Assertion: tree kingfisher | /r/HasProperty | treated as full families
Facets:
value: with being ancestral
type: OTHER
value: usually
type: TEMPORAL
Source sentences:
text: In the past, all kingfishers were placed in the Alcedinidae, but it became clear that the three subfamilies diverged early, and the tree-kingfishers and Cerylidae (water-kingfishers) are usually now treated as full families, with the Alcedinidae being ancestral to these two groups.