File:Eutrephoceras Sp. (fossil Nautiloid).jpg
(public display, Cincinnati Museum of Natural History & Science, Cincinnati, Ohio, USA)
Date
Source
Eutrephoceras sp. (fossil nautiloid) 2
Author
James St. John
Nautiloids are squids-in-shells. In the Paleozoic, many forms had a straight shell, but some had loosely coiled or tightly coiled shells. Nautiloids are still alive today, but only represented by a small number of species in modern oceans - all have tightly coiled shells.
Seen here is Eutrephoceras, an extinct nautiloid with a tightly coiled shell. This genus existed from the Mesozoic to the Tertiary.
Classification: Animalia, Mollusca, Cephalopoda, Nautiloidea, Nautilida, Nautilidae
Stratigraphy: unrecorded / undisclosed
Locality: unrecorded / undisclosed
Info. at:
<a href="https://en.wikipedia.org/key/Eutrephoceras" rel="noreferrer nofollow">en.wikipedia.org/key/Eutrephoceras</a>Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/53537347057. It was reviewed on 26 February 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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