View Taxa: List of taxa by intial letter.
Alzadasaurus sp.
Alzadasaurus cf. A. pembertoni [NICHOLLS, 1988]
Alzadasaurus colombiensis []
Alzadasaurus kansasensis [WELLES, 1952]
Alzadasaurus pembertoni [WELLES & BUMP, 1949]
Alzadasaurus riggsi [WELLES, 1943]
Alzadasaurus serpentinus
Alzadasaurus tropicus [COLBERT, 1949]
Anarosaurus sp.
Anarosaurus heterodontus [RIEPPEL & KEBANG, 1995]
Anarosaurus pumilio [DAMES, 1890]
Anarosaurus pumilio
Anarosaurus sp. sp.
Aphrosaurus sp.
Aphrosaurus furlongi [WELLES, 1943]
Apractocleides aldingeri
Apractocleidus sp. [BROWN, 1981b]
Apractocleidus teretipes [SMELLIE, 1915] (nomen dubium)
Aptychodon sp.
Aptychodon cretaceous
Archaeonectrus sp.
Archaeonectrus rostratus [OWEN, 1865]
Aristonectes sp.
Aristonectes parvidens [CABRERA, 1941]
Aristonectes sp. sp.
as Plesiosaurus sp.
as Plesiosaurus ichthyospondylus [SEELEY, 1869] (nomen dubium)
as Plesiosaurus sp. sp.
Attenborosaurus sp. [BAKKER, 1993] (nomen bakkeri)
Attenborosaurus conybeari
Augustasaurus sp.
Augustasaurus hagodorni []