What is Jurassic?

  • (noun): From 190 million to 135 million years ago; dinosaurs; conifers.
    Synonyms: 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; that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes 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 event. However, the end of the period did not witness any major extinction event. The Jurassic is named after the Jura Mountains within the European Alps, where limestone strata from the period was first identified.

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Some articles on Jurassic:

List Of African Dinosaurs - List of African Dinosaurs
... Name Period Diet Notes Aardonyx Jurassic herbivore — Abrictosaurus Jurassic herbivore — Aegyptosaurus Cretaceous herbivore — Aetonyx Jurassic herbivore Probably ...
Jurassic - Flora
... The arid, continental conditions characteristic of the Triassic steadily eased during the Jurassic period, especially at higher latitudes the warm, humid climate ... were relatively diverse during the Jurassic period ... Extant conifer families that flourished during the Jurassic included the Araucariaceae, Cephalotaxaceae, Pinaceae, Podocarpaceae, Taxaceae and Taxodiaceae ...
List Of Sarcopterygians - Scope and Terminology - Age
... uTri is Upper Triassic lJur is Lower Jurassic mJur is Middle Jurassic uJur is Upper Jurassic lCret is Lower Cretaceous uCret is Upper Cretaceous Genera that are invalid, misidentified, or otherwise do not ...
... a diverse suborder of ammonite cephalopods that lived during the Jurassic and Cretaceous periods of the Mesozoic Era ... Lower Jurassic superfamlies include the Psilocerataceae, Eocerocerataceae, and Hildoceratoidea, which is in part Middle Jurassic ... Superfamilies from the Middle and Upper Jurassic include the Stephanoceratacea, Perispinctaceae, and Haploceratoidea the Perispinctaceae and Haploceratacea continued well into the Cretaceous ...
Temporal Paradox (paleontology) - Problems
... to be older than Archaeopteryx, perhaps Early Jurassic or even older ... dinosaurs actually had been known from Jurassic deposits in China, North America, and Europe for many years ... For example, the femur of a tiny maniraptoran from the Late Jurassic of Colorado was reported by Padian and Jensen in 1989 while teeth of dromaeosaurids and ...