Fossils show us that: the first organisms on the planet were similar to living blue-green algae, there was a great diversification of multicellular animals in the oceans about 540 million years ago, the first plants lived on land about 400 million years ago, four-legged creatures first walked on land about 350 million years ago, dinosaurs evolved about 220 million years ago, and mammals and modern birds became very diverse about 65 million years ago.
(four-legged creatures; walked; L:on land; T:about 350 million years ago; T:first) (the first organisms on the planet; were; similar to living blue-green algae) Context(the first organisms on the planet were,List([22, 60))):(Fossils; show; us; that) Context(Fossils show the first organisms on the planet were,List([0, 60))):(dinosaurs; evolved; T:about 220 million years ago; T:four-legged creatures first walked on land about 350 million years ago) (mammals and modern birds; became; very diverse; T:about 65 million years ago) (the first plants; lived; L:on land; T:about 400 million years ago; T:about 540 million years ago)
the first organisms on the planet were,List([22, 60)) Fossils show the first organisms on the planet were,List([0, 60))
four-legged creatures the first organisms on the planet Fossils dinosaurs mammals and modern birds the first plants
walked were show evolved became lived
L:on land T:about 350 million years ago T:first
similar to living blue-green algae
us that
T:about 220 million years ago T:four-legged creatures first walked on land about 350 million years ago
very diverse T:about 65 million years ago
L:on land T:about 400 million years ago T:about 540 million years ago