north america was a part of pangaea or pangea about 300 million years ago.
what land mass was north america a part of about 300 million years ago?
pangaea or pangea
na
na
after rodinia broke apart, its southern half traveled south and crossed the south pole while its northern half traveled northward to the north pole. the two halves of rodinia eventually collided with the congo craton to form the supercontinent pannotia 600 million years ago. in contrast to rodinia, pannotia was short-lived. it rifted apart 545 million years ago, or only 65 million years after it formed. this resulted in the creation of at least four continents, namely baltica, siberia, gondwana and laurentia. by the early cambrian 514 million years ago, laurenta was located on the equator, baltica was south of laurenta, siberia was just south of the equator east of laurenta, and gondwana lied mostly in the southern hemisphere. subsequently, baltica, laurenta and microcontinent avalonia collided in the devonian period (416-359 million years ago) to form minor supercontinent euramerica. this eventually started to collide with gondwana and other landmasses to form supercontinent pangaea 255 million years ago. in the late triassic period some 152 million years ago, pangaea split into two minor supercontinents, namely gondwana and laurasia. the tgb represented a minor portion of western laurasia until it divided into eurasia and north america about 94 million years ago. since the middle miocene 14 million years ago, the tgb has been part of the americas, a minor north-south trending supercontinent comprising the continents of north america and south america.
temagami greenstone belt