Assertion: filamentous feather | /r/HasProperty | preserved alongside -looking flight feathers
Facets:
value: including some with modifications
type: OTHER
value: from alberta
type: LOCATION
value: in 80 million year old amber
type: LOCATION
Source sentences:
text: Filamentous feathers are preserved alongside modern-looking flight feathers — including some with modifications found in the feathers of extant diving birds — in 80 million year old amber from Alberta.