NationMaster - Encyclopedia: Olenekian

The Olenekian (also known as the Yongningzhenian) is a stage of the Early Triassic epoch. It spans the time between 249.7 ± 0.7 Ma and 245 ± 0.7 Ma (million years ago). Faunal stages are a subdivision of geologic time used primarily by paleontologists who study fossils rather than by geologists who study rock formations. ... Jump to: navigation, search The Early Triassic (also known as Lower Triassic, Buntsandstein, or Scythian) is the first of three epochs of the Triassic period. ... The word epoch can mean either an interval of time, or a particular point in time used as a reference point. ... Mega-annum, usually abbreviated as Ma, is a unit of time equal to one million years. ...

Categories: Geology stubs | Triassic The Triassic is a geologic period that extends from about 245 to 202 million years ago (mya). ... Jump to: navigation, search The Early Triassic (also known as Lower Triassic, Buntsandstein, or Scythian) is the first of three epochs of the Triassic period. ... Jump to: navigation, search The Middle Triassic (also known as Muschelkalk) is the second of three epochs of the Triassic period. ... Jump to: navigation, search The Late Triassic (also known as Upper Triassic, or Keuper) is the third and final of three epochs of the Triassic period. ... Jump to: navigation, search The Induan (also known as the Feixianguanian) is the first stage of the Early Triassic epoch. ... Jump to: navigation, search In the geologic timescale, the Anisian is the age of the Middle Triassic epoch of the Triassic period of the Mesozoic era of the Fanerozoic eon that is comprehended between 245 million and 237 million years ago, approximatedly. ... Jump to: navigation, search The Ladinian (also known as the Falangian) is a stage of the Middle Triassic epoch. ... Jump to: navigation, search The Carnian is a stage on the geologic time scale occuring from 228 +/- 2 to 216. ... Jump to: navigation, search The Norian Stage was a portion of the Triassic geological period. ... Jump to: navigation, search The Rhaetian Stage is the most recent stage of the Late Triassic. ...