Biology:Cyrtoceras
From HandWiki
Cyrtoceras is an dubious extinct genus of oncoceridan nautiloids that was used for fossils from the middle Ordovician to the middle Devonian, in Africa, Europe, North America and South America.
As for 1964, this genus is no longer considered as valid, as it has not been correctly established.[1][2]
References
- ↑ Teichert, C.; Kummel, B.; Sweet, W. C.; Stenzel, H. B.; Furnish, W. M.; Glenister, B. F.; Erben, H. K.; Moore, R. C. et al. (1964). "Cephalopoda – general features, Endoceratoidea – Actinoceratoidea – Nautiloidea – Bactritoidea In R. C. Moore (Ed.), Treatise on Invertebrate Paleontology, Part K, Mollusca 3". Lawrence: The University of Kansas Press: 1-519. https://journals.ku.edu/InvertebratePaleo/issue/view/467.
- ↑ Afhüppe, Lukas; Becker, R. Thomas (2022-09-01). "A new discosorid and some other nautiloids from the Givetian of the Rhenish Massif, Germany" (in en). Palaeobiodiversity and Palaeoenvironments 102 (3): 613–627. doi:10.1007/s12549-022-00541-3. ISSN 1867-1608. https://link.springer.com/article/10.1007/s12549-022-00541-3.
Sources
- Fossils (Smithsonian Handbooks) by David Ward
- Fossils (A Golden Guide from St. Martin's Press) by Frank H. T. Rhodes, Paul R. Shaffer, Herbert S. Zim, and Raymond Perlman
- Aquagenesis: The Origin and Evolution of Life in the Sea by Richard Ellis
External links
- Cyrtoceras in the Paleobiology Database
Wikidata ☰ Q135448 entry
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