home   Printer friendly version Add to site
Advanced search
Time & Space Fossil Gallery Famous Flora & Fauna
Careers Resources K-12 Collections PaleoPeople

The Cambrian in Pennsylvania, US

Cambrian in Pennsylvania map

undifferentiated rock units help

Choose a time period:

Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian

Cambrian Fossils
Fossil photos from Cambrian in Pennsylvania

Previous (4 slides) Next
Search the fossil gallery

Paleontology and geology

During the Cambrian, Pennsylvania lay much closer to the equator than it does today. A shallow sea rose to cover the state, and sediments eroding off the land formed a sandy sea floor inhabited by trilobites, brachiopods, and other marine organisms. Limy sediments accumulated father offshore. Cambrian rocks containing stromatolites typical of a shallow-water environment can be found in Valley Forge National Historical Park west of Philadelphia. Simple, tube-shaped, vertical trace fossils called Skolithos can be found in York County in central Pennsylvania. Although not shown on this map, there are extensive exposures of Cambrian rocks in southeastern and south-central Pennsylvania.

Links to more on the Cambrian in Pennsylvania

Research and Collections

Research and Collections

Ongoing Research Projects (showing 1 of 1 listings)

Carnegie Museum: Invertebrate Paleontology Section: The Carnegie Museum of Natural History Section of Invertebrate Paleontology has more than 100 years of research, field work, educational outreach (PALS), and exhibits on Phanerozoic life. Our collections number more than three-quarters of a million specimens with some 11,000 type and figured specimens published in more than 300 professional publications. Our type and collection strengths are concentrated in the Lower and Upper Paleozoic rocks of the Appalachians, mid-continent, and western Interior Seaway. 

top Top of List


New York State Map
New Jersey State Map
Delaware State Map
Maryland State Map
West Virginia State Map
Ohio State Map
Ontario Province Map