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What is Psittacosauridae?

Pronunciation: SIT-a-ko-SOR-uh-day
Author: Henry Fairfield Osborn
Year: 1923
Meaning: Parrot lizards (see etymology)
Locomotion: Bipedal (two legs)
Synonyms: None known
Definition:
The most inclusive clade containing Psittacosaurus mongoliensis but not Triceratops horridus
About
Psittacosauridae was coined by Osborn in 1923 but was redundant with Psittacosaurus as its only member. The discovery of Hongshanosaurus bolstered the ranks, but it may actually be synonymous with Psittacosaurus, or a nomen dubium, and if either is the case Psittacosauridae would be redundant again.

A mind-boggling number of species have been assigned to Psittacosaurus down the years, more than makes sense according to some paleontologists. Don't be suprised if the number of psittacosaurids increases as the species of Psittacosaurus itself decreases. Don't be suprised if some species turn out to be mere growth stages of others either.

Click here to search Dinochecker for psittacosaurids.
Etymology
Psittacosauridae is derived from the Greek "Psittakos" (parrot), "sauros" (lizard), and "-idae" (family), referring to their "parrot-like" beaks and close relationship to Psittacosaurus—the Parrot Lizard.
Relationships
Further reading
• Paul C. Sereno (2004) "Psittacosauridae" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
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To cite this page:
Atkinson, L. "DinoChecker FAQ entry :: What is Psittacosauridae?"
http://www.dinochecker.com/dinosaurfaqs/what-is-psittacosauridae›. Web access: 20th Nov 2017.
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