Trigonia

For the plant genus, see Trigonia (plant).

Trigonia
Temporal range: Permian-Paleocene
~298–56 Ma
A fossil shell of T. interlaevigata from Germany, of Jurassic age
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Trigoniida
Family: Trigoniidae
Subfamily: Trigoniinae
Genus: †Trigonia
Bruguière, 1789
Species

See text

Diagram of Trigonia costata James Parkinson, showing main morphological features of the shell exterior;
a) Anterior; p) Posterior; d) Dorsal; v) Ventral; F) Flank; A) Area; c) Costae; mc) Marginal Carina
Trigonia costata ranges from the Lower Jurassic (Toarcian) to Middle Jurassic (Callovian).

Trigonia is an extinct genus of saltwater clams, fossil marine bivalve mollusk in the family Trigoniidae. The fossil range of the genus spans the Paleozoic, Mesozoic and Paleocene of the Cenozoic, from 298 to 56 Ma.[1]

  1. ^ Cite error: The named reference FWTrigonia was invoked but never defined (see the help page).