Saltopus was not much bigger than a rabbit and it was discovered in Scotland. It lived in the late Triassic (215-207mya) Period. Probably the size of a small cat, with hollow bones like those of a bird, and (based on related forms) probably had five-fingered hands and a long head with dozens of sharp teeth. None of this can be known for certain, as Saltopus' fossils are few (mostly hind limb fragments).