Description
From the later Cretaceous of what is now Argentina you can see the fellow to the right all huddled under the tree. This is Aucasaurus and it is part of the Abelisauridae family. Relatives include Majungasaurus, Carnotaurus, Rugops and Abelisaurus.
Aucasaurus was a predator about 16 feet long, so long necked sauropods were only on the scavenging menu or young and babies. They may have hunted smaller dinosaurs, such as Alvareszaurus, and hunted early mammals or birds. A number of true birds have been discovered in this region. They lived in Argentina South America about 84-83 million years ago in a warm wet climate, with rivers, floodplains and marshes.
In the distance is a group of Antarctosaurus. Though the skeleton is incomplete and was mixed with some other bones, they have found ribs, skull fragments and a braincase, a lower jaw, some vertebrae of the neck and tail and numerous limb bones. One is a femur nearly six feet in length. This gives an estimate of an animal about 35 tons in weight and about 60 feet long. With neck and tail vertebrae missing a true length cannot be made official. It appears to be a Titanosaur and is therefore considered to have habits and looks similar to other Titanosaurs. Massive animals that ate plants almost non-stop.
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