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.

Dicranurus hamatus elegans Trilobite Fossil

This trilobite fossil was on display at the American Museum of Natural History (AMNH) in New York city in July 2018. The trilobite fossil is named Dicranurus hamatus elegans (Campbell, 1977). It was found in the Haragan Formation, Coal County of Oklahoma, USA and dates to the Devonian Period. Accession number is Fl-83818. Donated by Andy Secher.

Learn more about the museum at https://www.amnh.org/

Their trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who are also editors for the AMNH trilobite web site.