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3 days ago · Fossil remains of air-breathing insects, myriapods and arachnids are known from the Carboniferous. Their diversity when they do appear, however, shows that these arthropods were both well-developed and numerous.
2 days ago · Some beds dated from the latest Permian ages are renowned for their fossils; strata (rock layers) in the Russian Platform contain a remarkable vertebrate faunal assemblage as well as fossil insects and plants.
2 days ago · Philadelphia, city and port, coextensive with Philadelphia county, southeastern Pennsylvania, and situated at the confluence of the Delaware and Schuylkill rivers. It is the largest city in the state. Learn more about Philadelphia, including its history, in this article.
A community of individuals from the Mid-Atlantic States with a general interest in Fossils and Paleontology. Members Online Upper Carboniferous Pennsylvania - Seed Fern Fossils
4 days ago · View this 1873 Historical Pennsylvania Counties map tool. The historical Pennsylvania counties will be displayed on the map, and you can also overlay present day counties, townships and more.
1 day ago · Pennsylvania, constituent state of the U.S., one of the original 13 American colonies. It is bounded to the north by Lake Erie and New York; to the east by New York and New Jersey; to the south by Delaware, Maryland, and West Virginia, and to the west by West Virginia and Ohio.
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4 days ago · See a county map of Pennsylvania on Google Maps with this free, interactive map tool. This Pennsylvania county map shows county borders and also has options to show county name labels, overlay city limits and townships and more.
