Found these oddly flat rocks, not sure if they're fossils? Thank you. : r/fossilid

Fossil ID — Museum of the Earth

fossil identification by shape

fossil identification by shape

Can YOU guess what the fossil in my hand is? Correct answer will

SE Texas - Mineralized fragment - Fossil ID - The Fossil Forum

Mississippian unknown - Fossil ID - The Fossil Forum

fossil found - Fossil ID - The Fossil Forum

Funky looking cluster of fossils or just a weird rock? South Wales

Dinosaur fossil or unusual rock? We believe this is a dinosaur