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 (/ˌbæroʊˈsɔːrəs/ BARR-oh-SOR-əs) is a genus of 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 Colorado, Utah, South Dakota, and eastern Wyoming at Como Bluff. 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".