Wednesday, March 9, 2011

Silurian Graptolite

Originally I thought this was a branching dendrite but after studying it, appears to be a graptolite fossil.  It might be a Desmograptus, Dictyonema, or unidentified graptolite.  I do not have much literature on these creatures to make a good guess.

This fossil has great contrast in relation to the limestone!

Fossil found in the Louisville Limestone (Middle Silurian Period) of Jefferson County, Kentucky.