Assertion: southern iapetus ocean | /r/CapableOf | open 550 ma
Facets:
value: between laurentia
type: LOCATION
value: in the ediacaran–cambrian transition
type: LOCATION
value: between southwestern gondwana
type: LOCATION
Source sentences:
text: The southern Iapetus Ocean opened between Laurentia and southwestern Gondwana (now South America) about 550 Ma in the Ediacaran–Cambrian transition.