Rib in Concretion

[RJB]

Found this yesterday in a big box.  I cant remember when I found this or where I found it?  Im guessing the Scotia Sandstone Formation in Northern California.  Must have been a long time ago.  But no prep work or nothing.  Just the way it 'popped' open.  Perty nice when there is no prep involved.  Just a rib but purty dang nice if you ask me.  Enjoy.

 

Ron

[FossilDudeCO]

any idea what left this rib?

Who is bringing the BBQ sauce?

 

[RJB]

My guess is sea cow of some sort, but in no bone expert.

 

RB

[sjaak]

very nice piece!