Chione craspedonia
| Chione craspedonia Temporal range: | |
|---|---|
 | |
| William Dall's original illustration of Chione craspedonia | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Venerida |
| Family: | Veneridae |
| Genus: | Chione |
| Species: | C. craspedonia |
| Binomial name | |
| Chione craspedonia Dall, 1903 | |
Chione craspedonia is a species of extinct bivalve from the Late Eocene of Florida, Louisiana,[1] Georgia, and Mississippi. It is found in the Crystal River Formation[2] of Florida and was described by William Healey Dall.[3]
Evolutionary history
Chione craspedonia is the oldest known species of Chione, first appearing in late Eocene deposits. It was a common species of the western Atlantic in Mississippi and Florida. During the terminal Eocene, a bolide struck what is now Chesapeake Bay. This led to an extinction event of local species on what is now the US East Coast. Survivors diversified to fill now vacant niches, among them being the common Chione craspedonia.[4]
References
- ↑ Rukas, Justin M.; Gooch, D. David (1939). "Exposures of Vicksburg Oligocene Fauna in Western Louisiana: GEOLOGICAL NOTES". AAPG Bulletin. 23 (2): 246–250. ISSN 0149-1423.
- ↑ Nicol, David; Jones, Douglas S. (1984). "Chione (Chione) Craspedonia Dall in the Crystal River Formation (Eocene) in Peninsular Florida". Tulane Studies in Geology and Paleontology. 18 (2).
- ↑ Dall, William Healey (1887). Transactions of the Wagner Free Institute of Science of Philadelphia. Vol. 3. Wagner Free Institute of Science of Philadelphia.
- ↑ Hansen, Thor A. (1987-02-01). "Extinction of late Eocene to Oligocene molluscs; relationship to shelf area, temperature changes, and impact events". PALAIOS. 2 (1): 69–75. doi:10.2307/3514573. ISSN 1938-5323.