Barosaurus

Barosaurus
Temporal range: Late Jurassic (Kimmeridgian),
Mounted skeleton in rearing posture with a juvenile Kaatedocus siberi, American Museum of Natural History
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Clade: Sauropoda
Superfamily: Diplodocoidea
Family: Diplodocidae
Genus: Barosaurus
Marsh, 1890
Species:
B. lentus
Binomial name
Barosaurus lentus
Marsh, 1890

Barosaurus (/ˌbærˈsɔːrəs/ BARR-oh-SOR-əs) was a giant, long-tailed, long-necked, plant-eating sauropod dinosaur closely related to the more familiar Diplodocus. Remains have been found in the Morrison Formation from the Upper Jurassic Period of Utah and South Dakota. It is present in stratigraphic zones 2–5.

The composite term Barosaurus comes from the Greek words barys (βαρυς) meaning "heavy" and sauros (σαυρος) meaning "lizard", thus "heavy lizard".

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