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26 October 2020 The First Occurrence of Ptychodus latissimus from the Codell Sandstone Member of the Carlile Shale in Kansas
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Abstract

Three teeth of the late Cretaceous shark Ptychodus latissimus (Agassiz) are described from the upper Middle Turonian Codell Sandstone Member of the Carlile Shale. These teeth are significant because they are the first documented occurrence of the species in Kansas, extending the paleobiogeographic range of species and adding a new paleoecological component to the Codell Sandstone fauna. Its association with various ammonite species living in different trophic levels with other ptychodontid sharks may be indicative of niche partitioning.

Shawn A. Hamm "The First Occurrence of Ptychodus latissimus from the Codell Sandstone Member of the Carlile Shale in Kansas," Transactions of the Kansas Academy of Science 123(3-4), 419-428, (26 October 2020). https://doi.org/10.1660/062.123.0311
Published: 26 October 2020
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