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 Spathacalymene nasuta. It was found in the Osgood Formation of Ripley County Indiana, USA and dates to the Silurian Period. Accession number is Fl-4360. Donated by Jason Cooper.
The museum's trilobite exhibit was made possible by Dr. Martin Shugar, M.D. and Andy Secher who also edit the AMNH trilobite web site.
I have found part of one these back in 2011. The Osgood Formation is interesting as some of it's fossils are a honey color. https://louisvillefossils.blogspot.com/2011/10/spathacalymene-nasuta-trilobite.html
