Stone object unknown

[Revv]

Found in small riverbed in southeast Missouri. Anyone ever seen one of these?

 

[antmike915]

Looks natural to me, have you found any obvious artifacts in the same area?

 

[newnan man]

Natural rock. Neat shape.

 

[Revv]

Found a couple other items in the same area.

 

[uniface]

Second one's a flaked axe.

 

[Revv]

Is there a website or somewhere I can see similar objects?

 

[Buckleberry]

Yeah that red one looks to be a chopper or core, certainly worked stone.