Brachyceratops

Name: Brachyceratops ‭(‬Short horned face‭)‬.
Phonetic: Brak-e-seh-rah-tops.
Named By: Charles Whitney Gilmore‭ ‬-‭ ‬1914.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Ornithischia,‭ ‬Ceratopsidae,‭ ‬Centrosaurinae.
Species: B.‭ ‬montanensis.
Diet: Herbivore.
Size: About‭ ‬1.5‭ ‬meters long for the juvenile specimens.
Known locations: USA,‭ ‬Montana‭ ‬-‭ ‬Two Medicine Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial remains of several juveniles.

       Brachyceratops is regarded as a highly dubious genus of ceratopsian dinosaur that may represent the juvenile form of another already named genus,‭ ‬and indeed one specimen of Brachyceratops (‬USNM‭ ‬14765,‭ ‬a sub adult referred to the original five juveniles‭) ‬has already been moved to the Rubeosaurus genus.‭ ‬This would normally raise speculation that Rubeosaurus might be a junior synonym to Brachyceratops since the former genus was named in‭ ‬2010.‭ ‬However,‭ ‬because the five juveniles of Brachyceratops do not have any clearly identifiable features because these would not develop until adulthood,‭ ‬they cannot be held as being diagnostic of a genus.‭ ‬Therefore,‭ ‬not only can the Brachyceratops juveniles not have seniority over Rubeosaurus,‭ ‬but Brachyceratops has to be treated as a dubious genus because adults would look very different from them and could not be positively assigned.‭ ‬The only thing that can be said about Brachyceratops with confidence is that the genus belongs within the Centrosaurinae,‭ ‬the group of ceratopsians noted for having smaller neck frills but more developed horns.

Further reading
-‭ ‬A new ceratopsian dinosaur from the Upper Cretaceous of Montana,‭ ‬with note on Hypacrosaurus‭ ‬-‭ ‬Smithsonian Miscellaneous Collections‭ ‬63‭(‬3‭)‬:1-10‭ ‬-‭ ‬Charles Whitney Gilmore‭ ‬-‭ ‬1914.
-‭ ‬Brachyceratops,‭ ‬a ceratopsian dinosaur from the Two Medicine Formation of Montana,‭ ‬with notes on associated fossil reptiles‭ ‬-‭ ‬United States Geological Survey Professional Paper‭ ‬103:‭ ‬1-45‭ ‬-‭ ‬Charles Whitney Gilmore‭ ‬-‭ ‬1917.
-‭ ‬The smallest known horned dinosaur,‭ ‬Brachyceratops.‭ ‬-‭ ‬Proceedings of the United States National Museum‭ ‬61‭(‬3‭)‬:1-4‭ ‬-‭ ‬Charles Whitney Gilmore‭ ‬-‭ ‬1922.
-‭ ‬Ceratopsian dinosaurs from the Two Medicine Formation,‭ ‬Upper Cretaceous of Montana.‭ ‬-‭ ‬Proceedings of the United States National Museum‭ ‬87‭(‬3066‭)‬:1-18‭ ‬-‭ ‬Charles Whitney Gilmore‭ ‬-‭ ‬1939.
-‭ ‬Craniofacial ontogeny in centrosaurine dinosaurs‭ (‬Ornithischia:‭ ‬Ceratopsidae‭)‬:‭ ‬taphonomic and behavioral implications.‭ ‬-‭ ‬Zoological Journal of the Linnean Society,‭ ‬121:‭ ‬293‭–‬337‭ ‬-‭ ‬S.‭ ‬D.‭ ‬Sampson,‭ ‬M.‭ ‬J.‭ ‬Ryan‭ & ‬D.‭ ‬H.‭ ‬Tanke‭ ‬-‭ ‬1997.
-‭ ‬A Subadult Specimen of Rubeosaurus ovatus‭ (‬Dinosauria:‭ ‬Ceratopsidae‭)‬,‭ ‬with Observations on Other Ceratopsids from the Two Medicine Formation‭ ‬-‭ ‬PLoS ONE‭ ‬6‭(‬8‭)‬:‭ ‬e22710.‭ ‬doi:10.1371/journal.pone.0022710‭ ‬-‭ ‬Andrew T.‭ ‬McDonald‭ ‬-‭ ‬2011.



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