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Cenozoic
Cenozic means "New Life" in Greak. To history it means the current and most recent of the three Phanerozoic geological eras and is the area from 65.5 million years ago to the present. -
Ordovician
The Ordovician, named after the Celtic tribe of the Ordovices. It is 1 out of 6 section in the Paliozoic Era. And covers the time between 488.3±1.7 to 443.7±1.5 million years ago. It follows the Cambrian Period and is followed by the Silurian Period. -
Silurian
Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 million years ago, to the beginning of the Devonian Period, about 416.0 ± 2.8 Million years ago. The base of the Silurian is set at a major extinction event when 60% of marine species were wiped out. -
Devonian
Devonian The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya million years ago, to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Million years ago. It is named after Devon, England, where rocks from this time spand where found and examinded. During the Devonian Period the first ray finned and lobe-finned bony fish evolved. -
Carboniferous
Carboniferous is a geologic period and system that extends from the end of the Devonian Period, about 359.2 ± 2.5 million years ago, to the beginning of the Permian Period, about 299.0 ± 0.8 million years ago. Carboniferous comes form the Latin word "Coal". -
Permian
Permian is a geologic period and system for land vertebrates of the early amniotes into the ancestral groups of the mammals, turtles, lepidosaurs and archosaurs. The Permian Period follows the Carboniferous and extends from 299.0 ± 0.8 to 251.0 ± 0.4 million years before the present. It is the last period of the Paleozoic Era and famous for its ending, the largest mass extinction known to science. -
Triassic
Triassic is a geologic period that extended from about 250 to 200 million years ago. As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events. -
Jurassic
Jurassic is a geologic period and system that extends from about 199.6± 0.6 million years ago to 145.5± 4 Million years ago. Triassic to the beginning of the Cretaceous. Jurassic is the middle period of the Mesozoic Era, also known as the Age of Reptiles. The start of the period is marked by the major Triassic–Jurassic extinction. -
Cretaceous
Cretaceous is from the Latin "creta" (chalk). This a geologic period and system from circa 145.5 ± 4 to 65.5 ± 0.3 million years ago. In the geologic timescale, the Cretaceous follows the Jurassic Period and is followed by the Paleogene Period of the Cenozoic Era. It is the youngest period of the Mesozoic Era, and at 80 million years long, the longest period of the Phanerozoic Eon. -
Tertiary
The Tertiary is atime span starting at 65 million to 2.6 million years ago. The Tertiary covered the time span between the Secondary period and the Quaternary. It began with theextinction of the non-avian dinosaurs in the Cretaceous–Tertiary extinction event. -
Quaternary
Quaternary Period is the most recent of the three periods of the Cenozoic Era in the geologic time scale. It follows the Neogene Period, spanning 2.588 ± 0.005 million years ago to the present. The Quaternary includes two geologic epochs: the Pleistocene and the Holocene.
