@rebekkah-braziel – do you have another image of the other side of this specimen? That helps our curation team verify your identification. I can tag in our shark experts if you are interested. Talk to you soon, Jen

Not a thresher shark. This is an upper Carcharhinus species. However due to the wear, it is impossible to tell which one.

Hi, @rebekkah-braziel – similarly with this specimen, an additional image of the opposite side of the specimen is helpful for confirming your identification! Talk to you soon, Jen

Not a lemon shark. This appears to be Carcharhinus plumbeus, sandbar shark. Please use a more contrasting background (lighter), in addition to an image of the other side.

Hi, @rebekkah-braziel – excellent foram specimen. I’ll tag in our local expert – @samantha-ocon – to help you narrow down your taxonomic information.
Talk to you soon, Jen