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.[1] Pycnodonte and Pseudoperna are preserved mostly as calcitic valves and are also found attached to Mytiloides.[2]
References
- ^ "Common Fossils of Kansas – Pearl Clams, Oysters, Scallops". Kansas Geological Survey. Retrieved 6 March 2012.
- ^ "Stratigraphy of the Greenhorn Limestone". Kansas Geological Survey. Retrieved 6 March 2012.