They are folded and faulted, and are of Paleozoic age. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
Precambrian and Paleozoic rock underlies Ecoregion 66d. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
Two great animal faunas dominated the seas during the Paleozoic. From Wordnik.com. [Paleozoic] Reference
Paleozoic marine and nearshore deposits underlie much of the region. From Wordnik.com. [Western Great Lakes forests] Reference
Geology is mostly Paleozoic limestone, dolomite, shale, and sandstone. From Wordnik.com. [Ecoregions of New Mexico (EPA)] Reference
Paleozoic sedimentary rock is typical and coal mining occurs in several areas. From Wordnik.com. [Ecoregions of the United States-Level III (EPA)] Reference
Precambrian and Paleozoic metavolcanic and igneous rock underlie Ecoregion 66a. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
There are some low mountains (760-920 meters (m)) on Paleozoic rocks in Kysyl Kum. From Wordnik.com. [Central Asian southern desert] Reference
Life on Earth continued to evolve, and in the late Paleozoic, gymnosperms appeared. From Wordnik.com. [Forest biome] Reference
The Paleozoic took up over half of the Phanerozoic, approximately 300 million years. From Wordnik.com. [Paleozoic] Reference
< 7 > Near the close of the Paleozoic time, vegetation assumed a higher form of life. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
But the desolate rock-strewn terrain stretched out before them as devoid of life as the Paleozoic. From Wordnik.com. [A World Called Crimson] Reference
But, toward the close of the Paleozoic time, we meet with representatives of the backbone family. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
Underlying Ecoregion 67 are largely Paleozoic sedimentary rocks that have been folded and faulted. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
The ridge-forming strata are composed of folded, interbedded Paleozoic sandstone and conglomerate. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
Inceptisols, Ultisols, and Alfisols have developed on the Cambrian, Paleozoic, and Precambrian rock. From Wordnik.com. [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference
There is a laboratory of invertebrate paleontology of Paleozoic age, with a corps of paleontologists. From Wordnik.com. [Scientific American Supplement, No. 484, April 11, 1885] Reference
The western Blue Mountains contain some of the oldest rocks in Oregon dated to the Paleozoic formation. From Wordnik.com. [Blue Mountains forests] Reference
Much of the region consists of hills of Paleozoic limestone that have been dissected by chemical weathering. From Wordnik.com. [Kayah-Karen montane rain forests] Reference
"So that, on the lowest estimate, we must place the origin of the Mammalia very far back in Paleozoic times.". From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
As waters flow through the delta, they pass over Pleistocene and recent alluvium overlying Paleozoic sandstone. From Wordnik.com. [Inner Niger Delta flooded savanna] Reference
Paleozoic substrates such as granite, schist, micaschist, diorite, and gneiss are found on Corsica and Sardinia. From Wordnik.com. [Tyrrhenian-Adriatic sclerophyllous and mixed forests] Reference
The class Mammalia, to which man belongs, had no representative on the earth during the extended Paleozoic time. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
A favorite exercise in introductory paleontology courses is to invent mnemonics for the periods of the Paleozoic. From Wordnik.com. [Paleozoic] Reference
The partly forested Driftless Area (52) is underlain by carbonate-rich Paleozoic strata, and is covered by loess. From Wordnik.com. [Ecoregions of Illinois (EPA)] Reference
By the end of the Paleozoic, cycads, glossopterids, primitive conifers, and ferns were spreading across the landscape. From Wordnik.com. [Paleozoic] Reference
All who believe in the doctrine of evolution, know that the class Mammalia must have appeared early in Paleozoic times. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
Paleodictyoptera: an ordinal name suggested by Scudder for Paleozoic insects which cannot be assigned to existing orders. From Wordnik.com. [Explanation of Terms Used in Entomology] Reference
I've, er, I've been on a research project for the last few years as a consultant on Paleozoic sedimentaries, porous ones. From Wordnik.com. [Noble House]
The forested low mountains of Ecoregion 36 are characteristically underlain by folded, sedimentary rocks of Paleozoic age. From Wordnik.com. [Ecoregions of Oklahoma (EPA)] Reference
The lithologic mosaic is distinct from the Paleozoic rocks of Ecoregion 36 and the strictly Quaternary deposits of Ecoregion 73. From Wordnik.com. [Ecoregions of Arkansas (EPA)] Reference
Here granite has intruded upward into extensive tablelands of Paleozoic limestone with areas of shale and sandstone interspersed. From Wordnik.com. [Jian Nan subtropical evergreen forests] Reference
The Appalachians were once a large mountain range in the Paleozoic and have been relatively geologically stable since that period. From Wordnik.com. [Appalachian-Blue Ridge forests] Reference
There are plateaus formed from chalk and Tertiary deposits, vast areas of melkosopochnik on a Paleozoic base, and alluvial plains. From Wordnik.com. [Kazakh semi-desert] Reference
At the other end of the Paleozoic, the largest mass extinction in history wiped out approximately 90% of all marine animal species. From Wordnik.com. [Paleozoic] Reference
There has never been such a growth of flowerless plants as in the Paleozoic, and flowering plants probably culminated in the Miocene. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
During the Paleozoic there were six major continental land masses; each of these consisted of different parts of the modern continents. From Wordnik.com. [Paleozoic] Reference
Overall, agriculture is more common, and forest cover is less extensive, than in the more rugged Paleozoic Plateau/Coulees Section (52b). From Wordnik.com. [Ecoregions of Illinois (EPA)] Reference
During the closing part of the Paleozoic time, there were growing all over the temperate zone great tree-ferns thirty feet or so in height. From Wordnik.com. [The Prehistoric World; or, Vanished races] Reference
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