Magnirostris

Magnirostris, from the Latin magnus "large" and rostrum "beak", is the name given to a genus of dinosaur from the upper Campanian stage in the Upper Cretaceous. It was a ceratopsian which lived in Inner Mongolia in China. It is distinguished from other protoceratopsids by its large beak (hence the name) and incipient orbital horn cores.

Magnirostris
Temporal range: Campanian 84–72 Ma
Skull of Magnirostris dodsoni, on display at the Paleozoological Museum of China
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: †Ornithischia
Infraorder: †Neoceratopsia
Parvorder: †Coronosauria
Family: †Protoceratopsidae
Genus: †Magnirostris
You and Dong, 2003
Species
  • M. dodsoni You and Dong, 2003 (type)

Discovery and species

Magnirostris dodsoni was described by You and Dong Zhiming in 2003, from a near-complete skull collected from the Bayan Mandahu area in Inner Mongolia, China by the Sino-Canadian Dinosaur Project. It was named after Peter Dodson, a palaeontologist.

It may be only a variant of Bagaceratops, and the incipient horn cores may be an artifact of preservation.[1]

Paleoecology

Magnirostris lived in deserts with dunes. Other dinosaurs discovered in the Bayan Mandahu include Protoceratops helleninkorhinus, another primitive ceratopsian, and possibly Velociraptor osmolskae, a small predatory theropod.[2]

See also

References
  1. Makovicky, Peter J.; Norell, Mark A. (2006). "Yamaceratops dorngobiensis, a new primitive ceratopsian (Dinosauria: Ornithischia) from the Cretaceous of Mongolia" (pdf). American Museum Novitates. 3530: 1–42. doi:10.1206/0003-0082(2006)3530[1:YDANPC]2.0.CO;2. ISSN 0003-0082.
  2. Paul, Gregory S. The Princeton Field Guide to Dinosaurs. 2nd ed. Princeton, NJ: Princeton UP, 2016. Print.

Sources
  • You H.-L. & Dong Zhiming (2003). "A new protoceratopsid (Dinosauria: Neoceratopsia) from the Late Cretaceous of Inner Mongolia, China". Acta Geologica Sinica (English edition). 77 (3): 299–303. doi:10.1111/j.1755-6724.2003.tb00745.x.


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