Paleontologist Guillermo Rougier, Ph.D., professor of anatomical sciences and neurobiology at the University of Louisville, and his team have reported their discovery of two skulls from the first known mammal of the early Late Cretaceous period of South America. The fossils break a roughly 60 million-year gap in the currently known mammalian record of the continent and provide new clues on the early evolution of mammals.
Details of their find are published Nov. 3 in Nature. Co-authors are Sebastián Apesteguía of Argentina's Universidad Maimónides and doctoral student Leandro C. Gaetano.
The new critter, named Cronopio dentiacutus by the paleontologists, is a dryolestoid, an extinct group distantly related to today's marsupials and placentals.
Flakkarin wrote:I clicked on the link purely to see the "artist's depiction", I love those things!
<pedantic> Incidentally, if that's an apatosaurus (brontosaurus) in the background then it's inaccurate, those guys lived in the Jurassic, not Cretaceous </pedantic>
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