Pennsylvanian Subsystem

Directory

References

Discover

Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland

The Largest Islands in the World

World Data Locator Map: Australia

Is Australia an Island?

Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden

7 Winter Solstice Celebrations From Around the World

Close-up of ostriches (Struthio camelus) necks and heads; location unknown.

6 of the World's Most Dangerous Birds

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England

7 of the World’s Most Dangerous Festivals

The Jeff Koons tulips sculputure outside the Guggenheim Museums in Bilbao, Spain, Basque Country.

What’s the Difference Between Modern and Contemporary Art?

Pennsylvanian Subsystem

geology and stratigraphy

Learn about this topic in these articles:

place in geochronology

In geochronology: Completion of the Phanerozoic time scale
…from Pennsylvania, were formalized as Pennsylvanian in 1891 by the paleontologist and stratigrapher Henry Shaler Williams.
Read More

subdivisions of the Carboniferous System

In Carboniferous Period: Pennsylvanian subsystem
The type region for the Pennsylvanian Subsystem is located in central West Virginia. There the interval is represented by the following groups or formations (ascending order): Pocahontas, New River, Kanawha, Charleston Sandstone, Conemaugh, Monongahela, and basal Dunkard. Other well-known Pennsylvanian units in North…
Read More