Texas was home to a massive river system during the Triassic.

They became extinct by the end of the Triassic period.

And they had first appeared in the Triassic, roughly 220 million years ago.

By the upper part of the Triassic period, their numbers began to increase again.

By this time, many groups of the Triassic period had become extinct.

There is a large area in the center of the state that belongs to the Triassic.

Only rock younger than the Triassic is known in this zone.

At the end of the Triassic another mass extinction occurred.

Later, during the Triassic period, the region became the floor of a shallow sea.

Or go back to the Triassic and film a wildlife show about dinosaurs?

Both the start and the end of the Triassic are marked by great extinction events.

The new research pushes the roots much further back, to the Triassic period 200 million years ago or earlier.

It was the last of three epochs which make up the Triassic period.

However, a number of genetic studies suggest a much earlier origin in the Triassic.

Nevada's sea level continued to drop during the Triassic period.

It would take well into the Triassic for life to recover from this catastrophe.

There are also a number of smaller extinct groups, mostly from the Triassic period.

The cave was formed in the Triassic period and is about 710 m long.

Rock salt was laid down in this region some 220 million years ago, during the Triassic period.

A very few of these survived into the Triassic.

They are from the Triassic period and date from 250 million years ago.

The last period of heightened earthquake activity probably took place during the Triassic, 200 million years ago.

After the extinction at the very end of the Triassic, the dinosaurs were the only large land animals left.

For the most part, these characteristics were not present in the Triassic ancestors of the mammals.

Now much further inland, the Triassic climate in the region was dry.

This series of rocks was formed in the triassic period.

In the northern end there are also rocks of triassic origin.

This 'Triassic takeover' may have contributed to the evolution of mammals.

The continents of the triassic Earth were configured differently to today.

A low moan echoed toward us and triassic tremors stroked my feet.

The bedrock in the area consists of triassic rock, mainly sandstone and conglomerate.

The hills are of a triassic limestone called Elmkalkstein.

Their remains are found in triassic strata of South Africa and India.

Formed in the triassic period.

Woutersia was a triassic symmetrodont and the only representative of its family.

The brickwork is red sandstone which was laid down during the triassic era, with dressings of Hamstone.

Unlike the sharp, recurved teeth of other triassic archosaurs, aetosaurs had simple, conical teeth.

Slate, as well as red triassic and grey jurassic and cretaceous rocks give the exposed areas of this mountain range striking colors.

Haycock is covered with numerous triassic diabase boulders, and is a bouldering destination with many established routes ranging from V0 to V10+.

The Thuringian Basin belongs to the triassic period, during which horizontal beds of Bunter sandstone, Muschelkalk and Keuper were laid down.

Bilzingsleben is located on the northern border of the Thuringian trough (Becken), an area formed of triassic Keuper stone.

Pliocene, miocene, eocene, cretaceous, jurassic, triassic, permian, carboniferous, devonian, silurian, or primitive was all one to me.

From west to east, the rocks constituting the island are sandstone of roughly devonian, carboniferous and cretaceous age, and some smaller areas with triassic and jurassic sandstone.

In 1823 he requested a mining concession and tried placer mining for gold in the late triassic Stubensandstein around neighboring Sternenfels where the Stubensand was produced.

In the north part of the upland, in the Bytom basin lays the broad range of the triassic rocks, from sandstones to limestones, with rich ore, zinc and lead reserves.

I wanted to have a look at the crocodile like creatures that where in the early triassic but from a cursory search it seems that Lystrosaurus - an early mammal type was dominate.

On the horizon the neighbouring conifer dressed hills of triassic sandstone stand out clearly: to the west the Ormont Mountain has its peak, at 900 meters, well clear of the tree line.

As parts of Cheshire were submerged by seawater during the triassic period, it is likely that the workers classified as "Workers in various mineral substances" were employed to work in salt mines.

Note: The Pantasma valley can not be "triassic" (250 to 200 million years B.C.) because it lies on the caribbean platter, that was formed between 140 and 70 B.C.

Some extinct members of the crocodilian line, a sister group to the dinosaurs and birds, also evolved bipedal forms - a crocodile relative from the triassic, Effigia okeeffeae, is believed to be bipedal.