Rugose Coral?

[DocLiv]

I found this interesting piece of rock while hiking in the Snake River Canyon NE of Alpine, Wyoming. My first thought was it might be a coral so I looked at images of fossilized corals and it most closely resembled Rugose Coral from the Devonian. Please check out the photos and let me know what you think. Thanks!

 

 

 

[PMA]

Yes it's Rugosa. The rock also looks like Stromatoporoids , which is a host for Rugosa.

[DocLiv]

Thanks for the comments PMA!

[Rockwood]

I'm in on the rugose part, but I don't see stromatoporoid.

[PMA]

 

Actinostromatida, it looks exactly like a rock I own. Reef limestone out of actinostromatida with rugosa. Also devonian, but from Germany.

[Rockwood]

I have several examples of stramatoporoid entombed rugose corals myself.

The post doesn't look like them to me either. 

[Rockwood]

The shadow directly surrounding the corals looks like it could be if that is what you mean.

[minnbuckeye]

 

 

Stromatoporoids and stromatolites always confuse me!!!!!! But I do know stroma means layers and anytime I find one of these, the layering is obvious. @PMA, where do you see the layering that makes stromatoporoid likely?

[Rockwood]

The layering isn't always preserved, but in some cases it can reasonably be assumed from context.

It works when you don't need to be positive anyway. 

[PMA]

Mh, on the phone it looked like a pore-like structure but not now. I guess it's just packed with rugosas.