44:
500:
570:
565:
459:
336:
541:
369:
McCobb, L.M.E.; Boyce, W.D.; Knight, I.; Stouge, S. (2014). "Lower
Ordovician trilobites from the Septembersø formation, North-East Greenland".
575:
580:
43:
534:
585:
348:
560:
527:
414:
472:
446:
378:
394:
288:
127:
114:
38:
477:
464:
296:
511:
386:
382:
303:
which lasted from approximately 478 to 471 million years ago, in marine strata of the
554:
398:
304:
499:
300:
153:
390:
437:
312:
284:
88:
75:
55:
507:
431:
281:
101:
308:
292:
65:
30:
408:
451:
412:
337:"A compendium of fossil marine animal genera (Trilobita entry)"
515:
421:
535:
330:
328:
291:. Species lived during the early part of the
8:
571:Paleozoic life of Newfoundland and Labrador
542:
528:
409:
20:
324:
566:Ordovician trilobites of North America
7:
496:
494:
514:. You can help Knowledge (XXG) by
341:Bulletins of American Paleontology
14:
498:
42:
1:
391:10.1080/03115518.2014.951913
602:
493:
206:Adrain & Westrop, 2005
576:Paleozoic life of Nunavut
226:Fortey & Bruton, 2013
177:
172:
159:
152:
39:Scientific classification
37:
23:
581:Paleozoic life of Quebec
335:Sepkoski, Jack (2002).
510:-related article is a
29:Temporal range: Early
473:Paleobiology Database
347:: 560. Archived from
383:2014Alch...38..575M
16:Genus of trilobites
182:B. angustisulcatus
523:
522:
488:
487:
415:Taxon identifiers
297:Ordovician Period
273:
272:
267:
257:
247:
237:
232:B. jeffersonensis
227:
217:
207:
197:
187:
148:
593:
586:Librostoma stubs
544:
537:
530:
502:
495:
481:
480:
468:
467:
455:
454:
442:
441:
440:
410:
403:
402:
366:
360:
359:
357:
356:
332:
265:
255:
245:
235:
225:
215:
212:B. groenlandicus
205:
202:B. ellesmerensis
196:(Billings, 1865)
195:
185:
162:Bathyurus seelyi
146:
139:
126:
113:
100:
87:
47:
46:
21:
601:
600:
596:
595:
594:
592:
591:
590:
561:Proetida genera
551:
550:
549:
548:
491:
489:
484:
476:
471:
463:
458:
450:
445:
436:
435:
430:
417:
407:
406:
368:
367:
363:
354:
352:
334:
333:
326:
321:
168:
167:Whitfield, 1886
165:
147:Whitfield, 1890
145:
137:
124:
111:
98:
85:
41:
33:
27:
17:
12:
11:
5:
599:
597:
589:
588:
583:
578:
573:
568:
563:
553:
552:
547:
546:
539:
532:
524:
521:
520:
503:
486:
485:
483:
482:
469:
456:
443:
427:
425:
419:
418:
413:
405:
404:
377:(4): 575–598.
361:
323:
322:
320:
317:
287:in the family
280:is a genus of
271:
270:
269:
268:
258:
256:Cullison, 1944
248:
238:
236:Cullison, 1944
228:
218:
208:
198:
188:
175:
174:
173:Other species
170:
169:
166:
157:
156:
150:
149:
135:
131:
130:
122:
118:
117:
109:
105:
104:
96:
92:
91:
83:
79:
78:
73:
69:
68:
63:
59:
58:
53:
49:
48:
35:
34:
28:
15:
13:
10:
9:
6:
4:
3:
2:
598:
587:
584:
582:
579:
577:
574:
572:
569:
567:
564:
562:
559:
558:
556:
545:
540:
538:
533:
531:
526:
525:
519:
517:
513:
509:
504:
501:
497:
492:
479:
474:
470:
466:
461:
457:
453:
448:
444:
439:
433:
429:
428:
426:
424:
423:Bolbocephalus
420:
416:
411:
400:
396:
392:
388:
384:
380:
376:
372:
365:
362:
351:on 2006-09-05
350:
346:
342:
338:
331:
329:
325:
318:
316:
314:
310:
306:
305:United States
302:
298:
294:
290:
286:
283:
279:
278:
277:Bolbocephalus
264:
263:
259:
254:
253:
249:
244:
243:
239:
234:
233:
229:
224:
223:
219:
216:Poulsen, 1937
214:
213:
209:
204:
203:
199:
194:
193:
189:
186:Poulsen, 1927
184:
183:
179:
178:
176:
171:
164:
163:
158:
155:
151:
144:
143:
142:Bolbocephalus
136:
133:
132:
129:
123:
120:
119:
116:
110:
107:
106:
103:
97:
94:
93:
90:
84:
81:
80:
77:
74:
71:
70:
67:
64:
61:
60:
57:
54:
51:
50:
45:
40:
36:
32:
26:
25:Bolbocephalus
22:
19:
516:expanding it
505:
490:
422:
374:
370:
364:
353:. Retrieved
349:the original
344:
340:
301:faunal stage
293:Arenig stage
276:
275:
274:
261:
260:
251:
250:
241:
240:
231:
230:
221:
220:
211:
210:
201:
200:
191:
190:
181:
180:
161:
160:
154:Type species
141:
140:
24:
18:
289:Bathyuridae
266:Boyce, 1989
262:B. stevensi
252:B. stclairi
246:Boyce, 1989
192:B. convexus
128:Bathyurinae
121:Subfamily:
115:Bathyuridae
555:Categories
371:Alcheringa
355:2008-01-12
319:References
285:trilobites
242:B. kindlei
222:B. gunnari
76:Arthropoda
399:129962497
313:Greenland
89:Trilobita
62:Kingdom:
56:Eukaryota
508:Proetida
438:Q4938999
432:Wikidata
108:Family:
102:Proetida
72:Phylum:
66:Animalia
52:Domain:
465:1144010
452:4320460
379:Bibcode
295:of the
282:proetid
134:Genus:
95:Order:
82:Class:
397:
311:, and
309:Canada
31:Arenig
506:This
478:21098
460:IRMNG
395:S2CID
512:stub
299:, a
447:EoL
387:doi
345:364
557::
475::
462::
449::
434::
393:.
385:.
375:38
373:.
343:.
339:.
327:^
315:.
307:,
543:e
536:t
529:v
518:.
401:.
389::
381::
358:.
138:†
125:†
112:†
99:†
86:†
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
