This is the “Fossil Friday” post #32.  Expect this to be a somewhat regular feature of the website.  We will post any fossil pictures you send in to esconi.info@gmail.com.  Please include a short description or story.  Check the #FossilFriday Twitter hash tag for contributions from around the world!

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The coal age in Alabama dates back to 310–315 million years ago, an interval of geologic time which lies within what geologists call the Early Pennsylvanian period.  Lepidodendron fossils are found in Mazon Creek, which is a little younger at 307 million years old. The fossils in this post are Lepidodendron bark from Alabama. 

Lepidodendron, also called scale trees, were fairly tall and looked something like the following.

Here are the fossils.