Around 515 million years ago, the Iapetus Ocean began to open along the Eastern Coast of North America, the Appalachian Mountains began to form, and the number of life forms expanded in the Cambrian Explosion ( see web abstract and links to figures from Ian Dalziel's paper Neoproterozoic-Paleozoic Geography and Tectonics, Geological Society of America Bulletin,1997, vol. 109, no. 1, p. 16-42 ).
(the Iapetus Ocean; began; to open along the Eastern Coast of North America; T:Around 515 million years ago) Context(the Iapetus Ocean began,List([30, 53))):(the Iapetus Ocean; began to open; L:along the Eastern Coast of North America) (the Appalachian Mountains; began; to form, and the number of life forms expanded in the Cambrian Explosion ( see web abstract and links to figures from Ian Dalziel's paper Neoproterozoic-Paleozoic Geography and Tectonics, Geological Society of America Bulletin,1997, vol. 109, no. 1, p. 16-42; T:Around 515 million years ago, the Iapetus Ocean began to open along the Eastern Coast of North America) Context(the Appalachian Mountains began,List([104, 135))):(the Appalachian Mountains; began to form; the number of life forms expanded in the Cambrian Explosion ( see web abstract and links to figures from Ian Dalziel's paper Neoproterozoic-Paleozoic Geography and Tectonics, Geological Society of America Bulletin,1997, vol. 109, no. 1, p. 16-42) (life forms; expanded; L:in the Cambrian Explosion)
the Iapetus Ocean began,List([30, 53)) the Appalachian Mountains began,List([104, 135))
the Iapetus Ocean the Iapetus Ocean the Appalachian Mountains the Appalachian Mountains life forms
began began to open began began to form expanded
to open along the Eastern Coast of North America T:Around 515 million years ago
L:along the Eastern Coast of North America
to form, and the number of life forms expanded in the Cambrian Explosion ( see web abstract and links to figures from Ian Dalziel's paper Neoproterozoic-Paleozoic Geography and Tectonics, Geological Society of America Bulletin,1997, vol. 109, no. 1, p. 16-42 T:Around 515 million years ago, the Iapetus Ocean began to open along the Eastern Coast of North America
the number of life forms expanded in the Cambrian Explosion ( see web abstract and links to figures from Ian Dalziel's paper Neoproterozoic-Paleozoic Geography and Tectonics, Geological Society of America Bulletin,1997, vol. 109, no. 1, p. 16-42
L:in the Cambrian Explosion