The Hopparoo (also rarely called Kangasaurus) is a domesticable species of large kangaroo-like creatures which existed during the Stone Age in the franchise of The Flintstones.
The Hopparoo was one of the most exotic animals in the setting, being the dinosaur-equivalent of kangaroos who hailed from Rockstralia, although ones resembling regular kangaroos did exist too, serving as golf caddies and also the Rubbles' family pet, Hoppy.
Anatomically, they possess features of both reptiles and mammals: the long ears and a marsupial pouch on the abdomen suggest a mammalian affinity, whereas the snout and dorsal plates might indicate otherwise. Others simply looked like regular modern day kangaroos but with ridges on their backs or horns on their heads.
Like a kangaroo, they move around by hopping and are capable of supporting their own weight with their tail in order to deliver a powerful kick with both legs.
Breeds & Relatives
A more mammalian breed of hopparoo that looked much like modern day kangaroos but with some reptilian traits or none at all. With some having ridges along their back, horns on their head or nose and/or Saber-Toothed Cat-like fangs. They came in a wide range of sizes and had many uses, such as golf caddies, bags, powder puffs and even mobile tool boxes.
Giant kangasauruses were humongous creatures that were also far more aggressive than others of their kind. They were mainly hunted for sport.