Pseudoperna congesta
|
Pseudoperna Temporal range: Cretaceous |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Ostreoida |
| Family: | Ostreidae |
| Subfamily: | Lophinae |
| Genus: |
Pseudoperna Logan, 1899 |
Pseudoperna is a genus of extinct very small oysters. Pseudoperna live in tight groups. This small oyster is commonly found attached in groups to the shell of large species such as Inoceramus.Pycnodonte and Pseudoperna are preserved mostly as calcitic valves and are also found attached to Mytiloides.
...
Wikipedia