Pterotrigonia is an extinct genus of saltwater clams, marine bivalve molluscs in the family Megatrigoniidae. This genus is known in the fossil record from the Jurassic period Tithonian age to the Cretaceous period Maastrichtian age. Species in this genus were facultatively mobile infaunal suspension feeders. The type species of the genus is Pterotrigonia cristata.

Pterotrigonia
Temporal range: Jurassic to Cretaceous
Pterotrigonia caudata fossil from the Isle of Wight at Galerie de paléontologie et d'anatomie comparée, Paris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Trigoniida
Superfamily: Megatrigonioidea
Family: Pterotrigoniidae
Genus: Pterotrigonia
van Hoepen, 1929[1]
Type species
Pterotrigonia cristata
van Hoepen, 1929
Species[2]
Synonyms[2]

Pterotrigonia thoracica was selected as the state fossil of Tennessee in 1998.

Scabrotrigonia is a subgenus of Pterotrigonia.[3][4]

Distribution

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Fossils of species within this genus have been found in the Jurassic of Antarctica, Chile and India, as well as in the Cretaceous of Angola, Antarctica, Argentina, Austria, Bulgaria, Chile, Colombia, Cuba, Ecuador, Egypt, France, Hungary, Italy, Japan, Libya, Madagascar, Mexico, Mozambique, New Zealand, Oman, Peru, Portugal, Serbia and Montenegro, South Africa, Spain, Trinidad and Tobago, Russia, Ukraine, United Arab Emirates, United Kingdom, United States and Yemen.

References

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  1. ^ van Hoepen, E. C. N. (1929). Die krytfauna van Soeloeland. 1, Trigoniidae. Paleontologiese Navorsing van die Nasionale Museum van Bloemfontein. 1(1):1–38. page(s): 9
  2. ^ a b MolluscaBase eds. (2024). MolluscaBase. Pterotrigonia van Hoepen, 1929 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=852418 Archived 15 February 2024 at the Wayback Machine on 25 July 2024
  3. ^ Tashiro, M; Matsuda, T. (1983). "A study of the Pterotrigoniae from Japan". Memoirs of the Faculty of Science, Kochi University, Series e, Geology. 4: 13–52. Archived from the original on 25 October 2021. Retrieved 25 October 2021.
  4. ^ Leanza, H.A. (1996). "Jurassic trigoniaceans from Argentina: A review". Georesearch Forum. 1: 67–78. Retrieved 25 October 2021.