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is generally involute with compressed whorls that are much higher than wide, flattened sides, narrowly rounded ventral rim, and sutures with wide low saddles and simple serrated lobes.
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has also been reported from Canada, the United States, Russia, Australia, Afghanistan, and
Malaysia.
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201:
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351:. Ceratitids are ammonoid cephalopods, mostly from the Triassic but with ancestral forms in the
130:
110:
550:
532:
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355:. Meekocerataceae sometimes appears as Meekoceratoidea to conform with a recent ruling of the
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341:
264:
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311:
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409:
Hansen, Bitten Bolvig; Bucher, Hugo; Schneebeli-Hermann, Elke; Hammer, Øyvind (2021).
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representing a morphologically divergent end member of the lineage.
322:
of
Spitsbergen, though a restudy concluded that only one species,
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415:: conch morphology and ornamentation in relation to stratigraphy"
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with a moderately narrow discoidal shell and ceratitic
481:
340:is the type genus of the Arctoceratidae which is a
344:in the Meekocerataceae, a superfamily within the
124:New Mexico Museum of Natural History and Science
411:"The middle Smithian (Early Triassic) ammonoid
318:). Up to seven species were described from the
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8:
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109:
20:
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392:Arkell et al 1957, Mesozoic Ammonoidea,
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396:Part L, R.C. Moore (ed), p L142 -L145
394:Treatise on Invertebrate Paleontology
7:
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584:. You can help Knowledge (XXG) by
14:
460:Paleobiology Database -Arctoceras
568:
359:regarding superfamily endings.
306:, 1865) was described from the
1:
677:
651:Ammonites of North America
563:
16:Genus of molluscs (fossil)
131:Scientific classification
129:
117:
108:
23:
636:Early Triassic ammonites
422:Papers in Palaeontology
646:Ammonites of Australia
580:-related article is a
413:Arctoceras blomstrandi
324:Arctoceras blomstrandi
546:Paleobiology Database
367:Apart from Svalbard,
320:Vikinghøgda Formation
434:2021PPal....7.1435H
314:) of Spitsbergen (
300:Arctoceras polaris
656:Ammonites of Asia
631:Ceratitida genera
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592:
561:
560:
533:Open Tree of Life
475:Taxon identifiers
443:10.1002/spp2.1348
326:, is valid, with
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668:
661:Ceratitida stubs
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428:(3): 1435–1457.
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298:. The genotype
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29:Temporal range:
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202:Meekocerataceae
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641:Olenekian life
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328:A. blomstrandi
312:Early Triassic
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283:Classification
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261:Lower Triassic
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214:Arctoceratidae
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292:Alpheus Hyatt
290:was named by
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275:The shell of
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586:expanding it
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304:Mojsisovics
166:Cephalopoda
625:Categories
578:Ceratitida
483:Arctoceras
375:References
369:Arctoceras
363:Occurrence
349:Ceratitida
338:Arctoceras
288:Arctoceras
277:Arctoceras
271:Appearance
245:Arctoceras
227:Arctoceras
190:Ceratitida
178:Ammonoidea
173:Subclass:
120:Arctoceras
118:Fossil of
25:Arctoceras
259:from the
257:ammonoids
254:ceratitid
137:Kingdom:
32:Olenekian
498:Q4787613
492:Wikidata
462:12/10/09
332:costatus
316:Svalbard
308:Smithian
209:Family:
154:Mollusca
149:Phylum:
142:Animalia
538:6344282
525:3248689
430:Bibcode
221:Genus:
185:Order:
161:Class:
122:at the
98:↓
342:family
265:suture
236:, 1900
576:This
551:14032
418:(PDF)
346:order
330:var.
250:genus
248:is a
234:Hyatt
582:stub
520:GBIF
512:32BZ
357:ICZN
296:1900
37:PreꞒ
507:CoL
438:doi
294:in
252:of
627::
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452:^
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383:^
267:.
87:Pg
613:e
606:t
599:v
588:.
446:.
440::
432::
426:7
310:(
302:(
92:N
82:K
77:J
72:T
67:P
62:C
57:D
52:S
47:O
42:Ꞓ
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