Assertion: cycad | /r/AtLocation | their greatest diversity
Facets:
value: during jurassic
type: TEMPORAL
value: during the triassic
type: TEMPORAL
Source sentences:
text: Sometimes nicknamed ‘dinosaur plants’, cycads appeared on the earth about 300 million years ago and were at their greatest diversity during the Triassic and Jurassic (during the reign of the diplodocus and T-rex).