Tag: Geologic time scale
Holocene Epoch
The Holocene is a geological epoch which began at the end of the Pleistocene (at 11,700 calendar years BP) and continues to the present....
Pleistocene Epoch
The Pleistocene is the geological epoch which lasted from about 2,588,000 to 11,700 years ago, spanning the world's recent period of repeated glaciations.
Charles Lyell...
Quaternary Period
The Quaternary Period /kwəˈtɜrnəri/ is the most recent of the three periods of the Cenozoic Era in the geologic time scale of the ICS.It...
Pliocene Epoch
The Pliocene is the period in the geologic timescale that extends from 5.332 million to 2.588 million years before present. It is the second...
Miocene Epoch
The Miocene is the first geological epoch of the Neogene period and extends from about 23.03 to 5.332 million years ago (Ma). The Miocene...
Neogene Period
The Neogene is a geologic period and system in the International Commission on Stratigraphy (ICS) Geologic Timescale starting 23.03 ± 0.05 million years ago...
Oligocene Epoch
The Oligocene is a geologic epoch of the Paleogene period and extends from about 33.9 million to 23 million years before the present (33.9±0.1...
Eocene Epoch
The Eocene epoch, lasting from 56 to 33.9 million years ago, is a major division of the geologic timescale and the second epoch of...
Paleocene Epoch
The Paleocene or Palaeocene, the "old recent", is a geologic epoch that lasted from about 66 to 56 million years ago. It is the...
Paleogene Period
The Paleogene is a geologic period and system that began 66 and ended 23.03 million years ago and comprises the first part of the...
Upper Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous period is divided in the geologic timescale. Rock strata...
Lower Cretaceous
The Early Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous....
Cretaceous Period
The Cretaceous , derived from the Latin "creta" (chalk), usually abbreviated K for its German translation Kreide (chalk), is a geologic period and system...
Upper Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.2 ± 4.0 to 145.5 ±...
Middle Jurassic
The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from 176 to 161 million years ago. In European lithostratigraphy, rocks...
Lower Jurassic
The Early Jurassic epoch (in chronostratigraphy corresponding to the Lower Jurassic series) is the earliest of three epochs of the Jurassic period. The Early...
Jurassic Period
The Jurassic is a geologic period and system that extends from 201.3± 0.6 Ma (million years ago) to 145± 4 Ma; from the end...
Lower Triassic
The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 252.2 ±...
Middle Triassic
In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in...
Upper Triassic
The Late Triassic is in the geologic timescale the third and final of three epochs of the Triassic period. The corresponding series is known...
