Sunday, January 11, 2009

Ordovician Colonial Coral

Here is a colonial coral found in eastern Jefferson County, Kentucky. The chambers are shown as the coral grew outward stacking chamber upon chamber. The top surface in shadow looks like a cratered asteroid where the little coral creatures once resided.


Saturday, January 10, 2009

Devonian Corals

Here is a Devonian rock that has coral and horn coral (?). The horn coral(?) is on the top that appears to be eroding. A branching bryozoan is on the bottom. The rock is somewhat fragile and must be some sort of limestone since that is the Devonian layer.


Friday, January 9, 2009

Devonian Coral

Here is a Devonian Coral found in central Jefferson County, Kentucky. It probably came from Jeffersonville Limestone.