Jump to content

Hyotissa semiplana

From Wikipedia, the free encyclopedia

This is the current revision of this page, as edited by ShortDescBot (talk | contribs) at 08:36, 3 March 2021 (ShortDescBot adding short description "Extinct species of bivalve"). The present address (URL) is a permanent link to this version.

(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

Hyotissa semiplana
Temporal range: Late Cretaceous
Fossil shells of Hyotissa semiplana from Maastrichtian age, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Gryphaeidae
Genus: Hyotissa
Species:
H. semiplana
Binomial name
Hyotissa semiplana
(de Sowerby, 1825)
Synonyms
  • Pycnodonte semiplana

Hyotissa semiplana is an extinct species of large saltwater oysters, a fossil marine bivalve mollusk in the family Gryphaeidae, the foam oysters[1]

Description

[edit]

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

[edit]

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]

References

[edit]