Hyotissa semiplana
Hyotissa semiplana is an extinct species of large saltwater oysters, a fossil marine bivalve mollusk in the family Gryphaeidae, the foam oysters[1]
Hyotissa semiplana | |
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Fossil shells of Hyotissa semiplana from Maastrichtian age, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Order: | Ostreida |
Family: | Gryphaeidae |
Genus: | Hyotissa |
Species: | H. semiplana |
Binomial name | |
Hyotissa semiplana (de Sowerby, 1825) | |
Synonyms | |
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Description
Fossil shells of Hyotissa semiplana can reach a diameter of about 60 millimetres (2.4 in).[2] They have thick-walled valves, with rough, nodose surface.[3][4]
Distribution
Fossils of this species have been found in the Campanian-Maestrichtian of Poland, in the Santonian-Maestrichtian of Europe and North Africa and in the Campanian of South India.[3][5]
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gollark: (Was on clipboard)
References
- Universal Biological Indexer
- Kreidemuseum
- HALINA PUGACZEWSKA THE UPPER CRETACEOUS OSTREIDAE FROM THE MIDDLE VISTULA REGION (POLAND
- Anne Mehlin Sørensena, Finn Surlyka, John W.M. Jag Adaptive morphologies and guild structure in a high-diversity bivalve faunafrom an early Campanian rocky shore, Ivö Klack (Sweden)
- ANAND K. JAITLY and SANJAY K. MISHRA DISCOVERY OF THE OYSTER HYOTISSA SEMIPLANA (SOWERBY, 1813) FROM THE CAMPANIAN (LATE CRETACEOUS) OF SOUTH INDIA
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