They are an alien species that are a mix of any sort of dinosaur and any sort of mammal
While rare, there are dinomals that are a mix of dinosaurs and other species. Those species can range from reptiles to mystical creatures
They used to be (and still are) used as bodyguards or miners by others
Their height can range from as small as 2'00" to the massive height of 100'00"
They can give birth to live young or lay eggs