Tag: Geologic time scale

What is K-T Boundary? The Cretaceous–Tertiary extinction event, now called the Cretaceous–Palaeogene extinction event. It may be called the K/T extinction event or K/Pg event...

What is the K-Pg Boundary? The Cretaceous–Paleogene (K–Pg) extinction event, was a sudden mass extinction of some three-quarters of the plant and animal species on...

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....

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...

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...

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...

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...

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...

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...

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...

The Paleocene or Palaeocene, the "old recent", is a geologic epoch that lasted from about 66 to 56 million years ago. It is the...

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...

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...

The Early Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous....

The Cretaceous , derived from the Latin "creta" (chalk), usually abbreviated K for its German translation Kreide (chalk), is a geologic period and system...

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 ±...

The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from 176 to 161 million years ago. In European lithostratigraphy, rocks...

The Early Jurassic epoch (in chronostratigraphy corresponding to the Lower Jurassic series) is the earliest of three epochs of the Jurassic period. The Early...

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...

The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 252.2 ±...