Hello, I am sorry for my delayed response to your inquiry, Mearto offices were closed during the holidays. I was made aware of your submission today.

Your specimen does appear to be a semi-fossilized mammal bone. If it was found in your region of Geneva, OH; it appears to have been found exposed and without a hardened stone matrix surrounding the structure. The coloration and slight crystallization to the interior of the bone also means that it is a more recent remain. By recent, I do mean within the past 5,000 years and into the current centuries. It is distinctly mammal, but the section and size could be related to a wide range of animals that have lived in the the Lake Erie Basin, including humans and animals of farming and ranching traditions. It is a great example and is an interesting piece that many people in archaeology and paleontology would be interested in viewing. Specimen is 3" L x 1.5" diameter; unknown weight.

I do not believe that this is not a human remain. However, from images alone, it is not possible to determine with above average accuracy. If you believe it is so; there are many legal obligations involved and ultimately the item is not yours to sell or own. However, following the lengthy process; you would, perhaps, be able to donate the item in your name to a cultural institution. It should immediately be reported to regional law enforcement and investigations. They will help determine if the human remains can be categorized as historic and/or are part of archaeology protection laws of your nation/ state and the nation/ state of origin.

Based on your given location, I suggest you reach out to:
Cleveland Museum of Natural History: https://www.cmnh.org/
Case Western Reserve: https://eeps.case.edu/