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.
1 videos found

https://youtube.com/devicesupport

https://youtube.com/devicesupport http://m.youtube.com

 
1 videos found

935 news items

Mashable

Mashable
Wed, 20 May 2015 20:22:30 -0700

Exposed fossil bones of a camarasaurus -- a late Jurassic age plant-eating dinosaur -- at Carnegie Dinosaur Quarry. Image: Scott Smith/Corbis. Headshot_2015_jessicaplautz_1. By Jessica Plautz 3 days ago. The ongoing interest in dinosaur movies — of ...

WREX-TV

WREX-TV
Tue, 05 May 2015 10:26:15 -0700

Snapshots in Time: The Unique Paleofauna of the Solnhofen Limestone showcases some of the world's rarest Late Jurassic fossils discovered in the Solnhofen Limestone, of southern Germany. You can also see the oldest bird to ever be discovered. There is ...

Lost Coast Outpost

Lost Coast Outpost
Sun, 17 May 2015 08:17:35 -0700

Birds evolved from a branch of saurischian dinosaurs known as theropods during the late Jurassic, about 160 million years ago. You might think of birds as the cousins of those dinosaurs that went became extinct: same lineage, but somehow able to escape ...
 
Satellite PR News (press release)
Tue, 12 May 2015 05:22:30 -0700

The Allosaurus is a genus of large theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period. Allosaurus was a large bipedal predator. Its skull was large and equipped with dozens of large, sharp teeth. Relative to the ...

Sci-News.com

Sci-News.com
Tue, 28 Apr 2015 04:05:41 -0700

An international team of paleontologists led by Dr Fernando Novas of the Bernardino Rivadavia Natural Sciences Museum in Buenos Aires has described a new genus and species of plant-eating dinosaur that roamed what is now Chile during the Upper ...

Discover Magazine (blog)

Discover Magazine (blog)
Wed, 29 Apr 2015 10:03:39 -0700

Scientists have long known that modern birds are the descendants of dinosaurs. Many small dinosaurs in the late Jurassic period even had feathers. Now, paleontologists in China say that they've identified the fossils of one of the earliest flying ...

National Geographic

National Geographic
Wed, 29 Apr 2015 10:02:41 -0700

In the late Jurassic period, when Yi lived, there were all manner of dinosaurs with varying shapes, sizes, and numbers of wings. It was a world of not-quite-birds and just-about-birds—and now bat-winged dinosaurs, too! “What a grand age of ...

Ithaca Journal

Ithaca Journal
Wed, 06 May 2015 14:47:52 -0700

A model of a Stegosaurus has arrived in the Town of Ithaca Thursday — in three pieces — for its new home at the. Paleontological Research Institution's Museum of the Earth . "Steggy" the Stegosaurus is a permanent gift from the Smithsonian ...
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