Barbatia barbata
Arcidae
Basilosaurus cetoides
Basilosauridae
Batocrinus persculptus
Batocrinidae
Beretra ripleyana
Turridae
Bison antiquus
Bovidae
Bonnerichthys gladius
Pachycormidae
Borodinopristis schwimmeri
Sclerorhynchidae
Bos taurus
Bovidae
Bothremys barberi
Pelomedusidae
Brachycarcharias atlasi
Odontaspididae
Brachycarcharias lerichei
Odontaspididae
Brachycarcharias twiggsensis
Odontaspididae
Brachyrhizodus ellipsis
Myliobatidae
Brachyrhizodus mcnultyi
Myliobatidae
Brachyrhizodus wichitaensis
Myliobatidae
Brontozoum sillimanum
Bullopsis cretacea
Bullidae
Calamites suckowii
Calamitaceae
Calamites undulatus
Calamitaceae
Calcarichelys gemma
Protostegidae