👉 Thylacandra, a type of dinosaur, was a large, long-necked mammal that lived during the Cretaceous period about 69 million years ago. It is known for its massive jawbone and the elongated neck, which allowed it to reach high altitudes and hunt prey on land. Thylacandra had a unique skull structure with three sets of vertebrae, each supporting a different type of teeth. This adaptation likely facilitated their ability to climb trees during their