Pterotrigonia is an extinct genus of saltwater clams, marine bivalve molluscs in the family Megatrigoniidae. This genus is known in the fossil record...

Beverage Milk Dance Square dance Firearm Barrett M82 Food Tomato Fossil Pterotrigonia (Scabrotrigonia) thoracica Gemstone Tennessee River pearl Mineral Agate...

Triceratops Triceratops horridus 1988 Tennessee Cretaceous Bivalve Pterotrigonia thoracica 1998 Utah Jurassic Allosaurus Allosaurus fragilis 1988 Vermont...

†Pseudocorax †Pteria †Pterotrigonia †Pterotrigonia angulicostata †Pterotrigonia eufalensis †Pterotrigonia eufaulensis †Pterotrigonia thoracica †Ptychodus...

†Pseudocorax †Pteria †Pterotrigonia †Pterotrigonia angulicostata †Pterotrigonia cerulea †Pterotrigonia eufalensis †Pterotrigonia eufaulensis †Ptychotrygon...

†Pterocerella tippana †Pterotrigonia †Pterotrigonia angulicostata †Pterotrigonia cerulea †Pterotrigonia eufalensis †Pterotrigonia eufaulensis †Ptychodus...

Pleistocene creatures was made near Nashville. The Cretaceous bivalve Pterotrigonia thoracica is the Tennessee state fossil. During the Precambrian, Tennessee...

†Pteria †Pterotrigonia †Pterotrigonia angulicostata †Pterotrigonia cerulea †Pterotrigonia eufalensis †Pterotrigonia eufaulensis †Pterotrigonia thoracica...

fossils from this formation is the gastropod Turritella, the bivalve Pterotrigonia thoracica (the state fossil of Tennessee), as well as other fossils...

†Pterophyllum †Pterotrigonia †Pterotrigonia bartrami – tentative report †Pterotrigonia cerulea †Pterotrigonia eufalensis †Pterotrigonia eufaulensis †Pugnellus...