digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

System/
Period
Series/
Epoch
Stage/
Age
Age (Ma)
Cretaceous Lower/
Early
Berriasian younger
Jurassic Upper/
Late
Tithonian 145.0–152.1
Kimmeridgian 152.1–157.3
Oxfordian 157.3–163.5
Mid/
Middle
Callovian 163.5–166.1
Bathonian 166.1–168.3
Bajocian 168.3–170.3
Aalenian 170.3–174.1
Lower/
Early
Toarcian 174.1–182.7
Pliensbachian 182.7–190.8
Sinemurian 190.8–199.3
Hettangian 199.3–201.3
Triassic Upper/
Late
Rhaetian older
Subdivision of the Jurassic system
according to the IUGS, as of July 2012.

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 ± 4.0 million years ago (Ma), which is preserved in Upper Jurassic strata.[1] In European lithostratigraphy, the name "malm" indicates rocks of Late Jurassic age. In the past, this name was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units.

Subdivisions[edit]

The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock:

  Tithonian (150.8 ± 4.0 – 145.5 ± 4.0 Ma)
  Kimmeridgian (155.7 ± 4.0 – 150.8 ± 4.0 Ma)
  Oxfordian (161.2 ± 4.0 – 155.7 ± 4.0 Ma)

Paleogeography[edit]

During the Late Jurassic epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow.

Life forms of the epoch[edit]

This epoch is well known for many famous types of dinosaurs, such as the sauropods, the theropods, the thyreophorans, and the ornithopods. Other animals, such as crocodiles and the first birds, appeared in the Jurassic. Listed here are only a few of the many Jurassic animals:

References[edit]

  1. ^ Owen 1987.
Jurassic Period
Lower/Early Jurassic Middle Jurassic Upper/Late Jurassic
Hettangian | Sinemurian
Pliensbachian | Toarcian
Aalenian | Bajocian
Bathonian | Callovian
Oxfordian | Kimmeridgian
Tithonian

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Late_Jurassic — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.

1664 news items

NEWS10 ABC

NEWS10 ABC
Fri, 12 Feb 2016 08:41:15 -0800

WOODLAND PARK, Colo. — Nearly 92 million years ago, a prehistoric fish was part of the seas. “Going off of certain, really close relatives from the late Jurassic and early Cretaceous of Europe, we think that this kind of eel-like animal is about 10 ...

Financial Times

Financial Times
Fri, 12 Feb 2016 08:30:00 -0800

Although nectar-producing flora had not yet evolved, some plants in the late Jurassic era produced sugary pollen drops inside deep reproductive structures, which kalligrammatids would have sucked up — fertilising the plants in the process by ...

Entomology Today

Entomology Today
Fri, 12 Feb 2016 06:48:45 -0800

Eusociality is thought to have appeared first in termites in the Late Jurassic, about 150-160 million years ago, but the earliest termite fossils that could definitively be tied to a caste system were from the Miocene, a mere 20 to 17 million years ago ...
 
R & D Magazine
Thu, 11 Feb 2016 13:33:45 -0800

Prior to the discovery, researchers had postulated that eusociality first appeared during the Late Jurassic period, about 150-160 million years ago. However, the only physical evidence dated to between 17 and 20 million years ago during the Miocene ...

National Geographic

National Geographic
Mon, 08 Feb 2016 09:27:57 -0800

Earlier this year, in Biology Letters, fossil cephalopod expert Christian Klug and colleagues described a pair of special belemnitid fossils found in the Late Jurassic limestone of Germany. On a superficial level these specimens of Acanthoteuthis look ...

National Geographic

National Geographic
Fri, 22 Jan 2016 04:00:00 -0800

The new dinosaur, found in the Late Jurassic rock of northwestern China, has been named Hualianceratops wucaiwanensis by the researchers. And while it looked relatively similar to another early horned dinosaur found in the same formation, Yinlong ...

Observer-Reporter

Observer-Reporter
Mon, 08 Feb 2016 18:37:30 -0800

Scaphognathus was a pterosaur that lived in what is now Germany during the Late Jurassic about 150 million years ago. This fossil preserves an incomplete adult with a 3-foot wingspan and was recovered from the Solnhofen strata near Eichstätt, Germany.

ValueWalk

ValueWalk
Thu, 10 Dec 2015 06:30:18 -0800

Fossils of the new species were discovered in the Gobi Desert in China's Xinjiang province. Fossil remains revealed that the spaniel-sized dinosaur was a plant-eating modest creature that lived about 160 million years ago in the early Late Jurassic Period.
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight