317:
117:
399:
that are directed slightly outward from both front and back of the eyes. The glabella has approximately parallel, slightly concave sides and is rounded frontally. Lateral furrows are indiscernible, as is the occipital ring. The palpebral lobes are not distinctly separated from the narrow occular
637:
SAMSONOWICZ, J. 1959b. On
Strenuella and Germaropyge from the Lower Cambrian in the KlimontĂłw Anticlinorium. Bulletin de lâAcademie Polonaise des Sciences, SĂ©rie des sciences chimiques, gĂ©ologiques et gĂ©ographiques,
458:
BeitrÀge zur
Naturgesichte der Urwelt. Organische Reste (Petrefacten) aus der Altenbruger BraunkohlenFormation, dem Blankenburger Quadersandstein, Jenaischen bunten Sandstein und Böhmischen Uebergangsgebirge
624:
SAMSONOWICZ, J. 1959a. On
Strenuaeva from Lower Cambrian in KlimontĂłw Anticlinorium. ÂŽ Bulletin de lâAcadĂ©mie Polonaise des Sciences, SĂ©rie des sciences chimiques, gĂ©ologiques et gĂ©ographiques.
365:
Biosuperzone) of Sweden and found near Viken, NĂ€kten lake, NĂ€rke and JĂ€mtland. The species is also known from drill cores retrieved from the island of
Gotland, Sweden (e.g., Ahlberg 1989).
813:
440:, enroll differently from other trilobites so that the posterior thorax segments and pygidium bend under the thorax. This is called "double enrollment".
874:
800:
869:
686:
400:
ridges. The preglabellar field is somewhat inflated and librigenae are half as wide as the fixigenae. Some species have genal spines (as in
879:
694:
689:. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. 1â560.
513:
FATKA, O. & SZABAD, M., 2014. Biostratigraphy of
Cambrian in the PĆĂbram-Jince Basin (Barrandian area, Czech Republic).
859:
864:
854:
740:
683:
Arthropoda I - Arthropoda
General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha
826:
203:
778:
316:
247:
191:
132:
831:
436:
818:
787:
690:
653:
416:
372:
336:
107:
20:
116:
848:
179:
71:
792:
713:
772:
46:
763:
654:"Burgess shale-type fossils in Cambrian sandstones of the Holy Cross Mountains"
588:
91:
56:
431:
413:
396:
298:
167:
155:
96:
40:
569:
AHLBERG, P., 1989. Cambrian stratigraphy of the NĂ€r 1 deep well, Gotland.
757:
295:
86:
81:
66:
61:
51:
473:
408:) the genae lack spines and are only slightly angular posterolaterally.
805:
532:
487:
306:
302:
233:
101:
76:
143:
734:
552:
LINNARSSON, G., 1877. Om faunan i lagren med
Paradoxides ölandicus.
313:
is a common trilobite mainly from central Europe (Czech
Republic).
361:
Linnarsson, 1877, is widely distributed in the âOelandicus Bedsâ (
315:
291:
738:
727:
395:
is approximately oval in shape and markedly convex. It has
747:
533:"Trilobites of the Jince Formation, Czech Republic"
571:Geologiska Föreningens i Stockholm Förhandlingar
554:Geologiska Föreningens i Stockholm Förhandlingar
383:-zones, near BrzechĂłw, Holy Cross Mountains).
8:
127:, Cambrian, Jince Formation, Czech Republic
676:
674:
589:"The Middle Cambrian paradoxidid trilobite
735:
115:
27:
419:and the pygidium is 4Ă wider than long.
375:of Poland (SĆowiec Sandstone Formation,
339:of the Czech Republic, Jince Formation,
587:RUSHTON, A. W. A.; WEIDNER, T. (2007).
449:
404:), whereas in the most common species (
371:(Samsonowicz, 1959) is known from the
305:species inhabiting deep, poorly lit or
687:Treatise on Invertebrate Paleontology
355:Biozone of Fatka & Szabad (2014).
240:
7:
502:NachtrÀge zur Petrefactenkunde. Zw.
652:MASSIAK, M.; ĆœYLIĆSKA, A. (1994).
335:(Schlotheim, 1823) occurs in the
14:
504:Abteilung, Becker, Gotha, 114 pp.
875:Paleozoic life of New Brunswick
321:Ellipsocephalus sanctacrucensis
593:from JĂ€mtland, central Sweden"
474:"Trends in benthic trilobites"
1:
870:Fossils of the Czech Republic
661:Acta Palaeontologica Polonica
729:Trilobite info (Sam Gon III)
715:Trilobite info (Sam Gon III)
397:opistoparian facial sutures
363:Baltoparadoxides oelandicus
16:Genus of trilobites (blind)
896:
880:Cambrian genus extinctions
18:
460:. Friedrich Mauke, Jena,
434:Cambrian genera, such as
430:and some other primitive
239:
232:
133:Scientific classification
131:
123:
114:
30:
500:SCHLOTHEIM, E.F., 1823.
19:Not to be confused with
600:Acta Geologica Polonica
515:Bulletin of Geosciences
323:
827:Paleobiology Database
681:MOORE, R. C. (1959).
456:ZENKER, J. C., 1833.
377:Paradoxides insularis
341:Ellipsocephalus hoffi
319:
125:Ellipsocephalus hoffi
860:Ptychopariida genera
268:(Samsonovicz, 1959)
865:Cambrian trilobites
290:Zenker, 1833, is a
260:(Linnarsson, 1877)
246:(Schlotheim, 1823)
402:E. sanctacrucensis
369:E. sanctacrucensis
324:
265:E. sanctacrucensis
192:Ellipsocephaloidea
855:Ellipsocephalidae
842:
841:
741:Taxon identifiers
488:"Jince formation"
283:
282:
277:
269:
261:
253:
204:Ellipsocephalidae
887:
835:
834:
822:
821:
809:
808:
796:
795:
783:
782:
781:
768:
767:
766:
736:
701:
700:
678:
669:
668:
658:
649:
643:
635:
629:
622:
616:
615:
613:
611:
597:
584:
578:
567:
561:
550:
544:
543:
541:
539:
528:
522:
511:
505:
498:
492:
491:
484:
478:
477:
470:
464:
454:
276:(Pompeckj, 1895)
275:
267:
259:
251:Trilobites hoffi
245:
119:
106:
43:
36:Temporal range:
28:
895:
894:
890:
889:
888:
886:
885:
884:
845:
844:
843:
838:
830:
825:
817:
812:
804:
799:
791:
786:
779:Ellipsocephalus
777:
776:
771:
762:
761:
756:
749:Ellipsocephalus
743:
724:
710:
705:
704:
697:
680:
679:
672:
656:
651:
650:
646:
636:
632:
623:
619:
609:
607:
595:
586:
585:
581:
568:
564:
560:, pp. 352 â 375
551:
547:
537:
535:
530:
529:
525:
512:
508:
499:
495:
486:
485:
481:
472:
471:
467:
455:
451:
446:
428:Ellipsocephalus
425:
410:Ellipsocephalus
393:Ellipsocephalus
390:
373:Middle Cambrian
337:Middle Cambrian
329:
287:Ellipsocephalus
228:
225:
224:
221:Ellipsocephalus
210:
207:
206:
194:
182:
170:
158:
146:
110:
108:Middle Cambrian
105:
104:
99:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
38:
37:
34:
32:Ellipsocephalus
24:
17:
12:
11:
5:
893:
891:
883:
882:
877:
872:
867:
862:
857:
847:
846:
840:
839:
837:
836:
823:
810:
797:
784:
769:
753:
751:
745:
744:
739:
733:
732:
723:
722:External links
720:
719:
718:
709:
706:
703:
702:
695:
670:
644:
630:
628:, pp. 521 â 4.
617:
579:
562:
545:
531:S.M. GON III.
523:
506:
493:
479:
465:
448:
447:
445:
442:
424:
421:
389:
386:
385:
384:
366:
356:
328:
325:
281:
280:
279:
278:
270:
262:
254:
237:
236:
230:
229:
226:
218:
216:
212:
211:
208:
202:
200:
196:
195:
190:
188:
184:
183:
178:
176:
172:
171:
166:
164:
160:
159:
154:
152:
148:
147:
142:
140:
136:
135:
129:
128:
121:
120:
112:
111:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
44:
35:
21:Elliptocephala
15:
13:
10:
9:
6:
4:
3:
2:
892:
881:
878:
876:
873:
871:
868:
866:
863:
861:
858:
856:
853:
852:
850:
833:
828:
824:
820:
815:
811:
807:
802:
798:
794:
789:
785:
780:
774:
770:
765:
759:
755:
754:
752:
750:
746:
742:
737:
731:
730:
726:
725:
721:
717:
716:
712:
711:
707:
698:
696:0-8137-3015-5
692:
688:
684:
677:
675:
671:
667:(4): 329â340.
666:
662:
655:
648:
645:
641:
634:
631:
627:
621:
618:
605:
601:
594:
592:
591:Hydrocephalus
583:
580:
576:
572:
566:
563:
559:
555:
549:
546:
534:
527:
524:
520:
516:
510:
507:
503:
497:
494:
489:
483:
480:
475:
469:
466:
463:
459:
453:
450:
443:
441:
439:
438:
433:
429:
422:
420:
418:
415:
411:
407:
403:
398:
394:
387:
382:
378:
374:
370:
367:
364:
360:
357:
354:
350:
349:Rejkocephalus
346:
342:
338:
334:
331:
330:
326:
322:
318:
314:
312:
308:
304:
301:, comprising
300:
297:
293:
289:
288:
274:
271:
266:
263:
258:
255:
252:
249:
244:
241:
238:
235:
231:
223:
222:
217:
214:
213:
209:Matthew, 1887
205:
201:
198:
197:
193:
189:
186:
185:
181:
180:Ptychopariida
177:
174:
173:
169:
165:
162:
161:
157:
153:
150:
149:
145:
141:
138:
137:
134:
130:
126:
122:
118:
113:
109:
103:
98:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
42:
39:510â499
33:
29:
26:
22:
748:
728:
714:
682:
664:
660:
647:
639:
633:
625:
620:
608:. Retrieved
606:(4): 391â401
603:
599:
590:
582:
574:
570:
565:
557:
553:
548:
536:. Retrieved
526:
518:
514:
509:
501:
496:
482:
468:
461:
457:
452:
435:
427:
426:
409:
405:
401:
392:
391:
380:
376:
368:
362:
359:E. polytomus
358:
352:
348:
344:
340:
332:
327:Distribution
320:
310:
286:
285:
284:
272:
264:
257:E. polytomus
256:
250:
242:
227:Zenker, 1833
220:
219:
124:
31:
25:
773:Wikispecies
432:micropygous
388:Description
345:Paradoxides
273:E. vetustus
849:Categories
642:, 525 â 9.
577:, 137â148.
538:19 October
521:, 413â429.
444:References
353:Lingulella
309:habitats.
187:Suborder:
156:Arthropoda
437:Bailiella
423:Behaviour
299:trilobite
294:of blind
168:Trilobita
139:Kingdom:
764:Q3723539
758:Wikidata
610:30 March
417:segments
414:thoracic
406:E. hoffi
381:P. pinus
333:E. hoffi
311:E. hoffi
296:Cambrian
243:E. hoffi
199:Family:
151:Phylum:
144:Animalia
819:1013004
806:4635081
708:Sources
412:has 12
307:aphotic
303:benthic
234:Species
215:Genus:
175:Order:
163:Class:
693:
832:20479
814:IRMNG
793:634BZ
657:(PDF)
596:(PDF)
292:genus
801:GBIF
691:ISBN
612:2013
540:2012
379:and
47:Preê
788:CoL
575:111
851::
829::
816::
803::
790::
775::
760::
685:.
673:^
665:39
663:.
659:.
604:57
602:.
598:.
573:,
556:,
519:88
517:,
462:67
351:)â
97:Pg
41:Ma
699:.
640:7
626:7
614:.
558:3
542:.
490:.
476:.
347:(
343:â
248:=
102:N
92:K
87:J
82:T
77:P
72:C
67:D
62:S
57:O
52:ê
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
