Unique Field Find. Alien Skull? Peru Tridactyl Skull? Ancient Artifact? Fossil? For Sale

This Field Find is purportedly from Peru, which I inherited from a family member.This is a mysterious and intriguing artifact that could be an alien skull, river rock, ancient artifact, or fossil. I am not an expert in anything, to be clear. It seems to me to be fossilized bone, with all the right physiology of a skull. It could be a rock, but I personally doubt it. this item adds a touch of intrigue and speculation to any collection. contact me with any further questions or requests for photos/measurements.