Name: Sebecus ‭(‬Named after the Ancient Egyptian crocodile god Sobek‭)‬.
Phonetic: Seh-be-kuss.
Named By: George Gaylord Simpson‭ ‬-‭ ‬1937.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Crocodylomorpha,‭ ‬Notosuchia,‭ ‬Sebecosuchia,‭ ‬Sebecidae.
Species: S.‭ ‬icaeorhinus‭ (‬type‭)‬.
Diet: Carnivore.
Size: Roughly estimated between‭ ‬2.2‭ ‬and‭ ‬3.1‭ ‬meters in length.
Known locations: Argentina,‭ ‬Patagonia‭ ‬-‭ ‬Casamayor Formation,‭ ‬Sarmiento Formation.
Time period: Ypresian of the Eocene.
Fossil representation: Partial skull and post cranial remains of several individuals.

       Sebecus is a genus of notosuchian crocodylomorph that is known to have lived in South America during the earliest part of the Eocene.‭ ‬Sebecus would‭ ‬have been predators of other similarly sized animals,‭ ‬but unlike crocodiles that we know today,‭ ‬Sebecus would have been more terrestrial and hunting on the land.‭ ‬Details of the anatomy such as longer legs and eyes that are on the sides of the head rather than orientated to look up all support this conclusion.‭ ‬The snout of Sebecus was deep,‭ ‬indicating longer jaw closing muscles that in turn suggest that‭ ‬had a particularly strong bite.‭ ‬The teeth of Sebecus have also been noted to be similar to the teeth of the earlier tyrannosaurid dinosaurs.‭ ‬These teeth had fairly blunt tips but were strongly serrated,‭ ‬with the serrations adapted for tearing up the preys muscle fibres.‭ ‬Combined with the extra strong jaw closing muscles and Sebecus may have hunted animals that had notably tough hides,‭ ‬possibly even crunching through bones.
       At the time of writing only the type species of Sebecus,‭ ‬S.‭ ‬icaeorhinus,‭ ‬is considered valid The Sebecus genus once had two additional species assigned to it,‭ ‬S.‭ ‬huilensis and S.‭ ‬querejazus.‭ ‬S.‭ ‬huilensis has now been classified as its own genus Langstonia,‭ ‬while S.‭ ‬querejazus is also its own genus named Zulmasuchus,‭ ‬both changes being a result of a‭ ‬2007‭ ‬study into Sebecus by Paolillo‭ & ‬Linares.

Further reading
-‭ ‬Sebecus,‭ ‬representative of a peculiar suborder of fossil Crocodilia from Patagonia,‭ ‬-‭ ‬Bulletin of the American Museum of Natural History‭ ‬87‭ (‬4‭)‬:‭ ‬221‭–‬270.‭ ‬-‭ ‬E.‭ ‬H.‭ ‬Colbert‭ ‬-‭ ‬1946.
-‭ ‬The serrated teeth of tyrannosaurid dinosaurs,‭ ‬and biting structures in other animal.‭ ‬-‭ ‬Paleobiology‭ ‬18‭ (‬2‭)‬:‭ ‬161‭–‬183.‭ ‬-‭ ‬W.‭ ‬L.‭ ‬Abler‭ ‬-‭ ‬1992.
-‭ ‬The serrated teeth of Sebecus and the Iberoccitanian crocodile,‭ ‬a morphological and ultrastructural comparison.‭ ‬-‭ ‬Stvdia Geologica Salmanticensia‭ ‬29:‭ ‬127‭–‬14.‭ ‬-‭ ‬O.‭ ‬Legasa,‭ ‬A.‭ ‬D.‭ ‬Buscalioni‭ & ‬Z.‭ ‬Gasparini‭ ‬-‭ ‬1993.
-‭ ‬Nuevos cocodrilos Sebecosuchia del Cenozoica Suramericana‭ (‬Mesosuchia‭ ‬:‭ ‬Crocodylia‭)‬.‭ ‬-‭ ‬Paleobiologica Neotropical‭ ‬3:‭ ‬1‭–‬25.‭ ‬-‭ ‬A.‭ ‬Paolillo‭ & ‬O.‭ ‬Linares‭ ‬-‭ ‬2007.
-‭ ‬Postcranial anatomy of Sebecus icaeorhinus‭ (‬Crocodyliformes,‭ ‬Sebecidae‭) ‬from the Eocene of Patagonia.‭ ‬-‭ ‬Journal of Vertebrate Paleontology‭ ‬32‭ (‬2‭)‬:‭ ‬328‭–‬354.‭ ‬-‭ ‬Diego Pol,‭ ‬Juan M.‭ ‬Leardi,‭ ‬Agustina Lecuona‭ & ‬Marcelo Krause‭ ‬-‭ ‬2012.


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