Assertion: possum's tail | /r/CapableOf | indicate reptilian affinities
Facets:
value: in the earlier ages
type: TEMPORAL
Source sentences:
text: The record is thus imperfect and fragmentary in the extreme; but it yet shows us, in the few birds discovered in the older rocks, more primitive and generalised types, while the Tertiary birds had already become specialised like those living, and had lost both the teeth and the long vertebral tail, which indicate reptilian affinities in the earlier ages.