Assertion: cretaceous monotreme | /r/HasProperty | placed within the platypus family
Facets:
value: on the basis of molecular studies
type: CAUSE
value: on dental structure
type: OTHER
value: recently
type: TEMPORAL
Source sentences:
text: …recently this Cretaceous monotreme (Steropodon galmani, known by a stunning opalized jaw) was placed within the platypus family, but, partly on the basis of molecular studies and partly on dental structure, it is now classified in its own family, Steropodontidae.