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167:
has a coiled, costate shell with a perforate (see-through) umblilcus; whorls are dorsally impressed by end of first volution but loosen in the adult stage with the mature body chamber diverging from the adjacent whorl. Costae (ribs) slope dorso-ventrally toward the apex and sutures are straight or
213:
Rousseau H. Flower, 1984. Bodeiceras; a New
Mohawkian Oxycone, with Revision of the Older Barrandeocerida and Discussion of the Status of the Order. Journal of Paleontology v. 58, no.6, pp 1372–1379, Nov.
339:
275:
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that lived during the Middle and Late
Ordovician. It has been found widespread in the Middle and Upper Ordovician of North America.
334:
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have lateral lobes. The siphuncle is subventral, orthochoanitic with short, straight necks and thin connecting rings.
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Part K Mollusca 3. Geological
Society of America and University of Kansas Press.
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217:Walter C Sweet, 1964 Nautiloidea-Barrandeocerida;
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198:with its subcentral siphuncle possibly from
188:with its subventral siphuncle possibly from
225:
20:
340:Ordovician cephalopods of North America
219:Treatise on Invertebrate Paleontology
157:included in the tarphycerid suborder
7:
345:Middle Ordovician first appearances
14:
180:are both likely derived from the
42:
1:
330:Prehistoric nautiloid genera
29:Temporal range: Mid to Late
350:Late Ordovician extinctions
376:
355:Paleozoic life of Nunavut
39:Scientific classification
37:
23:
335:Ordovician cephalopods
302:Paleobiology Database
174:and its contemporary
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289:Open Tree of Life
231:Taxon identifiers
201:Centrotarphyceras
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16:Genus of molluscs
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182:Tarphyceratidae
159:Barrandeocerina
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122:Plectoceratidae
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196:Barrandeoceras
191:Campbelloceras
177:Barrandeoceras
153:is a genus of
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360:Tarphycerida
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109:Tarphycerida
24:
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239:Plectoceras
186:Plectoceras
172:Plectoceras
165:Plectoceras
150:Plectoceras
136:Plectoceras
96:Nautiloidea
86:Cephalopoda
25:Plectoceras
324:Categories
208:References
155:nautiloids
141:Hyatt,1884
92:Subclass:
31:Ordovician
62:Kingdom:
56:Eukaryota
254:Q7204383
248:Wikidata
115:Family:
76:Mollusca
72:Phylum:
66:Animalia
52:Domain:
294:2868889
281:1409866
268:4622248
128:Genus:
102:Order:
82:Class:
307:13426
276:IRMNG
214:1984.
263:GBIF
326::
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204:.
194:,
184:;
132:†
119:†
106:†
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