Assertion: known caecilian | /r/HasProperty | cenozoic
Facets:
value: recently
type: TEMPORAL
value: in age
type: TEMPORAL
Source sentences:
text: Fossil caecilians are very rare; until recently the oldest known caecilians were Cenozoic in age (that is, less than 65 million years old), but recent finds have pushed back the ancestry of the legless caecilians to Jurassic ancestors that had short legs.