1821 in paleontology explained
Dinosaurs
Plesiosaurs
New taxa
Notes and References
- Book: Farlow, James Orville . M. K. . Brett-Surmann. The Complete Dinosaur. Indiana University Press. 1999. Bloomington, Indiana. 8. 9780253213136 . 37107117.
- Book: Storrs, G.W.. 1997. Morphological and taxonomic clarification of the genus Plesiosaurus. 145–190. Callaway. J.M. Nicholls. E.L.. Ancient Marine Reptiles. Academic press.