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Hexinlusaurus multidens Skeletal Restoration

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Description

Skeletal restoration of the very small ornithischian Hexinlusaurus multidens from the Middle Jurassic Lower Shaximiao Formation of Sichuan, China based on the holotype specimen ZDM T6001, a mostly complete subadult. There is a less complete specimen, ZDM T6002, which is about 1.5 times larger than the holotype, with a total length probably slightly greater than two meters. This species has had a long and somewhat convoluted taxonomic history, originally named as a second species of Yandusaurus, Y. multidens; then transfered into another genus, Agilisaurus, as A. multidens; and finally given its own generic name, Hexinlusaurus.

I should also note that Dong Zhiming sunk Hexinlusaurus, Agilisaurus, and Yandusaurus into Xiaosaurus dashanpensis (three very different animals sunk into a fourth very different animal based on.... sub-ideal material). Also, Greg Paul lumped (surprised!?) this species into the superficially similar genus Othnielia as O. multidens, although as with Dong, no one followed this suggestion.
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Qilong's avatar
He's such a cool little guy.