Dear Jennie, Rather than being bones, these specimens look like seeds and sound like seeds from your description. I suggest you show them to a local archaeobotanist who is familiar with the flora of NE Colorado. Tonya Largy, M.A. Zooarchaeology Laboratory Peabody Museum, Harvard University Cambridge, MA 02138 USA Jennie Borresen Lee wrote: >Greetings all, > >I have attached a photo of a mystery specimen. Can somebody please help >me identify these little buggers. I have run across them before and >simply have no idea what they are. They may be quite obvious to some or >many of you (I hope). These are from a faunal assemblage (mainly >comprised of bison remains) from NE Colorado, USA. They are about 1.5 mm >thick and 3.7 mm in diameter. There is a little spur on the outer edge >and a rough texture on the upper and lower surfaces. They appear >mineralized. I greatly appreciate any and all help. > >Thanks, >Jennie > > > > ------------------------------------------------------------------------ >