie 2004 1993:Tetlie 2004 1981:Tetlie 2004 1957:Tetlie 2004 1918:Tetlie 2004 1881:Tetlie 2007 1761:Tetlie 2007 1552:Dorfopterus 1546:Dorfopterus 1542:fresh water 1491:Dorfopterus 1483:iron oxides 1475:Dorfopterus 1468:Dorfopterus 1435:mixed with 1425:Dorfopterus 1227:Eurypterina 1131:Stylonurina 1111:Dorfopterus 1094:Dunsopterus 1029:Eurypterida 1014:Dorfopterus 1006:Dorfopterus 994:Dorfopterus 984:Dorfopterus 976:Dorfopterus 963:Dorfopterus 943:Dorfopterus 933:Dorfopterus 918:Dorfopterus 910:Dorfopterus 902:Dorfopterus 894:Dorfopterus 890:Dorfopterus 882:Dorfopterus 872:Dorfopterus 848:Dorfopterus 843:Dorfopterus 811:Ctenopterus 795:Dorfopterus 773:Dorfopterus 762:Dorfopterus 744:Dorfopterus 710:Dorfopterus 702:Dorfopterus 698:Dorfopterus 682:opisthosoma 678:Dorfopterus 666:Dorfopterus 613:Erling Dorf 609:Dorfopterus 592:Dorfopterus 585:Connecticut 577:Dorfopterus 539:Dorfopterus 527:Dorfopterus 473:Dorfopterus 458:Dorfopterus 429:Dorfopterus 424:Description 402:Dorfopterus 398:Dorfopterus 384:Dorfopterus 360:Dorfopterus 317:Erling Dorf 277:. Only one 262:Dorfopterus 227:Dorfopterus 198:Eurypterida 185:Chelicerata 181:Subphylum: 126:Dorfopterus 27:Dorfopterus 3439:Categories 3233:Stylonurus 3219:Pterygotus 3198:Mixopterus 3191:Megarachne 3156:Eurypterus 3041:Ordovician 2997:Slimonidae 2908:Infraorder 2685:Dekatriata 2676:Planaterga 2643:Arthropoda 2430:2021-08-01 1785:Clark 1995 1627:References 1560:arthrodire 1450:while the 1002:cladograms 980:arthropods 959:vertebrate 945:through a 926:synonymous 828:Stylonurus 736:P. ornatus 597:morphology 573:New Jersey 436:eurypterid 433:stylonurid 380:morphology 355:("neck"). 275:arthropods 271:eurypterid 175:Arthropoda 3310:Metastoma 3294:Xiphosura 3284:Arachnida 3071:Geography 2635:Kingdom: 2549:0022-3360 2527:CiteSeerX 2475:131602038 2389:1558-5646 2307:0008-4077 2240:1744-9561 1632:Citations 1586:scorpions 1518:lithology 1448:phosphate 1442:. Fossil 1433:limestone 924:could be 839:taxonomic 414:estuarine 307:) in the 161:Kingdom: 155:Eukaryota 3369:Q5297745 3363:Wikidata 3331:Category 3253:Arcuites 3226:Slimonia 3051:Devonian 3046:Silurian 2833:Suborder 2726:Suborder 2703:Taxonomy 2641:Phylum: 2637:Animalia 2586:86903384 2557:46953627 2510:59488956 2405:42573178 2397:27783385 2354:23663507 2258:19828493 1610:See also 1568:lungfish 1522:infilled 1456:crystals 1440:minerals 1429:dolomite 694:segments 690:tergites 652:angustus 553:deposits 550:Devonian 546:holotype 346:angustus 295:Devonian 291:deposits 204:Family: 171:Phylum: 165:Animalia 151:Domain: 122:holotype 3409:3581782 3396:1265557 3383:4650052 3099:Oceania 3061:Permian 2467:4541258 2418:(PhD). 2345:3679797 2285:Bibcode 2249:2865068 2176:1300354 1529:estuary 1525:channel 1502:Montana 726:telsons 686:abdomen 668:in the 619:suffix 602:species 561:Wyoming 555:on the 531:Wyoming 418:channel 416:inland 333:species 313:Wyoming 219:Genus: 191:Order: 3089:Europe 3079:Africa 2710:Genera 2584:  2555:  2547:  2529:  2508:  2473:  2465:  2403:  2395:  2387:  2352:  2342:  2305:  2256:  2246:  2238:  2174:  1510:Emsian 1452:matrix 906:thesis 684:, its 670:family 658:collum 649:words 639:genus 637:weevil 625:pteron 621:πτερόν 565:fossil 480:. The 478:scales 466:telson 462:dorsal 440:Genera 410:plants 364:telson 352:collum 343:words 329:pteron 325:πτερόν 302:Emsian 298:period 279:fossil 33:Emsian 3422:18961 3391:IRMNG 2690:Clade 2681:Clade 2672:Clade 2663:Clade 2654:Clade 2582:S2CID 2553:S2CID 2506:S2CID 2471:S2CID 2463:JSTOR 2401:S2CID 2172:JSTOR 2137:(PDF) 1514:stage 1471:' 987:' 969:with 957:or a 955:plant 787:order 783:taxon 647:Latin 542:' 394:taxon 341:Latin 335:name 323:word 305:stage 267:genus 265:is a 3378:GBIF 3084:Asia 2545:ISSN 2393:PMID 2385:ISSN 2350:PMID 2303:ISSN 2254:PMID 2236:ISSN 1600:and 1578:and 1479:iron 1444:fish 1437:clay 920:and 874:and 831:and 406:fish 46:PreꞒ 2574:doi 2537:doi 2498:doi 2455:doi 2377:doi 2340:PMC 2330:doi 2293:doi 2244:PMC 2228:doi 2199:doi 1512:(a 896:as 583:at 571:at 559:on 392:(a 311:in 269:of 3441:: 3419:: 3406:: 3393:: 3380:: 3365:: 2692:: 2683:: 2674:: 2665:: 2656:: 2580:. 2570:70 2568:. 2551:. 2543:. 2535:. 2523:63 2521:. 2504:. 2492:. 2486:. 2469:. 2461:. 2451:81 2449:. 2445:. 2399:. 2391:. 2383:. 2373:71 2371:. 2365:. 2348:. 2338:. 2326:13 2324:. 2318:. 2301:. 2291:. 2281:47 2279:. 2273:. 2260:. 2252:. 2242:. 2234:. 2222:. 2216:. 2195:14 2193:. 2187:. 2168:29 2166:. 2160:. 2143:. 2139:. 2125:66 2123:. 2119:. 2063:^ 2000:^ 1925:^ 1888:^ 1869:^ 1854:^ 1839:^ 1822:^ 1807:^ 1792:^ 1751:^ 1732:^ 1717:^ 1696:^ 1681:^ 1672:, 1662:^ 1639:^ 1594:, 1574:, 1562:, 1431:) 864:, 825:, 819:, 813:, 809:, 803:, 688:) 631:, 587:. 454:. 420:. 408:, 285:, 96:Pg 40:Ma 35:, 2617:e 2610:t 2603:v 2588:. 2576:: 2559:. 2539:: 2512:. 2500:: 2494:6 2477:. 2457:: 2433:. 2407:. 2379:: 2356:. 2332:: 2309:. 2295:: 2287:: 2264:. 2230:: 2224:6 2207:. 2201:: 2178:. 2154:" 1676:. 1588:( 768:. 746:. 734:( 623:( 327:( 300:( 245:† 223:† 208:† 195:† 101:N 91:K 86:J 81:T 76:P 71:C 66:D 61:S 56:O 51:Ꞓ

Index

Emsian
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

holotype
ornamentation
Scientific classification
Edit this classification
Eukaryota
Animalia
Arthropoda
Chelicerata
Eurypterida
incertae sedis
Dorfopterus
Type species
genus
eurypterid
arthropods

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.