Name: Sulcusuchus.
Phonetic: Sul-ku-soo-kus.
Named By: Gasparini and Spalletti‭ ‬-‭ ‬1990.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Sauropterygia,‭ ‬Plesiosauroidea,‭ ‬Polycotylidae.
Species: S.‭ ‬erraini‭ (‬type‭)‬.
Diet: Piscivore.
Size: Unavailable.
Known locations: Argentina.
Time period: Campanian of the Cretaceous.
Fossil representation: Single specimen.

       Although the last part of the name‭ ‘‬suchus‭’ ‬is ancient Greek for crocodile,‭ ‬Sulcusuchus was actually a plesiosaur,‭ ‬a member of the famous group of long necked marine reptiles of the Mesozoic.‭ ‬In more specific terms it is considered to be a polycotylid plesiosaur,‭ ‬with one of the more famous members of this group being Dolichorhynchops.‭ ‬Like with its close relatives,‭ ‬Sulcusuchus is noted for having a proportionately short neck with jaws longer than most other types of plesiosaur.‭ ‬Other late Cretaceous plesiosaurs known from South America include Aristonectes,‭ ‬although this was quite different from Sulcusuchus.


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