Assertion: angiosperm | /r/HasProperty | derived
Facets:
value: from the pteridospermales
type: OTHER
value: from the cycadeoidales
type: LOCATION
Source sentences:
text: It is not clear whether the flowering plants are derived from the Pteridospermales or the Cycadeoidales; however, in both groups the potential existed for modification of the plant body and the reproductive tissue to be responsive to both the physical and biological environments of the Mesozoic Era (about 252.2 million to 66 million years ago).