"The Permian is a very significant asset in our North America portfolio.".    From Wordnik.com.  [Chevron Rekindles Old Texas Flame] Reference

The Permian was a time of pronounced changes in plant and animal life, and a transitional period between two great eras.    From Wordnik.com.  [The Elements of Geology] Reference

This is what is known as the Permian-Triassic Extinction, but sometimes it will simply be referred to as the Great Dying.    From Wordnik.com.  [RealClimate] Reference

Tens of millions of years before dinosaurs roamed Earth, their ancestors were all but eliminated in a catastrophic event called the Permian Mass Extinction.    From Wordnik.com.  [YubaNet.com] Reference

Sesia Valley's caldera erupted during the "Permian" geologic time period, say the discovery scientists.    From Wordnik.com.  [NASA Earth Observatory] Reference

Climate cold at beginning of the Permian then warms.    From Wordnik.com.  [Geologic time] Reference

Permian system, appear especially around the basin of Sofia.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference

Awesome. Last seen The Permian extinction (250 million years ago).    From Wordnik.com.  [The Best: Extinct Animals, From an Elephant Bird to a 10-Foot-Long, Four-Eyed Spider] Reference

Permian, which has 2,100 students, isn't an especially dangerous campus.    From Wordnik.com.  [Schools On The Alert] Reference

Soils formed in material primarily from Quaternary, Triassic, and Permian sediments.    From Wordnik.com.  [Ecoregions of New Mexico (EPA)] Reference

A frenzy of hydrocarbon burning at the end of the Permian period may have led to.    From Wordnik.com.  [Ellen Futter: Adapt We Must: What the Dinosaurs Can Teach Us About Current Challenges] Reference

Springs are abundant, especially at the contact between sand and the underlying Permian redbeds.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

The region is composed of mostly Permian rocks compared to the Triassic materials of Ecoregion 26n.    From Wordnik.com.  [Ecoregions of New Mexico (EPA)] Reference

Last seen At the beginning of the Permian period (290 million years ago) — and in your nightmares.    From Wordnik.com.  [The Best: Extinct Animals, From an Elephant Bird to a 10-Foot-Long, Four-Eyed Spider] Reference

It was Permian high school, Permian -- which is a famous high school, famous high school football team.    From Wordnik.com.  [CNN Transcript Sep 10, 2004] Reference

The Red Prairie is nearly level to rolling and underlain by Permian sandstone, shale, gypsum, and siltstone.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

During the Permian all of the continental plates were connected forming the super continent known as Pangaea.    From Wordnik.com.  [Plate tectonics] Reference

The Rolling Red Hills (27q) ecoregion is mostly underlain by red, Permian-age sandstone, shale, and siltstone.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

The grass - and shrub-covered Broken Red Plains ecoregion is mostly underlain by Permian-age sandstone and shale.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

The rolling hills of the Northwestern Cross Timbers are underlain by Permian-age sandstone, siltstone, and shale.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

The amphibious monsters and the gigantic tree-ferns of the Permian age still flourished in the warm damp climates.    From Wordnik.com.  [The Story of Atlantis and the Lost Lemuria] Reference

The Limestone Plains ecoregion is composed of thin strata of Permian-age limestone, sandy limestones, and mudstone.    From Wordnik.com.  [Ecoregions of Texas (EPA)] Reference

These events occurred in the Late Ordovician, Late Devonian, Permian, Triassic and an occurrence called the K/T event.    From Wordnik.com.  [Edenic Period] Reference

But the last time the world warmed by six degrees so fast was at the end of the Permian period, 251 million years ago.    From Wordnik.com.  [Johann Hari: The Choice at Copenhagen: Heroism, or Collective Suicide] Reference

The largest mass extinction event in the earth's history occurred at the end of the Permian period, 245 million years ago.    From Wordnik.com.  [AP Environmental Science Chapter 5- The Biosphere] Reference

Laura spends more time discussing the geology of the Permian Basin than explaining her rapid-fire relationship with George.    From Wordnik.com.  [Ruth Marcus reviews Laura Bush's memoir, 'Spoken From the Heart'] Reference

The author shows that India has been a continent with enormous fresh-water lakes from the Permian period to the present day.    From Wordnik.com.  [Alfred Russel Wallace: Letters and Reminiscences, Vol. 1] Reference

Further, what was the connexion between this land and Australia which we must equally assume to have existed in Permian times?.    From Wordnik.com.  [The Story of Atlantis and the Lost Lemuria] Reference

Instead, the biggest field in Texas, and the second biggest in the U.S. is the Spraberry Trend in the Permian Basin of West Texas.    From Wordnik.com.  [BP's Gulf Well: One Of America's Biggest Oil Fields?] Reference

Erosion by the Brazos and Colorado rivers has removed the overlying Cretaceous limestones to expose the Permian sedimentary rocks.    From Wordnik.com.  [Ecoregions of Texas (EPA)] Reference

It is characterized by sandstones and shales, which were laid down by riverine sediments from the Late Permian to the Mid Triassic.    From Wordnik.com.  [Eastern Australian temperate forests] Reference

During the Permian Period several thousand feet of brick-red shales, siltstone, sandstones, and gypsum were deposited in this region.    From Wordnik.com.  [Ecoregions of Kansas and Nebraska (EPA)] Reference

The lower (Permian) unit consists of glacio-marine sequences including tillite, sandstone, siltstone, mudstone and limestone horizons.    From Wordnik.com.  [Tasmanian Wilderness, Australia] Reference

The Prairie Tableland ecoregion is nearly level, dominated by cropland, and underlain by Permian red shale, soft sandstone, and siltstone.    From Wordnik.com.  [Ecoregions of Oklahoma (EPA)] Reference

On its eastern margin in Mount Cook National Park, the schist gradually changes back into Permian-Triassic greywacke of a separate terrain.    From Wordnik.com.  [Te Wahipounamu (South-West New Zealand World Heritage Area), New Zealand] Reference

The major sedimentary basins in the north are the coal bearing Permian-Triassic Bowen Basin, and the Carboniferous-Devonian Drummond Basin.    From Wordnik.com.  [Brigalow tropical savanna] Reference