Sunday, March 10, 2013

Palmoxylon Fossil Magnified

These magnifications are from a thin slab of silicified palm fossil. I wet sanded the slab with 320 and 800 grit paper. Karate Kid's Mr. Miyagi would be proud of my sanding work!

Fossil was photographed wet to enhance the contrast. Have not tried polishing it yet.

This fossil appears to be of the genus Palmoxylon and was found in Texas. It is from the Eocene.
Thanks to Herb for the fossil.





Monday, March 4, 2013

Icriodus expansus? Conodont Fossil

Here is a freshly discovered conodont fossil found in the Beechwood Limestone of Clark County, Indiana. It is Middle Devonian Period in age. It appears to be an Icriodus expansus? conodont fossil.

Thanks to Kenny for the picture.

Sunday, March 3, 2013

Favosites Growing on Crinoid Stem

A Favosites coral growing around the stem of a crinoid. This type of growth appears to have been typical for this coral. Fossil was found in the Waldron Shale of Clark County, Indiana. It grew in the Silurian Period about 420 million years ago.

Below is an illustration from Plate 17 (Figure 9) Indiana Department of Geology and Natural History Eleventh Annual Report John Collett State Geologist 1881. It shows a Favosites coral growing on a Eucalyptocrinus crassus stem.