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with an open umbilicus; body chamber smooth with a terminal constriction. The chambered phragmocone is finely ribbed. Coiling is eccentric, a character of the family.
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W.J Arkell et al. 1957. Mesozoic
Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press.
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269:"A compendium of fossil marine animal genera (Cephalopoda entry)"
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224:is an extinct cephalopod genus included in the
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302:"Paleobiology Database - Labyrinthoceras"
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498:Fossil taxa described in 1919
246:is described as large, round-
441:. You can help Knowledge by
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107:Scientific classification
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279:: 1β560. Archived from
267:Sepkoski, Jack (2002).
437:-related article is a
400:Paleobiology Database
508:Stephanoceratoidea
488:Jurassic ammonites
234:Stephanoceratoidea
503:Ammonitida genera
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387:Open Tree of Life
329:Taxon identifiers
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26:Temporal range:
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305:. Retrieved
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154:Cephalopoda
482:Categories
307:2017-10-19
287:2017-10-18
254:References
180:Ammonitida
167:Ammonoidea
160:Subclass:
130:Kingdom:
124:Eukaryota
435:ammonite
346:Wikidata
226:ammonoid
186:Family:
144:Mollusca
140:Phylum:
134:Animalia
120:Domain:
29:Bajocian
392:2872592
379:1020897
366:4626997
352:Q763112
248:whorled
228:family
199:Genus:
173:Order:
150:Class:
95:↓
433:This
405:15093
374:IRMNG
439:stub
361:GBIF
34:Preκ
277:363
484::
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84:Pg
470:e
463:t
456:v
445:.
310:.
290:.
203:β
190:β
177:β
164:β
89:N
79:K
74:J
69:T
64:P
59:C
54:D
49:S
44:O
39:κ
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