Hi, Conch-Lers!
I have a freak Vanhyning's Dinocardium - it has multiple edges and a big gap on the ventral surface. I know some of you collect freaks and oddities, and I don't.
If you are interested in trading for it, please contact me off list.
Cordially,
Linda Bush - <[log in to unmask]>
P.S. This shell was collected on Sanibel in the early 1970's.