probably not

can you put more views and a scale? nothing says very, but it does look like maybe a fossil of some kind

I will a bit later. These came from a beach well known for early-mid miocene fossils.

Updated pics. From an exposed St Mary’s formation. 15-30 mya

if anything, they look like flat grinding molars

That’s what I’ve started leaning towards. Molars. The closest reference I could find was a dolphins ear bone, but they don’t seem to have the flatness. I believe there are land mammal fossils at this beach too. I’ll research more.

Horn coral

doubtful it’s horn coral. tooth is a possibility, but probably just a rock

Definitely not a rock. Appears to have had an inner core and serrations. (This is my 7 yo sons post)

Worn crab claw?

Doubt it’s a crab claw. It’s solid not shell. It’s from a beach with plentiful early to mid Miocene fossils which makes me think crocodile or small toothed whale.

funny shaped rock

I added a couple more clear pictures. Clearly not a rock. Taken from a beach with an exposed St Mary’s formation (15-30 mya).

@smoran, @matthew-gramling, or @bill-heim could help.

the updated pictures show that it’s a crab claw. and it’s clearly not solid, but hollow. it’s just been filled in with sediment

Thanks l-m! I was able to find a reference with pics from the same formation. Miocene crab claw. I for get which beach I collected this from and the formations tilt into the earth along the Chesapeake Bay so the beach matters as to which formation. I believe I got it at Calvert Cliffs Park which would be the St Mary’s formation and late Miocene.

crab claw

is that polished?

definitely looks more bonelike now. it has the porous nature of a bone.

First Impression is rib bone but probably not. definetly bone.

limb bone is more probable

don’t see any fossils there. nice minerals and shells though

Make sure to always protect your fossils from other fossils/rocks! Always wrap them up in a paper towel or a handkerchief so they don’t get scratched and never put them on the bottom! I have seen so many incredible specimens tossed in backpacks to never look the same again. It’s very tragic