permian system
1Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… …
2Permian — For the language family, see Permic languages. For the high school, see Permian High School. For the geological basins, see Permian Basin. Permian Period 299–251 million years ago …
4Permian Basin — ▪ area, Texas, United States also called West Texas Basin large sedimentary basin in western Texas and southeastern New Mexico, U.S., noted for its rich petroleum, natural gas, and potassium deposits. Due to its economic importance, it is one… …
5Permian — adjective Etymology: Perm, former province in eastern Russia Date: 1841 of, relating to, or being the last period of the Paleozoic era or the corresponding system of rocks see geologic time table • Permian noun …
6Permian — /perr mee euhn/, adj. 1. Geol. noting or pertaining to a period of the Paleozoic Era occurring from about 280 to 230 million years ago and characterized by a profusion of amphibian species. See table under geologic time. n. 2. Geol. the Permian… …
7Permian — Per•mi•an [[t]ˈpɜr mi ən[/t]] adj. 1) gel noting or pertaining to a period of the Paleozoic Era occurring from about 280 million to 230 million years ago, a time of mass extinctions and a profusion of amphibian species 2) gel the Permian Period… …
8Permian — /ˈpɜmiən / (say permeeuhn) adjective 1. relating to the latest Palaeozoic geological period or system. –noun 2. the period or system following Carboniferous and preceding Triassic, characterised by prominence of salt deposits and, in the Southern …
9Permian — adj. & n. Geol. adj. of or relating to the last period of the Palaeozoic era with evidence of the development of reptiles and amphibians, and deposits of sandstone. Usage: Cf. Appendix II. n. this period or system. Etymology: Perm in Russia …
10Karoo System — ▪ geological system, Africa also spelled Karroo geologic system of rocks outcropping over a 1,560,000 square kilometre (600,000 square mile) area of Africa from the Equator south to the Cape of Good Hope. The time span of the Karoo System …
