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Latest Geologic time scale Stories

ediacaran life
2015-04-24 10:45:18

Long, long before the dinosaurs of the Jurassic Period, the Earth went through the Devonian and the Cambrian periods. And before those, the Ediacaran.

walking whales
2015-04-23 09:13:14

The theory that all animal life emerged from the sea has been well covered, but much less is known about the creatures that went back. Whales, dolphins, seals and sea turtles are examples of marine tetrapods--an exceptional group of animals that moved from the sea to the land and back again.

capitanian extinction
2015-04-16 11:41:07

Chuck Bednar for redOrbit.com - @BednarChuck New evidence of severe losses in brachiopods in the northern Boreal latitudes around the island of Spitsbergen suggest that the controversial Capitanian extinction event that occurred about 262 million years ago should be classified as a true “mass extinction” event. Previously, the Capitanian extinction event was known only from equatorial settings, and thus its status as a full-fledged global crisis was controversial. However, the...

Chicxulub impact
2015-04-07 11:35:34

For the first time, scientists plan to conduct an expedition to collect and analyze core samples from the 125-mile-wide Chicxulub impact site in Mexico, a crater believed to have been caused by the asteroid that wiped out the dinosaurs more than 65 million years ago.

Little Foot
2015-04-02 11:11:51

Using advanced dating techniques, a team of researchers from Purdue University and colleagues from France, Canada and South Africa have discovered that the rare and nearly complete “Little Foot” Australopithecus skeleton is among the oldest hominid remains ever discovered.

asteroid crater australia
2015-03-24 09:11:54

A nearly 250 mile (400 km) wide impact zone recently discovered in Central Australia is being called the largest asteroid-caused craters ever discovered, according to research published earlier this month in the international earth sciences journal Tectonophysics.

78373679 (1)
2015-03-12 12:54:04

This, we are told, is the Anthropocene, the Age of Man. But just what does that mean and when did the current age begin?

t. rex
2015-01-14 15:10:07

For years, North American fossils have been the guide post for the late Cretaceous extinction. Now, scientists are finding European fossils have just as much of a story to tell.

global warming
2014-12-16 08:21:44

This isn't the first time global warming has occurred. But will we survive it again?

Cambrian Explosion
2014-11-05 05:31:58

In devising his theories about evolution, Darwin theorized that species evolved on Earth slowly over millions of years. However, the fossil record doesn’t agree with the slow-and-steady model as a massive explosion of species took place 530 million years ago during the Cambrian era.


Latest Geologic time scale Reference Libraries

Palaeovespa
2014-04-18 16:08:43

Palaeovespa is a genus of wasps that holds seven species, all of which are extinct. Two of the species were discovered in Baltic amber deposits from Europe dating back to the middle Eocene era, while the other five were found in Florissant Formation amber from the Priabonian stage era in Colorado in the United States. This genus, and four of its species, was first described in 1906 by Dr. Theodore Cockerell in the Bulletin of the Museum of Comparative Zoology. Cockerell described all but one...

Australopithecus africanus
2013-11-29 10:55:07

Australopithecus africanus was an early hominid, an australopithecine that lived between roughly 3.03 and 2.04 million years ago in the later Pliocene and early Pleistocene. Au. africanus was of slender build and was thought to have been a direct ancestor of modern humans. Fossil remains signify that Au. africanus was considerably more like modern humans that Au. afarensis, with a more human-like cranium permitting a larger brain and more humanoid facial features. This hominid has only been...

Tenontosaurus
2013-01-29 09:53:30

Image Caption: Head of Tenontosaurus, Institut de paléontologie humaine, Paris, France. Credit: Rémih/Wikipedia (CC BY-SA 3.0) Tenontosaurus, meaning “sinew lizard”, is a genus of medium to large sized ornithopod dinosaur. The genus is known from the late Aptian to Albian ages of the middle Cretaceious period sediments of western North America, dating roughly between 115 to 108 million years ago. It was formerly thought to be a ‘hypsilophodont’, but since Hypsilophodontia is no...

Geologic Clock With Events And Periods
2012-11-18 19:10:56

The Neoproterozoic is the third of three subdivisions of the Proterozoic Eon (occurring from 1 billion years ago to 542 million years ago). This terminal era of the Proterozoic is itself divided into three sub-periods called the Tonian, Cryogenian, and Ediacaran Periods. The most severe glaciation known in the geologic record occurred during the Cryogenian Period, when ice sheets reached the equator and formed a possible “Snowball Earth.” And the earliest fossils of multi-cellular life...

Geologic Clock With Events And Periods
2012-11-18 19:08:04

The Paleoproterozoic is the first of three subdivisions of the Proterozoic Eon (occurring from 2.5 billion to 1.6 billion years ago (Ga). This period is marked by the first stabilization of the continents, and also when cyanobacteria--a type of bacteria that uses biochemical processes of photosynthesis to produce oxygen--evolved. Experts have found paleontological evidence that during at least part of the Paleoproterozoic era, about 1.8 Ga, the earth year was about 450 days long, with days...

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Word of the Day
dipsas
  • A serpent whose bite was fabled to produce intense thirst.
The word 'dipsas' comes from a Greek word meaning 'thirst'.