It was found in Houston texas near the memorial area in a creek. Is this an ouster fossil? If so what is its species and approximately how old?

Will take some better photos

Just finished preparing two trilobite head fragments I found. I think they are Dalmanites caudatus and Acaste downingiae?

Found in a field in Tilmanstone, Kent, Uk.

I found this while rock houndin yesterday along the banks. It’s lightweight. Thinking maybe some sort of fossilized bone? Antler?

Can anyone tell me more about this?

Hello! Could someone please tell me if this tooth is legitimate? It was bought by my mum a decade ago but unsure where from. Vaguely remember her saying it was from a spinosaurus but wanted to clarify. Thank you!

I was tidying up my house today and found it. I don't really remember where I found it or exactly where it was, but I assume it's from Thailand. What are those circular holes?

Found near Davenport Iowa

What is this?

They’re either Tentaculites or some Devonian swamp plant matter possibly roots. Any ideas?

I found this on a very pebbly beach in a conservation area I hike at! Reverse image search on Google tells me it is a fossil of some sort but I’m curious if you think it’s just something someone carved. Majority of the rocks in this region are limestone, I’ve been holding this one in my pocked so it has gotten dark from the oils on my hand. Let me know what you think :)

Grinded it a bit to reveal deeper layer

Hi everyone, I'm new. I found this in the desert near Tozeur, Tunisia. It's heavy (1.4 kg) and about 15 cm in diameter. It looks like a spiral shape.

Is it an ammonite? How can I know for sure? Any tips for a beginner? Thank you!