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Hi All, I found this tooth sifting in one of the Cretaceous brooks in Monmouth Co., NJ. during a trip around November last year I wasn't sure what it was at first (initially thought talon possibly from something more recent), however after showing photos to a few local folk more familiar/knowledgeable with the fossils in this area (Thanks @frankh8147!), the consensus was, it's a very compressed Mosasaur tooth. Makes sense as Mosasaur teeth can be found here on occasion, and this tooth has several common features. However, I've had a couple individuals suggest theropod tooth when I initially shared it in a couple groups back in November. This was based on the compression of the root. I'm still leaning towards Mosasaur, but recently a different person brought up the theropod theory, so I thought why not throw it up here for opinion. Multiple photos, some redundant (have done a couple "photo shoots" with this one lol). If photos of any specific area would be beneficial, please let me know. Thanks in advance for your feedback/opinions! Truly appreciate the help.

Hello, I was wondering if anyone can assist in helping to ID some of my recent finds located in Monmouth county. Thanks in advance for any help.

Several fossils found by my friends and I in Hop Brook we need help IDing, first, perhaps the tip of a crab claw? (graduations on the side are one mm each) the second, bog iron, or the relief of a worm burrow? the third.... uhhh.... I'm not sure, and I being the "expert" of the group, was given it for safe keeping

My friend found this in Ramanessin Brook. I have found a Giant Beaver tooth before in Big Brook, but lost it. Can anyone let me know if this is another Giant Beaver Tooth.