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Showing results for tags 'anacoracidae'.
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This thread was inspired by Sander's excellent review of his collection of Squalicorax teeth. I have started getting some of my Squalicorax specimens together and a few have been photographed already to provide additional visual references for collectors. I will try to show teeth chronologically (Albian teeth first, then Cenomanian...) from early in the evolution of the genus and on to the time of its last representatives. I start with the two oldest Squalicorax teeth in my collection - a pair of specimens from the Upper Albian-age Pawpaw Formation, Motorola site, Tarrant County, Texas. The first tooth is S. pawpawensis (10mm along the mesial edge) and the second is S. priscoserratus (just over 10mm along the mesial edge).
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From the album: My collection in progress
Squalicorax pristodontus Agassiz 1843 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 2,5x1,5 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Anacoracidae -
From the album: Maastrichtian Shark Teeth, Volgograd Oblast, Russia
Pseudocorax affinis (Agassiz 1843). Slant length indicated by longest side.-
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