This image shows what appears to be a  Polygnathus longiposticus  conodont fossil. This creature existed in the Mississippian Period. Fos...

This image shows what appears to be a  Spathognathodus sp.  conodont fossil. This creature existed in the Mississippian Period. Fossil wa...

This image shows what appears to be a  Spathognathodus crassidentatus  conodont fossil. This creature existed in the Mississippian Period...

This image shows what appears to be a  Spathognathodus macer  conodont fossil. This creature existed in the Mississippian Period. Fossil ...

This image shows what appears to be an  Ozarkodina  conodont fossil. This creature existed in the Mississippian Period. Fossil was found ...

This image shows what appears to be a  Spathognathodus macer  conodont fossil. This creature existed in the Mississippian Period. Fossil w...

This image shows what appears to be an Ozarkodina conodont fossil. This creature existed in the Mississippian Period. Fossil was found i...

This image shows what appears to be a Lonchodina conodont fossil. This creature existed in the Mississippian Period. Fossil was found in...

This image shows what appears to be a  Polygnathus lobatus  conodont fossil. This creature existed in the Mississippian Period. Fossil wa...

Here is a picture of a recently found conodont fossil fragment. It appears to be a Polygnathus sp. The fossil was found in the Jacobs Cha...

Here is a picture of a recently found conodont fossil fragment. It appears to be a  Bryantodus mundus.  The fossil was found in the Jacob...

Here is a picture of a recently found conodont fossil. It appears to be a  Siphonodella duplicata. The fossil was found in the Jacobs Cha...