Type Species: Barapasaurus tagorei
Classification: Dinosauria - Saurischia - Sauropoda - Gravisauria - Cetiosauridae
Time Period: Early Jurassic
Location: India
Diet: Herbivore
The Early Jurassic sauropod Barapasaurus is one of the few dinosaurs that have been discovered on the Indian subcontinent. It lived during the Sinemurian and Pliensbachian stages of the Early Jurassic (199-182 million years ago). Over 300 Barapasaurus fossils were discovered in the Godavari Valley of south central Indian in 1961. The remains included no skulls or feet, but it was determined that the remains belonged to at least six individuals. The fossils were found among large tree trunks scattered over an area of over 250 square meters. Paleontologists speculate this assemblage was due to a catastrophic flood, in which the herd of these early sauropods in a conifer forest were swept away – along with the trunks of their foodstuffs – and deposited a distance away. As they began to decompose, the bones began to disarticulate, and the disarticulated skull bones were removed by the residual water streams because they were light.
Barapasaurus was an early sauropod, and it exemplified many of the derived sauropod traits. An adult reached about sixty-six feet from head-to-tail, and it had the elongated neck and tail of the sauropods. It had a short trunk and columnar limbs. Its vertebrae show signs of transitioning to the type seen in more derived sauropods: though Barapasaurus had rudimentary weight-saving scoops or hollows common in sauropods, they were less prevalent than those found in later sauropods. Only three whole teeth and three crowns have been discovered. The largest known tooth is 5.8 centimeters in height. Its teeth were spoon-shaped and show wrinkled enamel, as is the case with derived sauropods. Barapasaurus was likely slow and plodding, feeding for many hours a day. It stripped vegetation and swallowed its food without chewing, allowing gastroliths in the gut to break down the food for processing.
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