Abdounia enniskilleni
Carcharhinidae
Abdounia recticona
Carcharhinidae
Acrocrinus constrictus
Acrocrinitidae
Acrocrinus shumardi
Acrocrinitidae
Aethocephalichthyes hyainarhinos
Aetobatis narinari aff.
Agassizocrinus angustus
Agassizocrinidae
Agassizocrinus dissimilis
Agassizocrinidae
Agassizocrinus longulus
Agassizocrinidae
Agerostrea falcata
Ostreidae
Alabamasauripus aldrichi
Alahexapus martini
Hexapodidae
Albula dunklei
Albulidae
Albulidarum ensis
Albulidae
Alectrion waltonensis
Nassariidae
Alethopteris valida
Medullosaceae
Alligator mississippiensis
Alligatoridae
Amblyrhiza inundata
Heptaxodontidae
Amia uintensis
Amiidae
Ancillopsis altilis
Ancillariidae