A new species of elasmosaur from the Aptian of Colombia and a review of the cretaceous plesiosaurs:
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Bibliographic Details
Main Author: Welles, Samuel Paul (Author)
Format: Book
Language:English
Published: Berkeley [u.a.] Univ. of California Press 1962
Series:University of California publications in geological sciences 44,1
Subjects:
Physical Description:89 S. Ill.

There is no print copy available.

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