Based upon those fossils, they will have to draw a map showing what environments were present in a certain area more than 70 million years ago.
(they; to draw; a map showing what environments were present in a certain area more than 70 million years ago) (a map; showing; what environments were present in a certain area more than 70 million years ago) Context(a map showing,List([49, 62))):(what environments; were; present in a certain area more than 70 million years ago)
a map showing,List([49, 62))
they a map what environments
to draw showing were
a map showing what environments were present in a certain area more than 70 million years ago
what environments were present in a certain area more than 70 million years ago
present in a certain area more than 70 million years ago