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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
Preceded by Proterozoic Eon Phanerozoic Eon
Paleozoic Era Mesozoic Era Cenozoic Era
Cambrian Ordovician Silurian Devonian Carboniferous Permian Triassic Jurassic Cretaceous Paleogene Neogene 4ry

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.
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904 news items

R & D Magazine

R & D Magazine
Tue, 01 Sep 2015 06:52:30 -0700

According to Yale Univ., Anchiornis huxleyi, a feathered dinosaur that lived during the late Jurassic period in China, sported gray plumage, a reddish Mohawk and white feathers on its wings and legs, which ended in black tips. Examining 29 feather ...

National Geographic

National Geographic
Mon, 31 Aug 2015 12:09:11 -0700

We see in popular books and shows that dinosaurs started out small, running from all kinds of frightening reptiles and what not in the Triassic and then bam there's Allosaurus, and Brontosaurus, and Ceratosaurus, and Stegosaurus in the Late Jurassic ...
 
Smithsonian
Mon, 24 Aug 2015 06:41:15 -0700

The pterosaur specimen dates back to the Late Jurassic, about 161 to 146 million years ago. Paleontologists originally found this Rhamphorhynchus the Schernfeld quarry from Bavaria, Southern Germany in 1965. Now, the fossil is held by the Royal Tyrrell ...

NJ.com

NJ.com
Thu, 20 Aug 2015 04:09:59 -0700

A: Brachiosaurus, diplodocus and apatosaurus all appeared in the late Jurassic, about 150 to 145 million years ago. You're looking at about a 60-million-year difference. This is before many of the gigantic long-necked herbivores. Q: How were you able ...

io9

io9
Mon, 24 Aug 2015 14:20:41 -0700

The specimen dates back 146- to 161-million years, to the Late Jurassic, and is exceptionally well preserved. Its soft tissues, including its wing membranes, are in good shape, and its stomach is full of what paleontologists think was probably its last ...
 
Forbes
Fri, 21 Aug 2015 07:37:30 -0700

A fossil that preserves 3-D anatomical structure, gut contents, soft tissue, and a surprising coprolite? It might sound too good to be true—but it isn't! A new specimen of the winged flying reptile Rhamphorhynchus, a pterosaur, from the Late Jurassic ...

Hong Kong Standard

Hong Kong Standard
Wed, 02 Sep 2015 22:15:00 -0700

Another fossil featured at the exhibit is a replica of an ammonite fossil from the late Jurassic era. The museum says such fossils are important to palaeontology, serving as a reference to determine age and used to reconstruct ancient marine assemblages.

Telegraph.co.uk

TheBlaze.com
Fri, 30 Jan 2015 22:11:15 -0800

Measuring about 50 feet long, the Qijianglongis is thought to have been one of the largest dinosaurs of the time in Asia during the Late Jurassic, or about 160 million years ago. The name Qijianglongis means “dragon of Qijiang” because it was ...
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