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I’ve found many of these bivalves in some of the Sunniland Limestone Quarries (SWFL). I can’t tell if it’s an oyster, but many have said it is.
It’s from the Tamiami Formation. Anyone have any idea what genus it might belong to? Everytime I find them they are always encrusted with all sorts of bryozoans, sponge-borings, worm tubes, etc. Definitely not like the Hyotissid
The shell is very thin and growth bands are very well preserved on every specimen. They are fairly large; the one in the photo is probably 8 inches long at the most.
Interesting find, @bostickkw! I wonder if Roger Portell could weigh in on this? @vperez, would you mind running this by Roger, like you did for Wendell’s question?
I did. Still waiting on a response. He was out of town last week and is just catching up on emails. I’ll keep you posted.
Here’s another specimen, but not as nice as the first one I posted.
It might be worth noting that the matrix is a variably cemented lime mud and contains many other smaller bivalve shells. Difficult to say what kind of ecotone it would have been in post-mortem.
Taphonomy is just another reason to look at these guys.
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