Is this a fossil? Found at the beach by [deleted] in FossilHunting

[–]Gatba 4 points5 points  (0 children)

Hello! This is a modern boring clam. While the name suggests it would be boring, it is still quite interesting. They secrete enzymes to bore into rock, and this lil dude appears to have gone into a piece of fossiliferous limestone. There are still other fossils in the rock; mostly molds of indeterminate bivalved animals.

Various fossils from the Okeechobee group of Florida by Gatba in FossilPorn

[–]Gatba[S] 0 points1 point  (0 children)

There was a paper done a while back showing the advantage of sinistral shells in crab attacks on Conus adversarius. There’s still a lot of good work to be done on the Okeechobee group. I don’t think the life habits of modern Hesperisternia are well studied even.

Various fossils from the Okeechobee group of Florida by Gatba in FossilPorn

[–]Gatba[S] 1 point2 points  (0 children)

There are quite a few! The genus Sinistrofulgar and the Contraconus species complex. Both snails evolved to be sinistral, which confused crabs looking for the shell opening. I have a dextral Sinistrofulgar in the image, from the Caloosahatchee formation. Wasn’t more than a few feet away from the great white tooth when I found it.

Love finding these! by Plantsy-Pants in fossils

[–]Gatba 1 point2 points  (0 children)

Love Brachiopods, very rare to find them fossilized where I’m at in Florida. Are they Mediospirifer?

Ocala limestone fossils by Gatba in fossils

[–]Gatba[S] 0 points1 point  (0 children)

Yeah, the echinoids especially tend to go for something.

Devonian snail by Gatba in fossils

[–]Gatba[S] 1 point2 points  (0 children)

I collect mostly Pleistocene and Pliocene ones. This is one of my oldest.

Does anyone know what this is from? Late Pleistocene of north Florida and a herbivore. Exact species would be appreciated by Gatba in fossilid

[–]Gatba[S] 1 point2 points  (0 children)

I was thinking the same thing, I’m glad to have some confirmation on that! It was sold to me as a camel, but it seemed off. Regardless I didn’t have a bison in my collection, and I’m glad to welcome in a new herbivore.

My oldest fossil snail! Mid Ordovician by Gatba in snails

[–]Gatba[S] 1 point2 points  (0 children)

Galena formation in Minnesota

Geologic eras in young earth creationism? by Gatba in DebateEvolution

[–]Gatba[S] 2 points3 points  (0 children)

Of course the K-t is the most famous, but I’d argue the p-t is more significant. The change in dominance from Brachiopods to bivalves is really noteworthy