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Mosasaur Predation on Upper Cretaceous Nautiloids and Ammonites from the United States Pacific Coast
Erle G. Kauffman
Vol. 19, No. 1 (Feb., 2004), pp. 96-100
Published by: SEPM Society for Sedimentary Geology
Stable URL: http://www.jstor.org/stable/3515798
Page Count: 5
You can always find the topics here!Topics: Teeth, Ammonoidea, Jaw, Scars, Predation, Cephalopods, Gastrointestinal secretions, Animal organs, Juveniles, Reptiles
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A remarkable encounter between two Cretaceous mosasaurs of the same species and a sick or recently dead nautiloid (Argonautilus catarinae Sundberg) is recorded. It is possible that the mosasaur was training its young to attack shelled cephalopods. This is the first recorded attack by two mosasaurs on a nautiloid in the eastern Pacific Ocean, although ammonites preyed upon by mosasaurs are known from the west coast of North America.
PALAIOS © 2004 SEPM Society for Sedimentary Geology