Cyrtoceras
From Infogalactic: the planetary knowledge core
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Cyrtoceras
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Cyrtoceras is an extinct genus of oncoceridan nautiloid that lived from the middle Ordovician to the middle Devonian, in Africa, Europe, North America, and South America.
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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
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Categories:
- Articles with dead external links from July 2012
- Cephalopod genera
- Devonian cephalopods
- Nautiloids
- Ordovician cephalopods
- Paleozoic cephalopods of Africa
- Paleozoic cephalopods of Europe
- Paleozoic cephalopods of North America
- Paleozoic cephalopods of South America
- Silurian cephalopods
- Cambrian first appearances
- Middle Devonian extinctions
- Nautiloid stubs
