Fossil? Clear Chalcedony Inclusion

[mpwil483]

I found this specimen 30 Miles South east of Prescott, AZ in an area where early Neolithic Mammal fossils have been found. When hounding I picked up agate and chalcedony that was scattered all over, not thinking they were anything than normal. These two pieces I picked up seemingly fit together...which I just found out while looking for the specimen. Does anyone have any ideas what this is?

https://photos.app.goo.gl/2KEncTHwcyuBtcA87