Pseudoperna

Pseudoperna Temporal range: Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Ostreida
Family:	Ostreidae
Subfamily:	incertae sedis
Genus:	†Pseudoperna Logan, 1899[1]
Species[3]
†Pseudoperna lapillicola (Marwick, 1926)[2] †Pseudoperna rugosa Logan, 1899

Pseudoperna is a genus of extinct very small oysters. Pseudoperna lived in tight groups. This small oyster is commonly found attached in groups to the shell of large species such as Inoceramus.[4] Pycnodonte and Pseudoperna are preserved mostly as calcitic valves and are also found attached to Mytiloides.[5]

References

1. Logan, W. N. (1899). Some additions to the Cretaceous invertebrates of Kansas. Kansas University Quarterly. 8 (2): 87–98. page(s): 95
2. Marwick, J. (1926). Cretaceous fossils from Waipu Subdivision. New Zealand Journal of Science and Technology. 8: 379–382. page(s): 381
3. MolluscaBase eds. (2024). MolluscaBase. Pseudoperna Logan, 1899 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1541556 on 25 July 2024
4. "Common Fossils of Kansas – Pearl Clams, Oysters, Scallops". Kansas Geological Survey. Retrieved 6 March 2012.
5. "Stratigraphy of the Greenhorn Limestone". Kansas Geological Survey. Retrieved 6 March 2012.

Further reading

• H. E. Vokes. 1980. Genera of the Bivalvia: a systematic and bibliographic Catalogue. Genera of the Bivalvia: a systematic and bibliographic Catalogue