
Luperosuchus is an extinct genus of crurotarsan, a group which includes crocodilians and their ancestors. It lived during the Anisian stage of the Middle Triassic, and is known from Argentina. ...
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http://en.wikipedia.org/wiki/Luperosuchus

Luperosuchus The troublesome crocodile named to indicate the fragmentary and perplexing nature of the type material, which made the specimen difficult to restore and describe accurately. From Middle Triassic South America. Named by Romer in 1971.
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http://www.wordinfo.info/words/index/info/view_unit/1219/
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