Dicranurus hamatus Trilobite Fossil

On a recent trip to Alpena, Michigan USA with several amateur paleontologists from Louisville and one from Chicago, we visited a local paleontologist Paleo Joe (aka  Joseph Kchodl). This picture is of one of his trilobite fossils from Oklahoma. This fossil is known as Dicranurus hamatus (Conrad, 1841). It was found in the Haragan Formation and existed in the Devonian Period.

 Learn more about Oklahoma trilobites in the Geological Survey Bulletin 123 Trilobites of the Haragan, Bois D'Arc and Frisco Formations (Early Devonian) Arbuckle Mountains Region, Oklahoma by K. S. W. Campbell (1977). Paper can be found at this LINK.

Proaster Brittle Star Fossil

 

My September 2021 trip to Alpena, Michigan USA included a visit to local paleontologist Paleo Joe (aka  Joseph Kchodl). 

This picture is of one of his brittle star fossils from Middleport, New York USA. This fossil is known as Protaster sp. (Forbes, 1849). It was found in the Rochester Shale and existed in the Silurian Period.

Genus was named by Edward Forbes (1815-1854) in Figures and descriptions illustrative of British Organic Remains. Memoirs of the Geological Survey of the United Kingdom (1849).

Chilotrypa ostiolata Bryozoan Fossil

 

My September 2021 trip to Alpena, Michigan USA with several amateur paleontologists from Louisville and Chicago, we visited a local paleontologist Paleo Joe (aka  Joseph Kchodl). 

This picture is of one of his bryozoan fossils from Middleport, New York USA. This fossil is known as Chilotrypa ostiolata (Hall, 1852). It was found in the Rochester Shale and existed in the Silurian Period.