Opertochasma cuneatum
UNB-2018-0708Fossils » Eukaryote » Animalia » Mollusca » Bivalvia
Description
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Autobranchia
Order: Pholadida
Family: Pholadidae
Genus: Opertochasma (Stephenson, 1953)
Species: Opertochasma cuneatum (Meek and Hayden, 1858)
Small right valve embedded on the sediment. Faint growth lines. Triangular umbo. Rounded, elongated ventral margin and triangular dorsal margin.
Specifications
| Object name | Opertochasma cuneatum |
|---|---|
| ID | UNB-2018-0708 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Mollusca Class: Bivalvia |
| Composition | Limestone |
| Age | Eon: Phanerozoic Era: Mesozoic Period: Cretaceous |
| Numeric age | 145 Mya |
| Origin | Custer County, Montana, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
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