Anomoeodus phaseolus ?
Pycnodontidae
Anomotodon angustidens
Mitsukurinidae
Aphelecrinus columbiensis
Appalachemys ebersolei
Macrobaenidae
Araucarioxylon cf. arizonicum
Araucariaceae
Arborichnus repetitus
Arca wagneriana
Arcidae
Archaeolamna kopingensis
Cretoxyrhinidae
Archaeopteryx lithographica
Archaeopterygidae
Arcoscalpellum hubricht
Scalpellidae
Arcuodus multicuspidatus
Arkansaurus fridayi
Ornithomimidae
Astarte isosceles
Astartidae
Astarte sima
Astartidae
Astarte undulata
Astartidae
Asterophyllites charaeformis
Calamostachyaceae
Avitelmessus grapsoideus
Dakoticancridae
Baculites spillmani
Baculitidae
Baculites tippahensis
Baculitidae
Bananogmius crieleyi
Plethodidae