Tuesday, April 13, 2010

Cecidomyiidae Gall Gnat Fossil


The insect gnat fossil called Cecidomyiidae Gall found in the Parachute Creek Member of the Green River Formation.  This insect existed in the Eocene Period and came from Rio Blanco County, Colorado.  Other fossil images not sure on their identification.  Fossils were magnified 40x with a microscope.


Monday, April 12, 2010

Indiana Scolecodonts

Scolecodont fossil from Madison, Indiana (Jefferson County) found in the Whitewater Formation.  This creature existed in the Ordovician Period.  Using the Dry Dredger scolecodont identification web page, this appears to be a Lobogenys (magnified 40x).  Note to reader, rest of images on page were taken with a microscope at 40x magnification.

This next fossil with its amber appearance is some sort of conodont. 


This next scolecodont might be an Arabellite.


This fossil is close up of the same fossil pictured at the beginning of the post so it is a Lobogenys.


This next fossil might be a Lobogenys as well.

This scolecodont with a fang still intact is probably an Arabellites.


This fossil could be a Colpogenys.

Not sure what this scolecodont is since it is missing quite a few teeth.


Another picture of the conodont shown earlier but photographed with a different type of light.


Unknown scolecodont fragment is the last picture.

Thanks to Kenny for the material to look through to find these.  So far I have found 13 scolecodont  pieces with four pretty much intact with one bag left to analyze.

Sunday, April 11, 2010

Indiana Ordovician Crinoid Stems

All images have been magnified with a microscope 40x.  These fossils were found in Madison, Indiana (Jefferson County) located in the southeastern part of the state.  The formation might be Whitewater and the time period is Ordovician.  The Dry Dredger web pages on crinoid identification were used for this posting.

The first picture depicts maybe a Xenocrinus.  The next image might be a Plicodendrocrinus.


The third picture appears to be a Xenocrinus.


The fourth picture is a probably a Xenocrinus.


The last picture is a fragment of maybe a Plicodendrocrinus.


Thanks to Kenny for providing the research material.