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421:(A Golden Guide from St. Martin's Press) by Frank H. T. Rhodes, Paul R. Shaffer, Herbert S. Zim, and Raymond Perlman
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336:"The Ancestry of the Cephalopoda: From Helcionella to Plectronoceras"
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For the plant species also known as
Cyrtoceras elegans, see
425:
Aquagenesis: The Origin and
Evolution of Life in the Sea
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118:Digital life restoration of "Cyrtoceras sp"
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666:Middle Ordovician genus first appearances
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385:Global Biodiversity Information Facility
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656:Paleozoic cephalopods of South America
651:Paleozoic cephalopods of North America
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561:
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579:. You can help Knowledge (XXG) by
14:
671:Middle Devonian genus extinctions
39:Middle Ordovician–Middle Devonian
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127:
676:Fossils of Georgia (U.S. state)
646:Paleozoic cephalopods of Europe
641:Paleozoic cephalopods of Africa
1:
626:Prehistoric nautiloid genera
442:in the Paleobiology Database
691:Prehistoric nautiloid stubs
412:(Smithsonian Handbooks) by
293:that lived from the middle
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681:Paleozoic life of Manitoba
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334:Teiichi KOBAYASHI (1987).
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16:Extinct genus of nautiloid
686:Paleozoic life of Nunavut
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124:Scientific classification
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490:Hoya sect. Centrostemma
636:Ordovician cephalopods
575:-related article is a
262:Cyrtoceras minneapolis
253:Cyrtoceras manitobense
231:Cyrtoceras minneapolis
538:Paleobiology Database
661:Silurian cephalopods
631:Devonian cephalopods
361:10.2183/pjab.63.135
352:1987PJAB...63..135K
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571:This prehistoric
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389:. Retrieved
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220:Type species
213:Conrad, 1838
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484:Wikispecies
288:oncoceridan
181:Nautiloidea
171:Cephalopoda
620:Categories
460:Cyrtoceras
439:Cyrtoceras
414:David Ward
391:6 November
378:Cyrtoceras
321:References
295:Ordovician
291:nautiloids
276:Cyrtoceras
208:Cyrtoceras
194:Oncocerida
177:Subclass:
32:Cyrtoceras
573:nautiloid
147:Kingdom:
141:Eukaryota
469:Wikidata
299:Devonian
161:Mollusca
157:Phylum:
151:Animalia
137:Domain:
530:4953908
517:1361203
504:8429964
475:Q135448
419:Fossils
410:Fossils
404:Sources
348:Bibcode
281:extinct
243:Species
200:Genus:
187:Order:
167:Class:
307:Europe
303:Africa
279:is an
543:12998
512:IRMNG
301:, in
284:genus
577:stub
499:GBIF
393:2021
313:and
44:PreꞒ
356:doi
286:of
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69:C
64:D
59:S
54:O
49:Ꞓ
23:.
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