Saturday, June 13, 2009

Aulaphyllum Horn Coral

Here are some images of fossils that are probably Aulaphyllum horn corals from the Devonian period. It was found in north east Jefferson County, Kentucky.

Friday, June 12, 2009

Cystiphyllum Horn Coral

Here is a image of a Cystiphyllum horn coral found in north east Jefferson County, Kentucky. It is from the Middle Devonian period in the Jeffersonville or Beechwood Limestones. You can see evidence of the cysts or sacks on this coral.  This coral was later renamed Cystiphylloides I believe for the Devonian Period corals and Cystiphyllum was used for Silurian Period corals.

Identification from Erwin Stumm's Silurian and Devonian Corals of the Falls of the Ohio pp. 54-55 (description) and plate 55 pp. 146-147.


Thursday, June 11, 2009

Pennsylvanian Lycopod Fossil Root

Here are some fossils provided by Shamalama that are from the famous plant fossil area: Schuylkill County, Pennsylvania. It was found in the Llewellyn Formation and is from 300 million years ago (Pennsylvanian or Late Carboniferous period).

These fossils are the Stigmaria root and the little scar marks are where the rootlets once were.

The fossil fragments are about 15 cm long.