Appendix:geologic Timescale Definition
Matching Results for Appendix:geologic Timescale:
PlioceneOf a geologic epoch within the Neogene period from about 5.3 to 1.7 million years ago; marked by the appearance of man 's first ancestors A The Pliocene ...
Paleogene
Of a geologic period within the Cenozoic era; comprises the Paleocene, Eocene and Oligocene epochs from about 65 to 23 million years ago. A The Paleogene ...
Mississippian
Of a geologic epoch within the Carboniferous period from about 359 to 318 million years ago; marked by glaciation and the appearance of the first trees ...
Mesozoic
Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life ...
Guadalupian
Of a geologic epoch within the Permian period from about 270 to 260 million years ago; marked by the presence of gymnosperms A The Guadalupian epoch.
Lopingian
of a geologic epoch within the Permian period from about 260 to 251 million years ago; marked by the formation of the Pangea supercontinent A the ...
Paleoarchean
Of a geologic era within the Archaean eon from about 3600 to 3200 million years ago; the first aerobic bacteria appeared at this time. A The Paleoarchean era.
Cisuralian
of a geologic epoch within the Permian period from about 299 to 270 million years ago; marked by the appearance of beetles and flies A the Cisuralian epoch
Cretaceous
The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago 1992, Rudolf M. Schuster, The ...
Jurassic
Of or pertaining to the second period of the Mesozoic era, a time still dominated by dinosaurs. 1990, Michael Crichton, Jurassic Park, Alfred A. Knopf, p ...
Paleocene
Of or pertaining to a geologic epoch within the Paleogene period from about 65 to 56 million years ago; marked by the rise of the first large mammals in a ...
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