A trilobite

Way out of focus trilobite

Trilobite

Trilobite

Pictures are out of focus

Yeah it’s a really cool Dino Jawbone fossilized

No wait it’s a full skull of a Dino

omg

Turtle I think

probably iron

Looks like a mineral formation inside of the rock

This looks like a fossilized bone with mineral deposits filling the marrow cavity. Please post more images.

completely out of focus

it looks like shark @bill-heim could help.

I need a location. Also the root is often the most diagnostic part of the tooth and it is missing most of it.

Sand tiger shark I think

san antonio texas

bone. not sure if modern or fossil. but it appears to be fossil.

Looks like a few hundred to a few thousand years old but not millions. Is it made of rock or or still light?

Touch it with a match, if it smells like burning hair, it is not a fossil. It does not look like it is fossilized.

Looks like the elbow end of a humerus

Large ungulate looks like

dont smell like hair

for me it looks like an interestingly eroded rock.

Cool top jaw

This is a weird and very interesting item. It looks like a lamnid shark had its jaws preserved in a very odd way. A scale with the item would be very useful to get an idea of the size. Was there any more of this where it was found or similar pieces?

I see lithification, which is a sign of a sedimentary rock, where fossils are found. I’m not certain if this is a shark jaw, but it is something very interesting