Sebecosuchia is an extinct group of mesoeucrocodylian crocodyliforms that includes the families Sebecidae and Baurusuchidae. The group first appeared in the Late Cretaceous with the baurusuchids and went extinct in the Miocene with the last sebecids. Fossils have been found primarily from South America but have also been found in Europe, North Afr...
Found on
http://en.wikipedia.org/wiki/Sebecosuchia
(from the article `crocodile`) ...true crocodiles (Eusuchia), which appear in the Upper Jurassic, the choanae are entirely enclosed by the pterygoids. In modern species they have ...
Found on
http://www.britannica.com/eb/a-z/s/54
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