Isognomon
(For the tree oyster mushroom, see Pleurotus ostreatus.)
| Isognomon Temporal range: | |
|---|---|
| Live Isognomon sp. under a rock in Kona District, Hawaii | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Pteriida |
| Family: | Isognomonidae |
| Genus: | Isognomon Lightfoot, 1786 |
| Type species | |
| Ostrea perna Linnaeus, 1767 | |
| Species | |
|
See text | |
| Synonyms | |
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Isognomon is a genus of marine bivalve mollusks which is related to the pearl oysters.
Isognomon is known in the fossil record from the Permian period to the Quaternary period (age range: 254.0 to 0.012 million years ago). Fossils of species within this genus have been found all over the world.