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portion sometime during its life, somewhat resembling earlier ascocerids, with siphuncle segments that became gradually more expanded during growth. Nothing is known of the animal itself.
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R. H. Flower. 1962. Notes on the
Michelinoceratida. State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, Memoir 10, Part II
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had a slender, very gently curved shell with a natural truncation where it discarded the
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to the ascocerid lineage however, and based on closer affinities, it was assigned to the
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by Miller (1932) who, along with Flower (1941) regarded it as belonging to the
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Chaonoceratidae was named as the family for its sole member
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265:(Smithsonian Handbooks) by David Ward
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200:. It became impossible to trace
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465:Prehistoric nautiloid families
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485:Prehistoric animals of Europe
177:, existing for approximately
470:Monogeneric mollusc families
418:. You can help Knowledge by
165:that lived in what would be
27:Temporal range: Mid Silurian
500:Prehistoric nautiloid stubs
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490:Silurian first appearances
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150:is a small, mono-generic,
16:Extinct family of molluscs
43:Scientific classification
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414:-related article is a
377:Paleobiology Database
242:PaleoBiology Database
480:Silurian extinctions
173:from 428.2 to 426.2
279:Paleontology portal
169:during the middle
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410:This prehistoric
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364:Open Tree of Life
291:Taxon identifiers
206:Michelinoceratida
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475:Silurian animals
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182:million years
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161:in the order
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323:Wikispecies
217:Choanoceras
202:Choanoceras
194:Choanoceras
163:Orthocerida
159:cephalopods
154:of extinct
134:Choanoceras
103:Orthocerida
90:Cephalopoda
459:Categories
227:References
212:Morphology
198:Ascocerida
412:nautiloid
66:Kingdom:
60:Eukaryota
314:Q5103417
308:Wikidata
188:Taxonomy
171:Silurian
109:Family:
80:Mollusca
76:Phylum:
70:Animalia
56:Domain:
369:2871287
343:4621221
263:Fossils
126:Genus:
96:Order:
86:Class:
382:127820
356:111545
221:apical
167:Europe
152:family
351:IRMNG
416:stub
338:GBIF
146:The
175:mya
461::
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247:^
184:.
447:e
440:t
433:v
422:.
180:2
130:†
113:†
100:†
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