2. Of, relating to, or being the period of geologic time from about 318 to 299 million years ago, the sixth period of the Paleozoic Era. The Pennsylvanian Period is characterized by the appearance of the first reptiles and widespread swamp forests. See Table at geologic time.
n.
1. A native or resident of Pennsylvania.
2. The Pennsylvanian Period. Also called Upper Carboniferous.
2. (Geological Science) (in North America) of, denoting, or formed in the upper of two divisions of the Carboniferous period, which lasted 30 million years, during which coal measures were formed. See also Mississippian2
n
3. (Placename) an inhabitant or native of the state of Pennsylvania
4. (Geological Science) the Pennsylvanian the Pennsylvanian period or rock system, equivalent to the Upper Carboniferous of Europe
2. of or pertaining to a period of the Paleozoic Era, occurring from about 310 to 280 million years ago and characterized by warm climates, swampy land areas, and the development of insects and reptiles: sometimes considered as an epoch of the Carboniferous Period.
The sixth period of the Paleozoic Era, from about 320 to 286 million years ago, whose rock deposits are rich in coal. Reptiles first appeared in the Pennsylvanian Period. See Chart at geologic time.
The death of Marmaduke’s father, and the consequent division of his small estate, rendered such an offer extremely acceptable to the young Pennsylvanian; he felt his own powers, and saw, not only the excellences, but the foibles in the character of his friend.
The American is justly proud of the origin of his nation, which is perhaps unequaled in the history of the world; but the Pennsylvanian and Jerseyman have more reason to value themselves in their ancestors than the natives of any other state, since no wrong was done the original owners of the soil.
Later, Willard and Cleaves (1930) erected a new ichnospecies, Megapezia longipes, for a vertebrate trace that was found in the Pennsylvanian Rhode Island Formation of Plainville, Massachusetts, USA.
We collected conodonts from black and gray shale lenses containing limestone nodules lying immediately above the Bucktown Coal Member of the Dugger Formation (Pennsylvanian, Desmoinesian) in a Solar Sources Pride Creek pit 2 miles south of Petersburg in Pike County, Indiana.
M2 EQUITYBITES-September 9, 2013-Earthstone Energy Inc reports start of completion operations of deep Pennsylvanian test in Cheyenne County, Nebraska(C)2013 M2 COMMUNICATIONS http://www.m2.com
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.