Non User
Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z	Business Non User Industries Finance Tax

Home > Permian Basin

See also: University of Texas of the Permian Basin

External link

• About the Permian Basin

Politics	Business	Finance

Topics: Permian Basin Texas Western Named Link University External...

---

PermianThe Permian is a geologic period that extends from about 280 to 248 million years before the present ( mya). As with most older geologic periods, the strata that define the Permian are well identified, but the exact date of the period's start is uncertain Permian-Triassic extinction eventThe Permian-Triassic extinction event was an extinction event that occurred approximately 252 million years ago (mya), forming the boundary of the Permian and Triassic periods. It was the Earth's most severe extinction event, with about 90 percent of all Permian BasinThe Permian Basin is a basin in the western part of the U. state of Texas, so named because it has one of the thickest deposits of rocks from the Permian geologic period in the world. See also University of Texas of the Permian Basin External link .