Megatrigoniidae
| Megatrigoniidae Temporal range: from Jurassic to Cretaceous,
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| A fossil of Pterotrigonia caudata (Agassiz 1840) from the Isle of Wight at Galerie de paléontologie et d'anatomie comparée, Paris | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Trigoniida |
| Superfamily: | †Megatrigonioidea |
| Family: | †Megatrigoniidae Van Hoepen, 1929 |
Megatrigoniidae is an extinct family of fossil saltwater clams, marine bivalve molluscs in the subclass Paleoheterodonta. This family of bivalves is known in the fossil record from the Jurassic period, Tithonian age, to the Cretaceous period, Maastrichtian age. Species in this family were facultatively mobile infaunal suspension feeders.
Subfamilies and genera
Subfamilies and genera within the family Megatrigoniidae:
- Megatrigoniinae van Hoepen 1929
- Apiotrigonia Cox 1952
- Pterotrigoniinae van Hoepen 1929
- Paulckella Cooper et al. 1989
- Pterotrigonia van Hoepen 1929
Distribution
Fossils of this family have been found in Jurassic of Antarctica, Chile, India and in Cretaceous of Angola, Antarctica, Argentina, Austria, 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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