Name: Rhynchosaurus ‭(‬beaked lizard‭)‬.
Phonetic: Rin-ko-sor-us.
Named By: Richard Owen‭ ‬-‭ ‬1842.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Rhynchosauria,‭ ‬Rhynchosauridae.
Species: R.‭ ‬articeps‭ (‬type‭)‬,‭ ‬R.‭ ‬brodiei.
Diet: Herbivore.
Size: Largest individuals up to‭ ‬60‭ ‬centimetres long.
Known locations: England‭ ‬-‭ ‬Bromsgrove Sandstone Formation,‭ ‬Tarporley Siltstone Formation.
Time period: Anisian of the Triassic.
Fossil representation: Several individuals.

       First described in‭ ‬1842,‭ ‬Rhynchosaurus was the first ever rhynchosaur to be named,‭ ‬which is exactly why rhynchosaurs are called rhynchosaurs.‭ ‬Rhynchosaurus had a squat low slung body that was supported by all four legs.‭ ‬Rhynchosaurus is famous for the enlarged shearing teeth at the front of the mouth which would have easily sliced through tough plant matter.
       Though confirmed as a genus in its own right,‭ ‬Rhynchosaurus has for a long time been used as a wastebasket taxon where a great many fossils have been attributed to the genus on the basis of only superficial similarities.‭ ‬More modern analytical practices and research reaching into the early twenty-first centuries has resulted in many of these fossils beening moved to other genera and species of rhynchosaur.‭ ‬One former species in particular,‭ ‬R.‭ ‬spenceri which was one of the large species,‭ ‬has now been re-classified as a distinct genus named Fodonyx.‭ ‬Furthermore,‭ ‬one specimen of this referred material has now also been confirmed as being different from both Rhynchosaurus and Fodonyx,‭ ‬and so yet another genus called Bentonyx was created with this specimen.‭

Further reading
-‭ ‬Description of an Extinct Lacertilian Reptile,‭ ‬Rhynchosaurus articeps,‭ ‬Owen,‭ ‬of which the Bones and Foot-prints characterize the Upper New Red Sandstone at Grinshill,‭ ‬near Shrewsbury.‭ ‬-‭ ‬Transactions of the Cambridge Philosophical Society‭ ‬7‭(‬3‭)‬:355-369.‭ ‬-‭ ‬Richard Owen‭ ‬-‭ ‬1842.
-‭ ‬The species of Rhynchosaurus,‭ ‬a rhynchosaur‭ (‬Reptilia,‭ ‬Diapsida‭) ‬from the Middle Triassic of England.‭ ‬-‭ ‬Philosophical Transactions of the Royal Society of London,‭ ‬Series B‭ ‬328:213-306.‭ ‬-‭ ‬Michael J.‭ ‬Benton‭ ‬-‭ ‬1990.
-‭ ‬A new genus of rhynchosaur from the Middle Triassic of south-west England.‭ ‬-‭ ‬Palaeontology‭ ‬51‭ (‬1‭)‬:‭ ‬95‭–‬115.‭ ‬-‭ ‬David W.‭ ‬E.‭ ‬Hone‭ & ‬Michael J.‭ ‬Benton‭ ‬-‭ ‬2008.


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