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Pterotrigonia is an
extinct genus of sal****er clams,
marine bivalve molluscs in the
family Megatrigoniidae. This
genus is
known in the
fossil record...
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Beverage Milk
Dance Square dance Firearm Barrett M82 Food
Tomato Fossil Pterotrigonia (Scabrotrigonia)
thoracica Gemstone Tennessee River pearl Mineral Agate...
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Triceratops Triceratops horridus 1988
Tennessee Cretaceous Bivalve Pterotrigonia thoracica 1998 Utah Jur****ic
Allosaurus Allosaurus fragilis 1988 Vermont...
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fossils from this
formation is the
gastropod Turritella, the
bivalve Pterotrigonia thoracica (the
state fossil of Tennessee), as well as
other fossils...
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Pleistocene creatures was made near Nashville. The
Cretaceous bivalve Pterotrigonia thoracica is the
Tennessee state fossil.
During the Precambrian, Tennessee...
- 1983
Pterotrigoniinae van
Hoepen 1929
Paulckella Cooper et al. 1989
Pterotrigonia van
Hoepen 1929
Fossils of this
family have been
found in Jur****ic of...
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quarried in East Tennessee, is used as a
building stone.
State fossil Pterotrigonia thoracica was
designated official state fossil in 1998, by the 100th...
- †Pseudocorax †Pteria †
Pterotrigonia †
Pterotrigonia angulicostata †
Pterotrigonia eufalensis †
Pterotrigonia eufaulensis †
Pterotrigonia thoracica †Ptychodus...
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Semnan Province > Bivalvia: Inoperna, Late Jur****ic,
Semnan Province Pterotrigonia, Jur****ic,
North Khorasan Province Trigonia, Jur****ic,
North Khorasan...
- Quadrapl****
brossus (H)
Plesiosaurs Aristonectes parvidens Bivalves Pterotrigonia windhausenia Macroflora Lefipania padillae Araucaria lefipanensis Retrophyllum...
