// Workers AI · dad joke modeWhat did Cheirothyris say? "I'm a little shell-shocked.
| Cheirothyris Temporal range: Upper Jurassic | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Brachiopoda |
| Class: | Rhynchonellata |
| Order: | Terebratulida |
| Family: | Zeilleriidae |
| Genus: | †Cheirothyris |
Cheirothyris is a genus of fossil brachiopod from the Upper Jurassic period. The shells of this genus are characterised by four, high, radially arranged ribs on each valve. On the anterior edge of the valves the ribs protrude like fingers, so that the shells look like the webbed feet of birds from above.[1] Cheirothyris fleuriausa is one of the largest reported specimens measuring about 3 cm.
References
[edit]- ↑ Ivanov, Hrdlickova & Gregorova (2001) The Complete Encyclopedia of Fossils: A Comprehensive guide to Fossils from around the world Rebo Publishers, The Nederlands. pp. 312 ISBN 90-366-1500-3
_silhouette.svg){kind=small} | This protostome-related article is a stub. You can help Wikipedia by adding missing information. |