1-3 of 3 Books
Elasmosaurid plesiosaurs with description of new material from California and Colorado
Elasmosaurid plesiosaurs with description of new material from California and Colorado
By Samuel P. Welles
A review of the North American Crataceous elasmosaurs
A review of the North American Crataceous elasmosaurs
By Samuel P. Welles
A review of the North American Cretaceous elasmosaurs
A review of the North American Cretaceous elasmosaurs
By Samuel P. Welles