Search the Community

Theropod toe bone found in the Hell Creek formation Montana. Any ideas what kind of raptor this is from?

Found in the Horse Shoe Canyon formation (Alberta) with several bones including theropod teeth. It has the right shape and size to be a claw. Any ideas? About 1 inch long

Hey all, I got this a while back, but it was too covered in matrix to do any solid ID'ing--until today! Appreciate any ID info/opinions you have. From the Cloverly formation, Montana CH: 12.6mm CBL: 6.8mm CBW: 3.3mm Mesial serration density: about 6/mm Distal serration density: about 3.6/mm Transverse undulations I'm not sure about interdenticular sulci, but I think that box is checked too Prayer

I recently found on the site cults3d a very beautiful and almost complete skeleton of Microraptor gui to print with a 3D resin printer. Here is the link: https://cults3d.com/fr/mod%C3%A8le-3d/art/microraptor-gui-skeleton The only problem was the skull was missing. The creator of this specimen, Florent Germain, had not had time to finalize his skull. He'll put it later, when finished, he said. I was able to print this model and I decided to make the skull myself Lucky me, I was able to use a dental scanner (not too suitable for this kind of models) and to generate a 3d printable file . The STL file of the skull is available for free. I am not a pro of 3D modeling software so be indulgent with the result. This file can be modified or improved for the person who can. Here the link : https://cults3d.com/fr/modèle-3d/divers/microraptor-gui-dinosaur-skull-open-source I haven't tried to print it on a printer, but it should work. Enjoy ! Some photos of the skull and skeleton, I'll update this topic when everything will be finished.

Found this super, super small claw today. Just over half an inch in length. Looks kind of ornithomimid but I’m not sure. Anyone have a better guess? dinosaur park fm

Hi, I saw this listing for a Neovenator tooth from the Isle of Wight UK, found in the Wessex Formation, and was just wondering if this tooth could indeed be from Neovenator, or if it is a theropod indet (might be hard to tell since it is only a partial tooth). Striations partially remain on one side and the tooth is about 3cm. Thanks!

Howdy all, I'm interested in this tooth which has the ID of "Afrovenator abakensis," though the seller makes sure to note that this is not a concrete ID. I'm curious as to how I'd be able to identify this as a megalosaur and possibly an afrovenator. Locality is Nafanfo, Agadez, Niger.

Hi everyone, I got a theropod tooth in Madagascar recently, but I can't clearly know what it is. Any idea about the id? Thnaks! M serration 6/mm D serration 6/mm CH 14.5mm cbl 6mm cbw 4.5mm M serrations extend to the base(I can see under the micro view but can't take a clear photo sadly) also a little fold near the m side surface of the crown. Location is: Near Kamoro river, Madagascar Isalo III fm seller is 100% sure from Jurassic period

I recently saw this tooth for sale identified as a Deltadromeus, but it looks suspiciously similar to teeth sold as "indeterminate Abelisaurid", mine included, so I thought it would be worth checking. The seller has stated the tooth is "17mm x 10mm at the widest points". No other measurements were given. Thanks in advance for any guidance Othniel

Hi everyone, I brought a small collection of hell creek digits and claws, and wanted some help with identification. They come from Garfield county and are mostly small. Appreciate any help and thanks a lot ! first is a tiny claw, theropod or bird?? Measures about .375in second one looks like a theropod claw? Maybe dromeosaurid or struthiomimus ? .5 inches third one is a little over a inch, maybe pachy/thesce? 4th one not sure what species 1.25inch 5th one 1 inch. Turtle? 6th theropod? Dromeosaurid? Troodontid? 1 inch 7th a 1.25inch digit not sure what species. again thanks for all the help, I’m not very comfortable with identification of digits and claws yet :).

Found this week, recalling the info troodon taught me some time back this appears to be theropod material. Wondering if anyone can help me narrow down anything else, maybe what part of the animal & if possible (if it is theropod) whether it’s tyrannosaurid or ornithomimid, as far as theropods in the area that’s all it could be at this size. dinosaur park fm

Thankfully, Morocco offers Theropod Teeth at reasonable prices. They are quite attainable. These 2 teeth, were sold as; Spinosaurus Sp., and Carcharodontosaurus Saharicus. I am aware, that the Spinosaurus tooth has likely been repaired. I believe the Carcharodontosaurus tooth, has not. Hopefully, these id's are correct?

Hiya everyone. Want some opinions on this egg it’s from an old collection and from a reputable seller in the uk. I know a lot of shell is missing but any help on the legitimacy of the egg would be great. cheers

I am tempted to bid on one of these, I haven't got a a portuguese tooth yet. I was wondering if anyone is able to narrow down the species. Tooth 1 14.5mm x 6.8 x 3.7 Tooth 2 - 6.5mm x 3.3 mm, x 1.9 mm thanks for the help

Every year at the Denver fossil show it seems like I pick up some unidentified Kem Kem material. This is because for one it’s cheap, but also because it’s kinda fun to investigate this material. Here are eight pieces I picked up as a bulk set. I have some idea about identification on each of these but would love to hear other’s input. In the following pictures I have the top row being archosaur fossils and the bottom row being fish fossils. My guesses: 1. Caudal(?) vertebra centrum. Croc or theropod, but probably croc. 2. Croc dorsal vertebra 3. Croc centrum 4. Theropod pedal phalanx. Specifically, the distal-most phalanx of toe 1 (the “dew claw”). Narrowest ID I think I could guess we would be Ceratosauria indet., should probably be labeled as Theropoda indet. 5. Two fused fish vertebrae. Are these identifiable any more than this? 6. Gar or gar-like vertebra 7. Chondrichthyan fish vertebra. Maybe Onchoptistis numida? Can that determination even be made? 8. A gigantic ganoid scale. Any guesses just based on size? I’m unfamiliar with all the monster fish in this rock unit. Thanks :)

So, lets figure out vertebrae from the Kem Kem beds. As many of you know the Kem Kem beds has a pretty enigmatic palaeo fauna. There is some literature about it, but not a whole lot. Some of it is behind a paywall and much information is pretty scattered. So I got this idea that maybe we could combine our knowledge and information to collectively get a better picture of which bone belongs to which animal, in this case, vertebrae. I know some of you have some fantastic specimens in your collections, if we combine these in this thread we might be able to see some patterns. We probably won't be able to put a genus or species name on each type, but perhaps assigning certain vertebrae to a morphotype might be possible. With that I encourage everyone that has any vertebrae from the Kem Kem beds to share photos of their specimens and post them here so we can use this thread as a sort of library as well as an ID thread that everyone can use to better ID their Kem Kem vertebrae. So please, share your photos! And it might help to number your specimens for easier reference. I will be updating this first post as new information arises with examples to make ID easier. Theropods Spinosaurids Spinosaurus aegyptiacus Spinosaurus is known for it's tall neural spines, which are pretty characteristic. Unlike Sigilmassasaurus, Spinosaurus does not have the ventral triangular rough plateau on the centra Spinosaurus mid cervical vertebra Spinosaurus dorsal, sacral and caudal vertebrae Caudal vertebrae Nearly complete tail from the neotype specimen of Spinosaurus aegyptiacus Sigilmassasaurus brevicollis Sigilmassasaurus is a Spinosaurid that might be closely related to Baryonyx and Suchomimus. It differs from Spinosaurus in that it has a ventral keel on many vertebrae and a triangular rough plateau on the bottom back end. A is Sigilmassasaurus, B is Baryonyx Sigilmassasaurus cervical vertebrae From anterior to posterior Sigilmassasaurus dorsal vertebrae Indeterminate Spinosaurid vertebrae Not a whole lot has been published yet, some bones can probably not be ID'd on genus level. Spinosaurid caudal vertebrae Anterior caudal: From LordTrilobite's collection Mid-posterior caudal: From Paleoworld-101's collection Mid-posterior caudal: From LordTrilobite's collection This caudal vertebra is less tall and more pinched in the middle of the centrum than the one from Paleoworld-101's collection. Likely due to a slightly more posterior position. Mid-posterior caudal: From LordTrilobite's collection Carcharodontosaurids Due to an old paper Sigilmassasaurus vertebrae are sometimes misidentified as Carcharodontosaurid. These vertebrae should be identified on the basis of the original description by Stromer. Two species of Carcharodontosaurids are known from the Kem Kem beds at this time. Carcharodontosaurus saharicus and Sauroniops pachytholus. Carcharodontosaurid cervical vertebrae Deltadromeus agilis Anterior (left) and mid (right) caudals better examples needed Abelisauroids Indeterminate Abelisauroid distal caudal From LordTrilobite's collection Abelisaurid dorsal vertebrae From Troodon's collection Sauropods Rebbachisaurus garasbae Not a whole lot is known about this titanosaur, as only a few bones have been found. Notice that the vertebrae are very extensively pneumaticised. Rebbachisaurus dorsal vertebrae Sauropod mid caudal vertebra. Possibly Rebbachisaurid. Unnamed Titanosaurian mid caudal vertebra Crocodilomorphs more examples needed Kemkemia This crocodile is only known by a single posterior caudal vertebra. Kemkemia caudal vertebra Turtles examples needed Pterosaurs Azhdarchids Azhdarchid (probably Alanqa) posterior fragment cervical vertebra Azhdarchid Mid cervical vertebra Sources Spinosaurids https://peerj.com/articles/1323/?utm_source=TrendMD&utm_campaign=PeerJ_TrendMD_1&utm_medium=TrendMD http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144695 Sauropods Jeffrey A. Wilson & Ronan Allain (2015) Osteology of Rebbachisaurus garasbae Lavocat, 1954, a diplodocoid (Dinosauria, Sauropoda) from the early Late Cretaceous–aged Kem Kem beds of southeastern Morocco, Journal of Vertebrate Paleontology, 35:4, e1000701, DOI: 10.1080/02724634.2014.1000701 https://www.researchgate.net/publication/304214496_Evidence_of_a_derived_titanosaurian_Dinosauria_Sauropoda_in_the_Kem_Kem_beds_of_Morocco_with_comments_on_sauropod_paleoecology_in_the_Cretaceous_of_Africa Kemkemia sisn.pagepress.org/index.php/nhs/article/viewFile/nhs.2012.119/32 Pterosaurs https://docs.google.com/viewer?url=http%3A%2F%2Fwww.thefossilforum.com%2Fapplications%2Fcore%2Finterface%2Ffile%2Fattachment.php%3Fid%3D432009&fname=journal.pone.0010875.PDF&pdf=true https://riviste.unimi.it/index.php/RIPS/article/view/5967

This is a decent sized footclaw from Niger. I do get they are very hard to identify with species and that is not what I'm after. I am however after if its a Theropod claw or a Sauropod?