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207:, is based in an internal mold of a body chamber on which the position of the siphuncle is indiscernible (Sweet 1964,) Species referred to Cycloceras are annulated, subcylindrical orthocones with no longitudinal ornamentation . Fig 186, p K258 Teichert
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with a narrow subcentral siphuncle. Annuli (circular transverse bands or costae) are thick and close spaced, giving a corrugated appearance.
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of
Western Europe, (Ireland and Scotland) of unknown affinity with the Orthocerida.
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C. Teichert et al 1964. Treatise on
Invertebrate Paleontology K(3)Nautiloidea:1-519
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175:was named by McCoy (1844 and assigned to the
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183:by Sweet in Teichert et al. (1964);
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434:Taxa named by Frederick McCoy
429:Fossil taxa described in 1844
409:Prehistoric animals of Europe
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399:Prehistoric nautiloid genera
352:. You can help Knowledge by
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179:by Flower (1962)and to the
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16:Extinct genus of nautiloids
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419:Paleozoic life of Nunavut
414:Paleozoic life of Ontario
404:Carboniferous cephalopods
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59:Scientific classification
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348:-related article is a
261:PaleoBiology Database:
311:Paleobiology Database
199:The type species of
52:Cranoceras depressum
237:Paleontology portal
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279:Taxon identifiers
177:Michelinoceratida
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439:Cephalopod stubs
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424:Orthocerida
265:,basic info
181:Orthocerida
119:Orthocerida
106:Cephalopoda
393:Categories
346:cephalopod
287:Cycloceras
263:Cycloceras
223:References
213:Cycloceras
201:Cycloceras
195:Morphology
185:Cycloceras
173:Cycloceras
158:cephalopod
150:Cycloceras
133:Cycloceras
31:Ordovician
25:Cycloceras
217:orthocone
155:nautiloid
82:Kingdom:
76:Eukaryota
302:Q5198683
296:Wikidata
168:Taxonomy
96:Mollusca
92:Phylum:
86:Animalia
72:Domain:
125:Genus:
112:Order:
102:Class:
35:Permian
209:et al.
141:, 1844
344:This
316:12485
139:M'Coy
350:stub
395::
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203:,
191:.
381:e
374:t
367:v
356:.
129:†
116:†
33:-
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