Pennsylvanian period


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

Pennsylvanian period

In North America, the second part of what is generally called the Carboniferous period: 320 to 286 million years ago.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Pennsylvanian period - from 310 million to 280 million years agoPennsylvanian period - from 310 million to 280 million years ago; warm climate; swampy land
Pennsylvanian, Upper Carboniferous, Upper Carboniferous period
Carboniferous, Carboniferous period - from 345 million to 280 million years ago
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in periodicals archive ?
Fedexia likely hunted smaller amphibians and 5-inch-long (13-centimeter-long) giant cockroaches that scuttled through the steamy coal swamps of the late Pennsylvanian period, 318 to 299 million years ago.
Scientists find meat-eating amphibian that appeared 70 mln yrs before first dinos
During the Pennsylvanian Period (320-286 Ma), the collision of North America and Africa resulted in the Alleghenian Orogeny and final assemblage of Pangaea.
Alluvial architecture of the Early Pennsylvanian Sharon Formation in Northeastern Ohio (1)
Abstract: Two cores from Buchanan and Andrew Counties in the Forest City Basin, northwestern Missouri, yielded approximately 1,200 feet of sedimentary rock deposited during the Pennsylvanian Period (approximately 300 million years ago), a period characterized by rapid fluctuations in sea level.
Sedimentology, Palynology, and Sea Level Fluctuations Recorded From Two Pennsylvanian Cores From Northwestern Missouri

Dictionary browser ?
Full browser ?