Peishansaurus: Difference between revisions
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Revision as of 16:41, 18 July 2016
| Peishansaurus Temporal range: Late Cretaceous
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| Genus: | Peishansaurus
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| Species: | P. philemys
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| Binomial name | |
| Peishansaurus philemys Bohlin, 1953
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Peishansaurus (PAY-SHAHN-SAWR-us[needs IPA] - meaning "north mountain lizard") was a genus of plant-eating dinosaur that lived during the Late Cretaceous period (Campanian stage), roughly 85-72 million years ago.
Peishansaurus was named and described by the Swedish paleontologist Anders Birger Bohlin in 1953. The type species is Peishansaurus philemys. Peishansaurus is named after Peishan North Mountain in the Xinjiang Uygur Autonomous Region, China. The specific name philemys means "lover of turtles" from the Greek φιλέω, phileo, "to love", and ἐμύς, emys, "water turtle" in reference to the fact that at the site also the turtle Peishanemys latipons was found, a member of the Dermatemydidae.[1]
In 1930 Bohlin, in the context of the Swedish-Chinese expeditions of Sven Hedin, had uncovered the fossils at Ehr-chia-wu-t'ung, in the west of Gansu, in a layer of the Minhe Formation dating from the Campanian. They consist of an about 2-inch (5-centimetre) long piece of a right lower jaw with four tooth positions and a loose tooth.[1] The holotype is lost.[2]
Peishansaurus is today considered a nomen dubium, doubtful genus.[2] Bohlin placed it in the Ankylosauridae, assuming the fossil represented a juvenile ankylosaurid,[1] but it could also be a pachycephalosaur. In 1999, Kenneth Carpenter considered the tooth to be similar to that of Psittacosaurus.[3] Peishansaurus is today seen as Ornithischia incertae sedis.
Notes
- ^ a b c B. Bohlin, 1953, Fossil reptiles from Mongolia and Kansu. Reports from the Scientific Expedition to the North-western Provinces of China under Leadership of Dr. Sven Hedin. VI. Vertebrate Palaeontology 6. The Sino-Swedish Expedition Publications 37, 113 pp
- ^ a b Arbour, Victoria Megan, 2014, Systematics, evolution, and biogeography of the ankylosaurid dinosaurs. Ph.D thesis, University of Alberta
- ^ Carpenter, K., 1999, Eggs, Nests, and Baby Dinosaurs. A Look at Dinosaur Reproduction, Indiana University press, 336 pp
External links
- Dinosauria Translation and Pronunciation Guide
- Thescelosaurus! page containing information about Peishansaurus
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