Laevitrigonia

Laevitrigonia is a genus of fossil clams, marine bivalve mollusks in the family Trigoniidae. This bivalve is sometimes preserved with mineralized soft-tissue.^[1]

Laevitrigonia
An internal mold of Laevitrigonia gibbosa from the Portland Limestone (Upper Jurassic), Isle of Portland, Dorset, England, scale bar is 1 cm
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Trigoniida
Family:	Trigoniidae
Subfamily:	†Laevitrigoniinae
Genus:	†Laevitrigonia