I again went to my other property today to put my travel trailer away. My youngest son was there to help,,,, so, I asked him if he wouldnt mind putting in some boxes for me to take back home. Besides all kinds of other stuff, I ran into this big beauty today. This is Patinopectin carinus. Not sure if that is spelled right. Comes from Scotia Bluffs in Humboldt County Northern California. I used to sell a heck of a lot of these and sure am glad I saved one for me. Very hard to get the 'ears'/'wings' on these things. This one is much nicer than most. Its now in my fossil office.
Oh, the rock this is on is a bit over 4 inches thick. Quite heavy!
RB