Assertion: reptile | /r/HasProperty | one of the earliest known
Facets:
value: on the planet
type: LOCATION
Source sentences:
text: Petrolacosaurus (a small diapsid (two holes in side of their skulls) reptile, one of the earliest known) and Mesosaurus (one of the first reptiles to return to the water where its amphibian ancestors originally came from) are other examples.
text: Reptiles are the oldest type of animal on the planet.