Assertion: ostrich's family | /r/HasProperty | gastornithidae
Facets:
Source sentences:
text: Following this, several authors began to recognize a greater degree of similarity between the European and North American birds, often placing both in the same order (Gastornithiformes) or even family (Gastornithidae).
text: Gastornis and its close relatives are classified together in the family Gastornithidae, and were long considered to be members of the order Gruiformes.
text: The Chuckanut tracks are named as the ichnotaxon Rivavipes giantess, inferred to belong to the extinct family Gastornithidae.