Provanna
| Provanna Temporal range: | |
|---|---|
| Provanna hirokoae | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Superfamily: | Abyssochrysoidea |
| Family: | Provannidae |
| Genus: | Provanna Dall, 1918 |
| Type species | |
| Trichotropis (Provanna) lomana Dall, 1918 | |
| Synonyms | |
|
Trichotropis (Provanna) Dall, 1918 (original rank) | |
Provanna is a genus of sea snails, marine gastropod mollusks in the family Provannidae.
The species was named after Dall's first wife.
This is a very old genus with species already existing in Cretaceous seep deposits off Japan (93 - 100 million years ago). The Caribbean and the Pacific fauna were isolated about 3 million years ago by the closure of the Central American Isthmus.