Name: Orthogoniosaurus ‭(‬Straight angled lizard‭)‬.
Phonetic: Or-foe-gon-e-o-sore-us.
Named By: H.‭ ‬C.‭ ‬Das-Gupta‭ ‬-‭ ‬1931.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda.
Species: O.‭ ‬matleyi‭ (‬type‭)‬.
Diet: Carnivore.
Size: Unknown due to lack of remains.‭ ‬Holotype tooth‭ ‬is‭ ‬27‭ ‬millimetres long.
Known locations: India,‭ ‬Madhya Pradesh,‭ ‬Jabalpur‭ ‬-‭ ‬Lameta Formation.
Time period: Maastrichtian of the Cretaceous.
Fossil representation: Fragmentary tooth.

       The first genus of theropod dinosaur to ever be named from India’s Lameta Formation,‭ ‬Orthogoniosaurus has often been considered to be a senior synonym for other theropod genera that were later discovered.‭ ‬However the holotype of Orthogoniosaurus is only a tooth,‭ ‬and because of this no other fossil remains have been attributed to the genus because it is almost impossible to identify them based upon such scant fossil material.‭
       Other theropods from the Lameta Formation which are known from much more complete remains include Indosaurus,‭ ‬Indosuchus,‭ ‬Rajasaurus and Rahiolisaurus amongst others.‭ ‬Interestingly,‭ ‬all four of these genera are abelisaurid theropods,‭ ‬though the tooth of Orthogoniosaurus has been regarded as possibly coming from a ceratosaurian theropod,‭ ‬though again,‭ ‬because only a tooth is known this is not seen as a certainty,‭ ‬just a possibility.

Further reading
-‭ ‬On a new theropod dinosaur‭ (‬Orthogoniosaurus matleyi,‭ ‬n.‭ ‬gen.‭ ‬et n.‭ ‬sp.‭) ‬from the Lameta beds of Jubbulpore,‭ ‬H.‭ ‬C.‭ ‬Das-Gupta‭ ‬-‭ ‬1931.


Random favourites