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with very simplified sutures and a tendency to lose their ornamentation. Shells are generally evolute, more or less compressed, with rounded venters. Ornamentation if present consists of umbilical ribs that disappear outwardly, toward the venter. The suture is ceratitic or goniatitic.
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250:, whereas E. T. Tozer in 1981 includes them in the
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244:Treatise on Invertebrate Paleontology, Part L
325:Paleobiology Database Aplococeratidae entry
257:Genera included in the Aplococeratidae are
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246:included the Aplococeraitdae in the
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462:. You can help Knowledge by
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529:Middle Triassic extinctions
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16:Extinct family of molluscs
524:Anisian first appearances
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101:Scientific classification
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327:accessed 9 December 2011
458:-related article is a
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27:Temporal range:
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187:Danubitoidea
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260:Aplococeras
204:Spath, 1951
148:Cephalopoda
503:Categories
456:Ceratitida
303:References
228:ceratitids
174:Ceratitida
161:Ammonoidea
154:Subclass:
296:Velebites
278:Laboceras
230:from the
216:See text
124:Kingdom:
118:Eukaryota
360:Q4779998
354:Wikidata
313:Arkell,
263:(type),
193:Family:
138:Mollusca
134:Phylum:
128:Animalia
114:Domain:
413:4956317
387:3245957
308:Sources
238:Arkell
210:Genera
167:Order:
144:Class:
400:113648
293:, and
240:et al.
454:This
426:86689
395:IRMNG
315:et al
460:stub
382:GBIF
35:PreꞒ
374:6KQ
369:CoL
505::
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85:Pg
491:e
484:t
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319:L
197:†
184:†
171:†
158:†
90:N
80:K
75:J
70:T
65:P
60:C
55:D
50:S
45:O
40:Ꞓ
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