Gryphaeidae
The Gryphaeidae, common name the foam oysters or honeycomb oysters, are a family of marine bivalve mollusks. This family of bivalves is very well represented in the fossil record, however the number of living species is very few.
| Gryphaeidae Temporal range: | |
|---|---|
| Specimens of Gryphaea articulata from the Jurassic of France | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Ostreida |
| Superfamily: | Ostreoidea |
| Family: | Gryphaeidae Vyalov, 1936 |
| Genera | |
|
See text | |
All species have shells cemented to a substrate. Shells are considered brittle, inequivalve, with the left, lower (cemented) valve convex and the right (upper, non-cemented) valve flat or slightly concave.
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