Name: Tanytrachelos ‭(‬long neck‭)‬.
Phonetic: Tan-e-tra-kel-os.
Named By: P.‭ ‬E.‭ ‬Olsen‭ ‬-‭ ‬1979.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Protorosauria,‭ ‬Tanystropheidae.
Species: T.‭ ‬ahynis‭ (‬type‭)‬.
Diet: Carnivore/Piscivore.
Size: Roughly about‭ ‬50-60‭ ‬centimetres long.
Known locations: USA,‭ ‬Arizona‭ ‬-‭ ‬Chinle Formation,‭ ‬New Jersey‭ ‬-‭ ‬Lockatong Formation,‭ ‬and North Carolina‭ ‬-‭ ‬Cow Branch Formation.
Time period: Norian of the Triassic.
Fossil representation: Several individuals.

       Tanytrachelos is a genus of tanystropheiid reptile‭ (‬relative of Tanystropheus‭) ‬that lived during‭ ‬the‭ ‬Late Triassic.‭ ‬There is speculation that Tanytrachelos may be synonymous with the genus Gwyneddosaurus,‭ ‬and usually this would mean Tanytrachelos would be renamed as Gwyneddosaurus since this genus was named before Tanytrachelos.‭ ‬However since Gwyneddosaurus is based upon very dubious fossil remains,‭ ‬there has also been suggestion that if the two genera indeed are synonymous,‭ ‬then a special case should be made to preserve Tanytrachelos as a valid genus since it is the only one based upon good identifiable remains.

Further reading
-‭ ‬A new aquatic eosuchian from the Newark Supergroup‭ (‬Late Triassic–Early Jurassic‭) ‬of North Carolina and Virginia.‭ ‬-‭ ‬Postilla‭ ‬176:1-14.‭ ‬-‭ ‬P.‭ ‬E.‭ ‬Olsen‭ ‬-‭ ‬1979.
-‭ ‬Multivariate morphometrics and allometry of the Triassic reptile Tanytrachelos ahynis.‭ ‬-‭ ‬Geological Society of America Abstracts with Programs‭ ‬37‭ (‬7‭)‬:‭ ‬88.‭ ‬M.‭ ‬Casey‭ ‬-‭ ‬2005.
-‭ ‬Quantitative Taphonomy of a Triassic Reptile Tanytrachelos ahynis from the Cow Branch Formation,‭ ‬Dan River Basin,‭ ‬Solite Quarry,‭ ‬Virginia.‭ ‬-‭ ‬PALAIOS‭ ‬22‭ (‬6‭)‬:‭ ‬598.‭ ‬-‭ ‬M.‭ ‬M.‭ ‬Casey,‭ ‬N.‭ ‬C.‭ ‬Fraser‭ & ‬M.‭ ‬Kowalewski‭ ‬-‭ ‬2007.
- A complete and articulated Tanytrachelos ahynis (Reptilia: Protorosauroidea) from the Late Triassic Lockatong Formation of northern New Jersey, U.S.A. - Jason Schein, David C. Parris & Rodrigo Pellegrini - 2010.
- The middle-late Triassic tetrapod footprint ichnogenus Gwyneddichnium. - New Mexico Museum of Natural History & Science Bulletin. 62: 135–156. - Spencer G. Lucas, Michael J. Szajna, Martin G. Lockley, David L. Fillmore, Edward L. Simpson, Hendrik Klein, Jack Boyland & Brian W. Hartline - 2014.


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