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Janenschia
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
(unranked) Titanosauria
Genus: Janenschia
Binomial name
Janenschia robusta
Wild, 1991
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Janenschia was a large sauropod from Late Jurassic Africa (155 million years ago), and therefore the earliest known titanosaur. Originally thought to be a species of the diplodocid Tornieria/Barosaurus (previously "Gigantosaurus"), it was later found to be a distantly related titanosaur.
The type species, Janenschia robusta, was first described by Wild in 1991.
Referances
http://www.users.qwest.net/~jstweet1/macronaria.htm
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