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Hello all! Just finished going through a small batch of matrix from the York River and found a some fossils that I need help IDing. 1. These ones strike me as some sort of polychaete jaws, but not sure. 2. Some denticles or teeth but they seem a lot different than the skate (Rostroraja sp.) that I've been finding (see 2.1). These do not have the cusp or base morphology that I've been observing and are quite smaller. 2.1 Rostroraja teeth Thanks so much! Miguel M

Hi All I though I would do a little post. Sorry if the information is a little lacking but I have been ill and had an emergency operation . I am fine now but still on the meds and I thus get a little confused. I purchased to occupy myself some Micro Matrix from the Lower Permian Richard's Spur locality of Oklahoma. Fossils range from fragments to complete and include toe bones, jaws, skull plates, teeth, intercentra, limb bone ends etc. The majority of specimens are Captorhinus magnus and C. aguti but undoubtedly there are other species. I am sorry but I am unable to identify them but I really enjoyed doing the photos so I thought I would share my finds with you guys. Cheers Bobby

I want these to stay pristine as possible. I’ve seen modern teeth age badly. I don’t want this. Please help! special teeth

Out Hunting the Peace River. Very unusual low water levels for summertime. Went back to a location that I have not visited for years, with a good friend. He found some good things.. a snake / reptile vert with processes each as wide as the centrum. 2 teeth that could be pre_equus horses, a bunch of little colorful shark teeth. I have 4 finds that I both find interesting and can not identify. 1) A dolphin jaw bone (pretty special even without teeth)... Questions: Which Florida fossil Dolphin? Very small teeth on edge of jaw. What is the brownish indention line paralleling the alveoli line? Tooth impressions from the opposite jaw? @Boesse 2) Another jaw, much smaller, possibly a family pet ? 3) An Earbone....Not Llama, not Horse, (although similar in size), Not Mammoth/Mastodon. I have lots of Equus ear bones. These are very hard to identify because few people collect them... Odd fossilization, if fossilized. Given the huge number of South Florida Fossil hunters, it is odd that this is the first time I have seen an ear bone anything like this. 1st photo is 30 x 30 millimeters. 4) and last... A bone with a facet and minimal breakage. Seems like it should be identifiable... It is 60 x 45 mm, rather thin.... feels marine mammal or alligator... As normal, I will be searching the internet for clues over the next couple of days

Hello fellow fossil fans, recently I have been fossil hunting on zandmotor again. During this fossilize trip I found a piece of bone that bore a slight resemblance to a piece i never have been able to ID I found a few years ago. I put them next to eachother in this post. Any ideas? Thanks for looking,

The museum gift shop I work in has this labeled as "Crocodile Jaw Fossil". Is it? It's from the previous manager who was notorious for mislabeled fossils. Appears to be remounted on Moroccan material. Please help!

Here is a way to spend a gloomy winterish afternoon. Searching, (easily) finding and reporting fake fossil fabrications. This time the 'Shop for handmade, vintage, custom, and unique ... ' got some signals. These sellers are a real disgrace. Hope I saved some beginning fossil collectors from a bad start...

I acquired this fascinating fossil at the recent show. My first reptile bones. The dealer said it is from Morocco and of the same age (and matrix) as the mosasaur jaw sets he had next to it. But he wasn’t sure if it was a baby mosasaur or a different species of smaller aquatic reptile. I’m pretty sure TFF can answer these questions I have. 1) Is this a baby mosasaur or a different species (if so what species)? 2) Can you identify the visible bones? 3) Is it worth it or feasible to attempt to reveal more of this fossil? 4) If so, what special procedures/tools would be necessary to prep this fossil to reveal more skull?

Hello guys, I should probably start this post by mentioning that I'm not a vertebrate guy. So if anything I say is wrong or laughable, this isn't my best subject. Today I bought two jaw pieces with no label for a ridiculously low price. I think they're Enchodus from Morocco, but I wanted to verify. Also, there are some various verts, shark teeth, etc. in the matrix, I think the visible shark tooth in piece #1 is Squalicorax, and I'm not sure about the one in #2. And the large vert on #1 might not be identifiable, but I thought I'd ask. Are there any major red lights? Any serious resto work? Thanks everybody! Jaw #1:

Hello, all! We recently acquired a shark jaw and are very curious about what kind it might be. I am a teacher and plan to display it in my classroom. I'd like to take my students through an inquiry process to determine the type but would love to know ahead of time, so I can prepare the most fruitful guiding questions. Your expertise and guidance is greatly appreciated. It is 18" wide and as positioned, 11" from top to bottom. Thank You!

Hi all, I recently acquired the below fossil, a pair of articulated jaws, purportedly from Pachystropheus rhaeticus, still with teeth, found at Garden Cliff/Westbury-on-Severn. Whether I wasn't paying proper attention when I bought it or just hoping there wouldn't be any pyrite on the piece, when I received the specimen it turned out that there are quite numerous pyrite-crystals growing to the side of the fossil. As it's quite an unusual piece that I'd rather like to keep, I'm now looking for people with experience with pyrite from the Garden Cliff location. In essence, I'd like to ask how stable the pyrite from this location typically is: whether it decays into a black oxidation product or starts blooming with time. How concerned should I be about the stability of this piece? The pyrite itself looks relatively clean right now, so I'm thinking the rock on which the fossil sits hadn't been exposed for too long. But any advice would be welcome. @Welsh Wizard @Pterygotus @DanJeavs

Our recently discovered Devonian Phyllocarid is back from our preparator. Found on Collecting trip 4/9/2021 in New York state (#3 Phyllocarids we have with complete mandibles). This rare specimen has the classic pyritized Roemerella brachiopods attached to its carapace and the detail of the carapace itself is well preserved. What I was hoping and had very little chance of being antenna are serrated hinge lines. I never seen this on other specimens and the detail is amazing under magnification. The pincher like mandibles look to have color or pattern markings near the tips. I'm pretty sure the jaws are in life position. Phyllocarids are not common and complete or nearly complete specimens is rare. The bite marks I see on some trilobites I find at the same locality may have been caused by these nasty looking jaws.

Hi, I was wondering if these jaws were fossilized, they’re for bid as Pleistocene but they looked kind of modern.

Could someone help me find PDFs of scientific papers about mammal fossils from the Campanian-Maastrichtian of North America? I'm specifically interested in papers that deal with mammal faunas from the Hell Creek Formation, the Lance Formation and the Dinosaur Park Formation... Thanks for any help Christian

Hello, im new to this forum and had a question. Does anyone know if my Mosasaur jaws are real and how much are they worth?

I can't wait for this Summer's most anticipated prequel blockbuster movie... JAWS The Beginning

I bought this jaw at a fossil show and the only info that came with it was "Badlands USA". The matrix looks Miocene Arikaree to me and not Oligocene but I'm not sure of course. Any information from a mammal/tooth collector will be appreciated. I have an idea of what it might be but I don't want to say anything until I hear from you all. Thanks, Mikey

Helicoprion's bottom jaw is easily the most bizarre of all sharks. With a bottom jaw shaped like a circular saw, just how did this shark kill/eat prey? Did its bottom jaw lash out to inflict debilitating flesh wounds, or did it do something else?

Hey guys. Ive been trying to ID these jaws but to no avail. Is it possible you can help me out? They were collected from Withlacoochee river in west Florida.

@KimTexan asked to see some of my jaw sections so here's a few from the North Sulphur River Texas. This is a nice mix of Xiphactinus and at least 2 species of Mosasaur.

I'm looking for Moroccan mosasaur material (whether isolated bones or a quantity of bones in matrix), particularly halisaurus or prognathodon (will consider any others). [Edit to remove bit where I talk about money, accidentally disregarding the rules of this bit of the forum] Please get in touch if you have anything. I'm in the UK buy happy to trade internationally. Thanks.

Here are 4 very small jaw fragments??, that I would like to see if anyone could ID for me. I realize they are very small, but any help is appreciated as always. 3 pics of each jaw. Thank you, David

I have this jaw that I believe to be a halisaurus but not sure , can anyone confirm this? It's from the cretateous period about 350 million years old and from Khourigba morocco.

Sharks belong to the superorder Selachimorpha in the subclass Elasmobranchii, in the class Chondrichthyes. Listed below are the nine orders of extant sharks. I really believe that to be able to successfully understand and identify fossil shark teeth you need to understand and be very familiar with extant shark teeth. As a result, I’m in the process of acquiring a good number of extant shark jaws which I intend to study and photograph. I’m not trying to acquire the very large grade A type specimens (Wow they cost a lot) but study quality specimens. If you clique on a link you will see a TFF post on the jaw of the indicated species. As I add new jaw posts, I’ll update this list. I’ve included this structure so you can see where each species fits within the Chondrichthyes hierarchy. I hope to be able to add several new jaws per month. These extant jaws can also be found on my family fossil website http://phatfossils.com/ under Extant-References. Cow and frilled sharks ORDER HEXANCHIFORMES Family Hexanchidae (Cow sharks) Genus Heptranchias Rafinesque, 1810 Heptranchias perlo (Bonnaterre, 1788) (Sharpnose sevengill shark) http://www.thefossil...-cow-shark-jaw/ Genus Hexanchus Rafinesque 1810 Hexanchus nakamurai Teng 1962 (Bigeyed sixgill shark) http://www.thefossilforum.com/index.php?/topic/90772-extant-hexanchus-nakamurai-bigeye-sixgill-shark/ Bramble sharks ORDER ECHINORHINIFORMES Family Echinorhinidae (Bramble sharks) Genus Echinorhinus T. N. Gill, 1862 Echinorhinus brucus (Bonnaterre, 1788} (Bramble Shark) jaw http://www.thefossilforum.com/index.php?/topic/90660-extant-echinorhinus-brucus-bramble-shark-jaw/ Dogfish sharks ORDER SQUALIFORMES Family Centrophoridae (Gulper sharks) Genus Centrophorus J. P. Müller & Henle, 1837 Centrophorus granulosus (Bloch & J. G. Schneider, 1801) (Gulper shark) http://www.thefossilforum.com/index.php?/topic/60590-extant-centrophorus-granulosus-gulper-shark-jaws/ Sawsharks ORDER PRISTIOPHORIFORMES Family Pristiophoridae (Sawsharks) Genus Pristiophorus J. P. Müller & Henle, 1837 Pristiophorus cirratus (Latham, 1794) (Longnose sawshark) http://www.thefossilforum.com/index.php?/topic/63013-extant-pristiophorus-cirratus-longnose-sawshark-jaw-and-rostrum/?p=659372 Angel sharks ORDER SQUATINIFORMES Family Squatinidae (Angel sharks) Genus Squatina A. M. C. Duméril, 1806 Squatina nebulosa Regan, 1906 (Clouded angelshark) http://www.thefossilforum.com/index.php?/topic/60499-extant-squatina-nebulosi-clouded-angelshark-jaw/?p=644494 Bullhead sharks ORDER HETERODONTIFORMES Family Heterodontidae (Bullhead sharks) Genus Heterodontus Blainville, 1816 Heterodontus zebra J. E. Gray 1831 (Zebra bullhead shark) http://www.thefossilforum.com/index.php?/topic/90623-extant-heterodontus-zebra-zebra-bullhead-shark-taxidermy-specimen-and-jaw/ Mackerel sharks ORDER LAMNIFORMES Family Alopiidae (Thresher sharks) Genus Alopias Rafinesque, 1810 Alopias superciliosus R. T. Lowe, 1841 (Bigeye thresher shark) http://www.thefossilforum.com/index.php?/topic/61017-extant-alopias-superciliosus-bigeye-thresher-shark-jaw/ Family Lamnidae (Mackerel sharks) Genus Carcharodon A. Smith, 1838 Carcharodon carcharias (Linnaeus, 1758) (Great white shark) http://www.thefossilforum.com/index.php?/topic/64118-extant-carcharodon-carcharias-great-white-shark-jaw/#entry670899 Genus Isurus Rafinesque, 1810 Isurus oxyrinchus Rafinesque, 1810 (Shortfin mako) http://www.thefossilforum.com/index.php?/topic/59995-extant-isurus-oxyrinchus-mako-shortfin-shark-jaw/ Family Odontaspididae (Sandtiger sharks) Genus Carcharias Rafinesque, 1810 Carcharias taurus Rafinesque, 1810 (Sandtiger shark) http://www.thefossilforum.com/index.php?/topic/90835-extant-carcharias-taurus-sandtiger-shark-jaw/ Carpet sharks ORDER ORECTOLOBIFORMES Family Hemiscylliidae (Bamboo sharks) Genus Chiloscyllium J. P. Müller & Henle, 1837 Chiloscyllium punctatum J. P. Müller & Henle, 1838 (Brown-banded bamboo shark) http://www.thefossilforum.com/index.php?/topic/60730-extant-chiloscyllium-punctatum-brownbanded-bamboo-shark-jaws/ Ground sharks ORDER CARCHARHINIFORMES Family Carcharhinidae (Requiem sharks) Genus Carcharhinus Blainville, 1816 Carcharhinus falciformis (J. P. Müller & Henle, 1839) (Silky shark) http://www.thefossilforum.com/index.php?/topic/60143-extant-carcharhinus-falciformis-silky-shark-jaw/ Carcharhinus obscurus (Lesueur, 1818) (Dusky shark) http://www.thefossil...usky-shark-jaw Genus Galeocerdo J. P. Müller & Henle, 1837 Galeocerdo cuvier (Péron & Lesueur, 1822) (Tiger shark) http://www.thefossilforum.com/index.php?/topic/61241-extant-galeocerdo-cuvier-tiger-shark-jaw/?p=652866 Family Hemigaleidae (Weasel sharks) Genus Hemipristis Agassiz, 1843 Hemipristis elongata (Klunzinger, 1871) (Snaggletooth shark) http://www.thefossilforum.com/index.php?/topic/61407-extant-hemipristis-elongatus-snaggletooth-shark-jaw/?p=654410 Family Scyliorhinidae (Catsharks) Genus Atelomycterus Garman, 1913 Atelomycterus marmoratus (Anonymous, referred to E. T. Bennett, 1830) (Coral catshark) http://www.thefossilforum.com/index.php?/topic/61194-extant-atelomycterus-marmoratus-coral-catshark-jaws/ Family Sphyrnidae (Hammerhead sharks) Genus Sphyrna Rafinesque, 1810 Sphyrna mokarran (Rüppell, 1837) (Great hammerhead) http://www.thefossilforum.com/index.php?/topic/64506-extant-sphyrna-mokarran-great-hammerhead-shark-jaw/?p=674826 Family Triakidae (Houndsharks) Genus Hemitriakis Herre, 1923 Hemitriakis japanica (J. P. Müller & Henle, 1839) (Japanese topeshark) http://www.thefossil...tope-shark-jaw/ Genus Mustelus H. F. Linck, 1790 Mustelus asterias Cloquet, 1821 (Starry smooth-hound) http://www.thefossilforum.com/index.php?/topic/64566-extant-mustelus-asterias-starry-smooth-hound-shark-jaw-and-fins/?p=675455 I have also posted common and uncommon extant shark teeth at the below links: http://www.thefossilforum.com/index.php?/topic/83847-rhincodon-whale-shark-and-cetorhinus-basking-shark-extant-and-fossil-teeth/&tab=comments#comment-902499 http://www.thefossilforum.com/index.php?/topic/84144-some-uncommon-extant-shark-teeth-2/&tab=comments#comment-899269 http://www.thefossilforum.com/index.php?/topic/83808-some-uncommon-extant-shark-teeth/&tab=comments#comment-894590 Marco Sr.