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pangea
a tectonic fault
sea floor spreding
sea floor spreding
pangea
Gentic testing
Precambrian
Mesozoic
age of rocks and fossils
cenozoic era
" The Precambrian is the name given for the first super eon of Earth's history" Mary Bagley http://www.livescience.com/43354-precambrian-time.html
" The Precambrian represents more than 80 percent of the total geologic record" Brain Frederick https://www.britannica.com/science/Precambrian-time
Home
pangea
a tectonic fault
sea floor spreding
sea floor spreding
pangea
Gentic testing
Precambrian
Mesozoic
age of rocks and fossils
cenozoic era