Dinosaur Egg? Or Rock

[Sonarguy]

Can anyone help me identify if this is a dinosaur egg?

 

[Ronstar]

Best advise I think anyone could give you at this point is get it to an Anthropologist!!! Thats a cool find. I have a rock I found up N Idaho awhile back that for all the world looks like a big honking tooth. I need to take my own advise.......

 

[u2robert]

My educated guess, alien egg

 

[Ronstar]

Susquatch?????

 

[Elmy]

fossilized turd ? Has to be ! Maybe I saw that on ALIEN ...the movie.

 

[GeorgeinSC]

I sent pictures to a friend who is a geologist. He says Rock.

 

[bootyhoundpa]

kind of resembles a geod like they find in South America that have crystal inside... not magnetic right? very interesting find..

 

[north1]

Concretion

 

[NJearthman]

Very similar to moqui balls, concretion is correct see this link
https://www.rocksandminerals.com/specimens/moqui.htm

 

[Detecta]

This has the perfect shape of an egg, thick at one end and narrows down the other end. I'd say a good example of a fossilised egg.

 

[dosher100]

I found a large object in a stream in Missouri. It is about 2lb and looks to have a shell in it.

 

[fwcrawford]

That is an interesting find.
Sure looks egg shaped to me.
I would do as others suggested and take it to someone that is knowledgeable about fossils.
Just curious... what state was this found at?