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  1. Mochaccino

    Permian reptile premax/nasal jaw?

    Hello, Could I get an ID for this little premaxillary/nasal jaw piece? It's from the Permian-aged Ryan Formation near Waurika, Oklahoma, USA. It measures a little over 1 cm including the tooth, and seems to be from the right maxilla. I believe it contains the anterior border of the nasal opening. The seller says it could be from a Secodontasaurus or undescribed reptile.
  2. Mjq8

    Mosasaur jaw 3

    Khorigba, morocco looks like matrix instead of jaw.
  3. Okeubler01

    Fossil Vertebrate from Florida

    Any thoughts on what this is? It was collected inland in Sarasota county. It looks to me like a Jaw from something. It has groves for teeth?
  4. 12.6" Mosasaur Prognathodon Fossil, 2 lbs 6 ounces, 4.7 inches wide, 1.5 inches thick Location- Qued Zem, Morocco Seller doesn’t mention anything about repair or restoration so I’m not sure about that I’m wondering if it’s restored. Are the teeth original to the jaw? And are those bite marks
  5. Crazyhen

    Nothosaur's Lower Jaw?

    Is this a notosaur's lower jaw? It is from Yunnan of China. And is it a cervical vertebra at the lower left end of the jaw?
  6. johntaylor

    Help ID Fossil

    Hello, A family friend passed away and left me his rock, mineral, and fossil collection. Much of it was labeled, but there were several boxes of odds and ends that I’ve been working to identify. I believe this is fossilized bone as it’s heavy for its size. Forgive me if this is just bone. I don’t know where this is from, but my friend collected in CA primarily in the 70s through 80s. Most of his stuff was from local shows around that time. Any ideas of what this might be?
  7. Shellseeker

    Odd broken Shell

    Hunting 10 days ago, I found a fossils at different spot and now have the time to show these: I believe it to be a Tapir right side mandible with no teeth. As time permits , I may try to ID which tapir. Upper right is an antler stub, then a barnacle cluster and a number of shells that I have not IDed. I think the coral on the right is Solenastrea hyades, which did exist in the Pliocene_Pleistocene of Florida But the fossil I want to identify is this: What is it ?... echinoid ? I have a sand dollar that is something like that... maybe gastropod worn down to an inner slice ? In this case, your guess is definitely as good as mine, because mine is not very good.
  8. Sebassie

    Fish jaw with teeth

    I am once again asking for your expertise! This is one of the nicest fossils I’ve found, considering fish jaws and teeth are not that rare - but finding a jaw with teeth inside doesn’t happen that often at this beach. It was found at the Zandmotor beach in the Netherlands. This beach is known for Pleistocene mammal fossils. Fish vertebrae and teeth are also common, which may be way older than Pleistocene. I posted this fossil on Reddit some time ago too, but wasn’t able to get a conclusive answer. Someone suggested it might be amiid, but I don’t think amiid are found here. Could it be esox lucius (pike)? The total length is just short of 4cm. Unfortunately I had to apply paraloid before desalination, because the fossil was already starting to fall apart.
  9. This is being sold as a Spinosaurus premaxillary jaw from the Kem Kem, but I'm suspicious. Any opinions? And if not Spinosaurus, what could it be? Size 23 cm / 9.06 inch
  10. Microraptorfan

    what animal is this jaw from, hell creek?

    spotted this online, claims to be a dinosaur jaw from hell creek, but is it actually from a dinosaur, surely it could be from a croc aswell, anyone more knowledgeable have a better id?
  11. Mioplosus_Lover24

    Whiteriver Jaw/Skull Fragment

    Got this jaw/skull piece at a shop recently that was labeled Hyracodon. I don't think it looks like Hyracodon, but I don't know what it could be. Any ideas?
  12. CM8

    Interesting Hell Creek jaw

    Hi all, This jaw was just listed on a particular auction site and caught my eye. Locality according to the seller is Hell Creek formation, Montana. The fossil is 15mm long. Their ID is just "dinosaur" of unknown species. To my amateur eyes, the size and "shelf" on the inside of the bone makes me think lizard, but the teeth really look like those of dromaeosaurs. Any thoughts on ID? Lizard, juvenile dromaeosaur, or bird even?
  13. deltav2

    Fish jaw

    From the album: Middle eocene fossils from Qatar

    Some kind of crusher fish jaw, presumably Pycnodont, collected from midra shale formation in Qatar, Middle eocene aged. Around 6mm in size. One tooth can be seen still embedded into the jaw. Might be the first specimen of this kind ever found here
  14. JJT3

    Wolf Jaw bone?

    Hi Guys, On our hunt today for shark teeth my daughter found this jaw bone. It feels fossilized. Found in eastern NC in a stream that cuts through a lot of different ages including Pleistocene deposits. What do you guys think? Thanks, John
  15. The genus Centrophorus sp. represents a very interesting group of sharks within the Centrophoridae (Squaliformes), which can be found up to about 3000m below the sea surface. The largest representatives of this group reach a body length of 170cm. Not only because the sharks of this group are among my favorite sharks, but also because fossil finds of this species are extremely rare, I decided to write about this topic and compare fossil and recent Centrophorus species with each other, as well as collect the known information about them. The modern genus Centrophorus has been repeatedly revised, rewritten, rearranged, species synonymized and added again in recent years, which makes it difficult to keep an overview. According to my count, the genus currently includes a maximum of 17 described species and is distributed in all deep-sea regions worldwide. The 17 known modern Centrophorus species are: C. acus (synonymous with C. granulosus according to White 2013, but still often considered independent), C. atromarginatus, C. granulosus, C. harrissoni, C. isodon, C. lesliei, C. longipinnis, C. lusitanicus (probably a cluster of different species), C. machiquensis (doubtful), C. moluccensis, C. niaukang (synonymous with C. granulosus according to White 2013, but still often considered independent), C. seychellorum, C. squamosus, C. tessellatus , C. uyato, C. westraliensis, C. zeehaani The fossil records are limited to 3 species, Centrophorus granulosus, squamosus and primaevus. They appear from the late Cretaceous (Haumurian) or early Paleocene (Keyes, 1984). It is possible to distinguish different species based on their teeth, but in many cases it is very difficult, especially without locality data and due to the lack of and contradictory information. I would like to show you the teeth of 9 extant Centrophorus species from my collection and the 3 known fossil species. I would particularly like to focus on their teeth, as they are almost the only thing that can be detected as fossils and also what is most likely to get from the recent species. Since my English is unfortunately not good enough to describe the tooth shape perfectly, I will let the pictures do this The tooth formula describes the number of teeth in the upper and lower jaw. I have summarized them myself from the literature for most of the species, since there were often different numbers to be found. Centrophorus squamosus Is one of the largest representatives of this group (up to approx. 170cm) and is distributed worldwide. It can be found down to a depth of 2400m. The fossil record is currently limited to New Zealand (Keyes, 1984). Tooth formula: 30-38 / 24-32 Keyes, 1984 (fossils, found at different localities in New Zealand): Extant teeth/ jaw from my collection (35 / 30; 15x12cm): Centrophorus primaevus Extinct representative of this group (lived in the Late Cretaceous, Santonian). It is a relatively small representative with a body length of approx. 0.5m (previously known). Tooth formula: Unknown The fossils shown are from Lebanon (Kriwet & Klug, 2009): Centrophorus granulosus Also a large representative of this group (up to 170cm). The species is distributed worldwide, but not in the Mediterranean where it is replaced by C. uyato. It occurs to a depth of about 1500m. The fossil records are currently limited to France (Ledoux, 1972). Tooth formula: 36-43 / 28-32 Ledoux, 1972 (fossils from France): Ebert & Dando, 2021: My collection (39 / 30; 9x8cm): However, most fossil Centrophorus teeth found in publications are not assigned to a specific species, but only as Centrophorus sp.. Here are a few sample images from various publications: Mannering & Hiller, 2008 / Schutter & Wijnker, 2012: Below I would like to post pictures of the remaining extant Centrophorus species. Unfortunately, for some species the information is very scarce and, as I said, often contradictory.
  16. Ericlin

    Crocodile or Spinosaurid jaw

    Hello, saw this for sale and was wondering whether it was croc or spinosaurid, it’s from Morocco, Africa. I’m leaning towards spinosaurid, but I’m not an expert. Please also let me know if there is any repairs/restro. Thanks a lot!
  17. Ihopeitsnotarock

    Possible bone fossil

    Hi there found this walking on a beach, I’m pretty sure it’s a fossil this time although I’ve been proven wrong many many times before thanks
  18. Fin Lover

    Fish and cetacean jaws for ID

    I found two fossilized jaw segments yesterday that I need help IDing, please. I believe the first is either barracuda or wahoo, but I've done a little research and am still not sure how to tell them apart. My guess is wahoo, based on the tooth thickness increasing as it gets closer to the root, but some descriptions I've seen of wahoo teeth describe them as "needle-like", which these are not. Jaw section is 50mm long. Tooth goes from about 1 mm thick at the point to about 5mm at the base. Found in an area that is heavily Oligocene but with a small amount of Miocene (coming from an overlying Pleistocene lag deposit). Jaw #2 I believe is cetacean... something like an echoventator. I previously found a similar one in the same creek, but the spacing between those teeth were greater (both have the double-root teeth). This creek is also Oligocene with some Miocene from overlying lag deposits. 62mm long and 32mm tall. Wet to show the double-root tooth sockets better: New jaw on left, other from same location on right: I hate to @ people if I don't have to but, from reading old posts, I think @Al Dente and @MarcoSr can probably ID wahoo vs. barracuda. Thanks so much!
  19. Danielb

    Early mammal jaw ID

    Hi I recently bought a pallet of white river fm fossils and this can with it. The box said mammal fossils and at first I thought maybe hell creek but I don’t have any information on where it’s from. Much appreciated! -Daniel.B
  20. Rainbasin

    Equus?

    This is the best find for me to date! I believe it is an equus and I found it in the Platte River in central Nebraska. I found a single tooth first and it looks like it came from the jaws. One question I have....is there anything I should do with this when it dries out? I want to be able to display it in my home. Thank you!
  21. I recently purchased an odd little archosaur jaw from the Wealden at Bexhill-on-Sea in East Sussex, UK. It's 14.88mm in length and 4.03mm tall, with a single remaining tooth of approximately 1mm in height. The seller told me he thought it would be Aigialosaurus, something I thought odd due to that genus only being known from Hvar in Croatia, and being much younger (Cenomanian) than this specimen (Valanginian). However, it turns out that a jaw was found at this locality at some point that has since been moved to the Bexhill Museum and was identified as Aigialosaurus (though, based on what, I don't know): While I'm working on figuring out whether the jaw in the other thread can indeed by attributed to an early mosasauroid (Aigialosaurus?), I wanted to ask people in this thread what they make of my particular section of jaw. Ventral Terminus (end of jaw) 1 Terminus (end of jaw) 2 Observe the tooth attachment with raised sockets, not unlike in mosasauroids. Details of tooth attachment. Here are the photograph of the jaw from Bexhill that was identified as Aigialosaurus again, for ease of reference (source): So, what do you guys think? Reptile or fish? Crocodile, lizard? Do you think my jaw compares well to the one identified as British Aigialosaurus? @caterpillar @Praefectus @ThePhysicist
  22. pachy-pleuro-whatnot-odon

    British Wealden aigialosaur

    Hi all, I was recently told about supposed Aigialosaurus/aigialosaurid (mosasaurus) material from the Wealden at Bexhill-on-Sea in East Sussex, and was wondering whether anybody knows anything more about this. Because, as far as I'm aware (Wikipedia), Aigialosaurus is described from Hvar in Croatia and, moreover, temporarily restricted to the Cenomanian, whereas these remains, stemming from the Wealden, would be Early Cretaceous in age (Berriasian through Aptian) - most likely Valanginian, as they were recovered from Bexhill-on-Sea. (Image source) I must say these remains do look rather mosasauroid, although I've been unsuccessful in finding further information on the specimen, which is supposed to be housed in the Bexhill Museum. The person who first told me about them remembers having seen a newspaper article, believes the British Natural History Museum was involved with the specimen back then, and had heard about a paper being written about it. That's about all I have to go on for now. So my questions right now are: does anyone have more information on this specimen; know of the publication; and what do people here generally make of this piece: is it mosasauroid, or could it be something else? @paulgdls @DE&i @Praefectus @caterpillar @The Amateur Paleontologist @Kosmoceras @ThePhysicist @Welsh Wizard @DanJeavs
  23. couple of smalls pieces found sifting and really not sure what that is??
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