Assertion: fern's leaf | /r/CapableOf | evolve to early carboniferous
Facets:
value: during the late devonian
type: TEMPORAL
value: in each of the four groups
type: OTHER
Source sentences:
text: In each of the four groups to evolve megaphylls, their leaves first evolved during the Late Devonian to Early Carboniferous, diversifying rapidly until the designs settled down in the mid Carboniferous.