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I need help with a couple of ID's.... The first one is a shark tooth, from the east coast of the USA - most likely from the Meg ledge. I'm not sure if it's a Carcharodon or Isurus tooth. The root shape looks more Isurus-ish but I'm not 100% which is why I'm asking here. The other one is an awesome Mosasaur tooth in matrix (Moroccan in origin, if that wasn't obvious haha)... does anyone know the genus of this tooth? It doesn't look like the typical Prognathodon teeth often seen in natural matrix. The other fossils within this matrix have me very curious too.... can anyone ID the shark tooth and other random fossils? There is a good size chunk of bone in there too. The hourglass(ish) shaped fossil might be a vertebra ...?
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While preparing a large xenacanth tail from a new site south of Sydney I noticed this juvenile of the same species within the nodule. Xenacanths are very common in this horizon of the Ashfield Shale but are often poorly preserved, so this example offered a unique opportunity to photograph certain features such as the denticles. Unfortunately, both specimens are incomplete since half the nodule was missing, but that is just the nature of this site! Here is the whole nodule with the partial xenacanth tail, three poorly preserved Cleithrolepis and juvenile xenacanth towards the right: The juvenile xenacanth. Towards the top middle section is the base of the dorsal spine which never seems to preserve on adult specimens, and towards the left are impressions of denticles and the vertebrae. Towards the right, the lower jaws with teeth are preserved and there even seems to be an impression of the eye. Ammonium chloride images of a latex peel showing the whole specimen and closeups of the jaw and teeth: Closeups of denticles:
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I need Advice on Getting this Fin spine out of the rock
Samurai posted a topic in General Fossil Discussion
I am not sure if this is the right place to post this on the forum, but I am going to be completely honest and admit that I need advice on trying to get this fossil out in one piece. I have a small portable rock saw which I have tried using to no avail. I have also tried chiseling around it but I am an amateur and have only used this rock saw on easier-to-get targets. I do not want to break this and glue it back together unless it is absolutely necessary. My original plan was to cut in a sort of # pattern and chisel the sides till I got deep enough to chisel out a rectangular slab but then got cold feet. This fin spine is lodged in a half-sunken 5 to 7-inch thick chunk of limestone that is too large to carry or move. I want to try and extract this fossil before the rock pile gets taken to the dump, or this fossil erodes completely into nothing. I know it's not in the best shape but it means a lot to me as it was my first "big find" when I started field collecting a few years ago and any advice is appreciated. I am not sure if I should just keep chiseling the sawed portions till it begins to break loose or what my next steps should be. It is also so close to being covered in sediment and so close to another chunk of limestone I am unable to fit the portable saw blade completely in place to saw more for the bottom portion, beyond where it is already cut. (it is at an incline and the rocks form a sort of V shape). Image taken before sawing began (I am leaning on the other rock): Where I am at: Edit: I think I need to keep chiseling it, but I wanted to consult the experts before I continue further. I think i may have panicked when I heard that the landowner may be calling waste management in a few months. Once again sorry if this is the wrong place to post this, and move this post if need be.- 24 replies
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- muncie creek
- missouri
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Curious if anyone has any ideas as to what these might have came from. Found this piece in SE Colorado that has tons of shark teeth but these are way different than anything we have found so far.
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Dear fellow TFF members, The following two teeth are fairly strange to me. Im afraid Florida is as specific as I can get with the locality of the two. Could the first tooth be a snaggle??? Thank you for your time and expertise.
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This ia an object I found on a gravel path on the southern shore of Lake Mendota in Madison, Wisc. I always thought it was a fossilized shark tooth, but after finding this discussion, I'm not as convinced as I once was. Any comments would be appreciated. Thanks.
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I found this fossil among other mollusk and other small sea creatures this one was interesting. Can anyone tell me what Eon it’s from? 73204866674__3686FFD8-EB9D-4E1A-BAA9-89B16BC033B3.MOV
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I got these tiny teeth in some bulk Moroccan stuff, I assumed carchihinid but I saw another dealer has similar larger stuff as Physogaleus secundus. My largest tooth is about 3-5mm Any advice or rescources from the wise heads here is appreciated in advance
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I have (finally) got around to going through my Moroccan phosphate shark teeth. I've attempted to identify them but I am still not particularly confident at identifying fossils so I thought I'd run it by the experts first. All the teeth are (supposed to be) from the Eocene, save 4 which is (supposed to be) from the Cretaceous. I attempted to label the images with my proposed identifications but there wasn't enough space for all of them so I'll list them all here: 1. Ginglymostomatid (Nebrius?) 2-3. Hemipristis? 4. Unsure 5. Pristid/Sawfish (Pristis?) 6. Otodontid (Cretalamna?) 7-10. Odontaspidid The lighting is also quite poor on these images as the enamel on the teeth is very reflective and they show up as amorphous white blobs if it's too bright as my phone camera is by no means the best. Thanks in advance for any proposed ID's Othniel
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From the album: Texas Permian Fossil Finds
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Hi, everyone. this is part 1 of my growing fossil collection. I will show more of my collection later. Images: 1. Carcharodon Hastalis ( found by me) 2. Scylirhinoid vertebrae (found by me) 3. Unknown Theropod tooth (bought) 4. 13.5 cm (5.34 inch) megalodon tooth (bought) 5. Tiger shark tooth (bought) 6. Bull shark tooth (bought)
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From the album: Texas Permian Fossil Finds
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From the album: Texas Permian Fossil Finds
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- orthocanthus
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From the album: Texas Permian Fossil Finds
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From the album: Texas Permian Fossil Finds
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From the album: Texas Permian Fossil Finds
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From the album: Texas Permian Fossil Finds
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- shark
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From the album: Texas Permian Fossil Finds
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- shark
- orthocanthus
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From the album: Texas Permian Fossil Finds
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- shark
- orthocanthus
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From the album: Texas Permian Fossil Finds
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- shark
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From the album: Texas Permian Fossil Finds
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I just got a megalodon tooth a few days ago. It has coral on the top of it. Is it fossilised or modern? The tooth itself is estimated to be around 5 million years, and it was found in Wilmington, North Carolina.
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From the album: Fin Lover's South Carolina Finds
It's broken, but I guess I've joined the 4 inch meg club! -
I've been looking and pulverized rock under a microscope and have found some interesting items. The first image is possibly a fish jaw, followed by a possible shark spine fragment. Any ideas on those 100% or the rest? Thanks.
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- carbonifirous
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