Unformatted text preview: phibians.
Age of Fishes. First shark. Many
diverse land plants. Earliest
amphibians, ferns and mosses.
jawed fish,vascular land plants.
Martinsburg Formation First corals, moss.
• High Point Member Primative fish,
• Ramseyburg Member fungi and seaweed.
• Bushkill Member
Age of Trilobites. Cambrian explosion of life occurs. First vertebrates. Earliest fish. First shells
Bloomsburg Red Beds
Shawangunk Formation Cold climate with three episodes
of glaciation in late Proterozoic.
First soft-bodied invertebrates
and colonial algae. Oxygen
build-up in atmosphere during
Life appears. First bacteria and
blue-green algae begin freeing
oxygen to Earth’s atmosphere.
Sun and planets form. Shading indicates that geologic deposits from these time periods are present at High Point State Park.
Gradstein, F.M. and others, 2004, A Geologic Time Scale: Cambridge University Press, 589 p.
Pennsylvanian and Mississippian comprise the Carboniferous System.
Also called Precambian, a non-specific time term. Rocks of these ages are not
found at (or near) the surface
at High Point State Park.
They may be at depth. 0 to 10,000
1.8 million CENOZOIC Years
Ago1 Eon Era...
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