Knowledge (XXG)

Pteridinium

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Meyer, Mike; Elliott, David; Wood, Andrew D.; Polys, Nicholas F.; Colbert, Matthew; Maisano, Jessica A.; Vickers-Rich, Patricia; Hall, Michael; Hoffman, Karl H.; Schneider, Gabi; Xiao, Shuhai (1 August 2014). "Three-dimensional microCT analysis of the Ediacara fossil Pteridinium simplex sheds new
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The three-lobed body is generally flat such that only two lobes are visible. Each lobe consists of a number of parallel ribs extending back to the main axis where the three lobes come together. Even on well-preserved specimens, there is no sign of a mouth, anus, eyes, legs, antennae, or any other
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appendages or organs. The organism grew primarily by the addition of new units, probably at both ends, with the inflation of existing units contributing little to its growth.
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specimens were found in North Carolina in 1963 by a high school student named John Brattain. After their discovery, they were misidentified by Joseph St. Jean from the
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Specimens found in what is thought to be life positions indicate that the creature rested on, or possibly in, the
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is not clear. There are no identified related forms, although there is some vague resemblance to other
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Chen, Zhe; Zhou, Chuanming; Xiao, Shuhai; Wang, Wei; Guan, Chengguo; Hua, Hong; Yuan, Xunlai (2014).
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in shallow seas. No tracks are known that would seem to be consistent with a moving
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that share some of its enigmatic characteristics, such as the "staggered" or
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carolinaensis", until they were discovered to be a species of
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of its units, or triradial symmetry otherwise only seen in
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Zeitschrift der Deutschen Geologischen Gesellschaft
320:Fossils are common in late Precambrian deposits in 679:light on its ecology and phylogenetic affinity". 599:Proceedings of the National Academy of Sciences 593:Laflamme, M.; Xiao, S.; Kowalewski, M. (2009). 588: 586: 550: 548: 8: 729: 595:"Osmotrophy in modular Ediacara organisms" 279:deposits worldwide. It is a member of the 109: 20: 628: 618: 528: 487: 122:at the Senckenberg Museum, Frankfurt. 308:. It is unclear whether it performed 7: 14: 379:was already used back in 1777 by 131: 701:10.1016/j.precamres.2014.04.013 420:It was originally thought that 1: 849:Fossil taxa described in 1930 387:, and so it was changed to " 367:was originally described by 340:. It has also been found in 661:American Journal of Science 865: 466:has no known descendants. 409:, and were classified as " 844:Prehistoric animal genera 250: 243: 216: 211: 128:Scientific classification 126: 117: 108: 23: 652:St Jean, Joseph (1973). 476:List of Ediacaran genera 383:as the generic name for 620:10.1073/pnas.0904836106 402:Geology Department as 806:Paleobiology Database 570:Paleobiology Database 424:might be a primitive 375:vol.82 p. 637. 371:in 1930 published in 350:Northwest Territories 344:and is reported from 275:found in a number of 681:Precambrian Research 693:2014PreR..249...79M 611:2009PNAS..10614438L 605:(34): 14438–14443. 513:2014NatSR...4E4180C 120:Pteridinium simplex 501:Scientific Reports 257:Keller et al. 1974 839:White Sea fossils 821: 820: 793:Open Tree of Life 735:Taxon identifiers 715:Vendian Animals: 663:. 273-A: 196–216. 568:. Gateway to the 521:10.1038/srep04180 365:Pteridium simplex 264: 263: 258: 237: 224: 207: 856: 814: 813: 801: 800: 788: 787: 775: 774: 762: 761: 760: 730: 704: 665: 664: 658: 649: 643: 642: 632: 622: 590: 581: 580: 578: 576: 552: 543: 542: 532: 492: 256: 235: 233:P. carolinaensis 222: 199: 192: 179: 166: 136: 135: 113: 103: 40: 29:Temporal range: 21: 16:Ediacaran fossil 864: 863: 859: 858: 857: 855: 854: 853: 824: 823: 822: 817: 809: 804: 796: 791: 783: 778: 770: 765: 756: 755: 750: 737: 711: 677: 674: 672:Further reading 669: 668: 656: 651: 650: 646: 592: 591: 584: 574: 572: 554: 553: 546: 494: 493: 489: 484: 472: 430:Ediacaran biota 362: 322:South Australia 318: 298: 289: 281:Ediacaran biota 198: 190: 177: 164: 130: 104: 102: 101: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 35: 34: 27: 17: 12: 11: 5: 862: 860: 852: 851: 846: 841: 836: 834:Ediacaran life 826: 825: 819: 818: 816: 815: 802: 789: 776: 763: 747: 745: 739: 738: 733: 727: 726: 721: 710: 709:External links 707: 706: 705: 673: 670: 667: 666: 644: 582: 544: 486: 485: 483: 480: 479: 478: 471: 468: 450:glide symmetry 436:forms such as 361: 358: 342:North Carolina 317: 314: 310:photosynthesis 297: 294: 288: 285: 262: 261: 260: 259: 248: 247: 241: 240: 239: 238: 236:St. Jean, 1973 230: 214: 213: 209: 208: 188: 184: 183: 181:Erniettomorpha 175: 171: 170: 162: 158: 157: 152: 148: 147: 142: 138: 137: 124: 123: 115: 114: 106: 105: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 42: 41: 28: 15: 13: 10: 9: 6: 4: 3: 2: 861: 850: 847: 845: 842: 840: 837: 835: 832: 831: 829: 812: 807: 803: 799: 794: 790: 786: 781: 777: 773: 768: 764: 759: 753: 749: 748: 746: 744: 740: 736: 731: 725: 722: 719: 718: 713: 712: 708: 702: 698: 694: 690: 686: 682: 676: 675: 671: 662: 655: 648: 645: 640: 636: 631: 626: 621: 616: 612: 608: 604: 600: 596: 589: 587: 583: 571: 567: 566: 561: 559: 551: 549: 545: 540: 536: 531: 526: 522: 518: 514: 510: 506: 502: 498: 491: 488: 481: 477: 474: 473: 469: 467: 465: 461: 460: 459:Tribrachidium 455: 451: 447: 446: 441: 440: 435: 431: 427: 423: 418: 416: 412: 408: 405: 401: 397: 392: 390: 386: 382: 378: 374: 370: 366: 359: 357: 355: 351: 347: 343: 339: 335: 331: 327: 323: 315: 313: 311: 307: 303: 295: 293: 286: 284: 282: 278: 274: 273:erniettomorph 270: 269: 255: 252: 251: 249: 246: 242: 234: 231: 228: 221: 218: 217: 215: 210: 206: 202: 197: 196: 189: 186: 185: 182: 176: 173: 172: 169: 163: 160: 159: 156: 153: 150: 149: 146: 143: 140: 139: 134: 129: 125: 121: 116: 112: 107: 100: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 45: 39: 36:558–543  32: 26: 22: 19: 742: 716: 684: 680: 660: 647: 602: 598: 573:. Retrieved 563: 557: 504: 500: 490: 463: 457: 454:trilobozoans 443: 437: 421: 419: 414: 395: 393: 388: 385:bracken fern 376: 372: 369:Georg Gürich 364: 363: 326:South Africa 319: 305: 299: 290: 267: 266: 265: 253: 232: 227:type species 223:Gürich, 1930 219: 194: 193: 119: 24: 18: 743:Pteridinium 717:Pteridinium 575:23 February 565:Fossilworks 558:Pteridinium 464:Pteridinium 439:Dickinsonia 422:Pteridinium 415:Pteridinium 411:Paradoxides 396:Pteridinium 391:" in 1933. 389:Pteridinium 306:Pteridinium 277:Precambrian 268:Pteridinium 195:Pteridinium 168:Petalonamae 25:Pteridinium 828:Categories 724:Photograph 482:References 407:trilobites 346:California 336:region of 332:, and the 316:Occurrence 220:P. simplex 118:Fossil of 687:: 79–87. 445:Spriggina 434:Ediacaran 426:Cnidarian 377:Pteridium 334:White Sea 287:Body plan 151:Kingdom: 145:Eukaryota 31:Ediacaran 752:Wikidata 639:19706530 539:24566959 507:: 4180. 470:See also 404:Cambrian 348:and the 302:sediment 245:Synonyms 212:Species 161:Phylum: 155:Animalia 141:Domain: 798:6375569 785:1268893 772:8027112 758:Q680300 689:Bibcode 630:2732876 607:Bibcode 530:3933909 509:Bibcode 381:Scopoli 360:History 330:Namibia 296:Ecology 187:Genus: 174:Class: 637:  627:  537:  527:  354:Canada 338:Russia 271:is an 254:Onegia 201:Gürich 780:IRMNG 657:(PDF) 456:like 811:4722 767:GBIF 635:PMID 577:2024 535:PMID 442:and 394:Two 205:1930 44:PreꞒ 697:doi 685:249 625:PMC 615:doi 603:106 525:PMC 517:doi 400:UNC 352:of 830:: 808:: 795:: 782:: 769:: 754:: 695:. 683:. 659:. 633:. 623:. 613:. 601:. 597:. 585:^ 562:. 547:^ 533:. 523:. 515:. 503:. 499:. 462:. 417:. 356:. 328:, 324:, 283:. 203:, 94:Pg 38:Ma 33:, 703:. 699:: 691:: 641:. 617:: 609:: 579:. 560:" 556:" 541:. 519:: 511:: 505:4 229:) 225:( 191:† 178:† 165:† 99:N 89:K 84:J 79:T 74:P 69:C 64:D 59:S 54:O 49:Ꞓ

Index

Ediacaran
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Scientific classification
Edit this classification
Eukaryota
Animalia
Petalonamae
Erniettomorpha
Pteridinium
Gürich
1930
type species
Synonyms
erniettomorph
Precambrian
Ediacaran biota
sediment

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