Dinosaur age sea turtle discovery in Alabama, USA

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This is a reconstruction of the new species (Peritresius martini). Credit: Drew Gentry CC-BY

From PLOS:

New ancestor of modern sea turtles found in Alabama

April 18, 2018

A sea turtle discovered in Alabama is a new species from the Late Cretaceous epoch, according to a study published April 18, 2018 in the open-access journal PLOS ONE by Drew Gentry from the University of Alabama at Birmingham, Alabama, USA, and colleagues.

Modern day sea turtles were previously thought to have had a single ancestor of the Peritresius clade during the Late Cretaceous epoch, from about 100 to 66 million years ago. This ancestral species, Peritresius ornatus, lived exclusively in North America, but few Peritresius fossils from this epoch had been found in what is now the southeastern U.S., an area known for producing large numbers of Late Cretaceous marine turtle fossils. In this study, the research team analyzed sea turtle fossils collected from marine sediments in Alabama and…

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