Assertion: marsupial's tail | /r/HasProperty | collarbone
Facets:
Source sentences:
text: The discovery of complete skeletons preserving both the tail and clavicles (collarbones) in Australia's Komatsu Cave in the town of Naracoorte and Flight Star Cave in the Nullarbor Plain, indicate the marsupial lion had a thick, stiff tail that comprised half the spinal column's length.