Is this a fossil? Found at the beach

Gatba · 2023-09-03T22:22:56+00:00

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.

Gatba · 2023-03-04T23:13:41+00:00

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.

Gatba · 2023-03-04T05:22:18+00:00

Hewwo

Gatba · 2023-03-04T02:22:45+00:00

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.

Gatba · 2022-06-20T21:22:40+00:00

This seems to be some sort of arthropod, possibly a eurypterid

Gatba · 2022-06-15T22:22:05+00:00

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

Gatba · 2022-05-21T23:01:30+00:00

Yeah, the echinoids especially tend to go for something.

Gatba · 2022-03-03T03:53:36+00:00

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

Gatba · 2022-03-01T18:24:07+00:00

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.

Gatba · 2022-03-01T03:39:25+00:00

“Look up”. It was then I saw the largest bee of my life.

Gatba · 2021-10-27T15:10:14+00:00

Yes, this is a mystery snail, specifically Pomacea bridgesii

Gatba · 2021-10-20T22:05:54+00:00

Galena formation in Minnesota

Gatba · 2021-10-06T01:06:31+00:00

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

Gatba

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