Jump to content

Search the Community

Showing results for tags 'theropod'.

More search options

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. carcharodon, pliocene, cypresshead formation, florida.
  • Search By Author

Content Type


  • Fossil Discussion
    • General Fossil Discussion
    • Fossil Hunting Trips
    • Fossil ID
    • Is It Real? How to Recognize Fossil Fabrications
    • Partners in Paleontology - Member Contributions to Science
    • Questions & Answers
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Member Fossil Trades Bulletin Board
    • Member-to-Member Fossil Sales
    • Fossil News
  • Gallery
  • Fossil Sites
    • Africa
    • Asia
    • Australia - New Zealand
    • Canada
    • Europe
    • Middle East
    • South America
    • United States
  • Fossil Media
    • Members Websites
    • Fossils On The Web
    • Fossil Photography
    • Fossil Literature
    • Documents


  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Sir Knightia's Blog
  • Terry Dactyll's Blog
  • shakinchevy2008's Blog
  • MaHa's Blog
  • Stratio's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • Lindsey's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Back of Beyond
  • St. Johns River Shark Teeth/Florida
  • Ameenah's Blog
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • nicciann's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • maybe a nest fossil?
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • xenacanthus' Blog
  • barnes' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • Emily's MotE Adventure
  • farfarawy's Blog
  • Microfossil Mania!
  • A Novice Geologist
  • Southern Comfort
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • The Crimson Creek
  • Stocksdale's Blog
  • andreas' Blog test
  • fossilman7's Blog
  • Hey Everyone :P
  • fossil maniac's Blog
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Hihimanu Hale
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • TyrannosaurusRex's Facts
  • PaleoWilliam's Blog
  • The Paleo-Tourist
  • The Community Post
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles


  • Calendar


  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Bony Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Found 116 results

  1. Hi All, im currently looking for some of the more rarer/hard to obtain theropod teeth to add to my collection (not the types like T. rex, carcharodontosaurus, nanotyrannus, albertosaurus etc) and have some teeth myself I’d be willing to trade. Please view my post in the member collections section (my small theropod teeth collection) and if you have any theropod teeth or are interested in mine we could maybe come to a deal. Please PM me if you potentially have any teeth for trade and we can go from there. Thanks Paul
  2. Hi All, I'm new to this forum and thought I'd send over images of my theropod teeth plus one extremely impressive sauropod from Madagascar. Hope you like them! Paul
  3. Kem kem vertebrae

    I bought this partial vertebrae about a week ago from a moroccan dealer for a very good price (I'm currently trying to identify many vertebrate fossils from Kem Kem, and this is somewhat a pause between two spinosaurid caudal vertebrae and a very big crocodilian mandible articular bone). Since many of you are way more experienced than me regarding moroccan vertebrae, I'm searching for more opinions. This small/medium sized specimen lacks most of the processes, but has some recognizable elements. It is laterally compressed and has a small keel running in its ventral region. I identified It as a caudal vertebrae, and the dealer told me it was a theropod. I don't think he had the skills to seriously identify anything, and I can't understand if It really is a theropod or a crocodile.
  4. Theropod tooth from Kem Kem

    I recently received as a gift this very small theropod tooth fragment from Morocco. I labeled it as Theropod indet., but I'm searching for a possibly more specific ID. In my opinion it may be a 2 cm broken tip of a small tooth from a Carcharodontosaur, but I also thought of the Abelisaur possibility. I tend to ignore the relatively unknown Deltadromeus and the hipothetical dromaeosaur, given the lack of good material, but I'm open to suggestions. Here you can see two focus photos of the serrations I took with a small digital microscope. As you see, there is a slight difference between the two sides. Still001.bmp Still004.bmp
  5. Theropod jaw section ?

    Would this be a theropod jaw section its was found at Judith river formation.
  6. Can across this one recently on our favorite auction site, a torvosaurus tooth from colorado. Though with no intention of buying especially at the high price tag it is at I have my suspicions, the seller claims it its 100% no repairs or restoration. Looking at the pictures I highly doubt it as it looks extremely repaired to me and some of it especially in the picture zooming into the tip reminds me of the little air holes found in fake cast trilobite. Idk how much is repaired or even if the whole specimen is fake, I'd be interested to hear what you guys think. Definitely a gigantic red flag to me.
  7. Isolated theropod Teeth from the Kem Kem Basin continue to be a mystery. Plan on documenting all the different morphologies I have in my collection. Can provide discussion and aid in identification at some point. Just a note, different morphologies do not necessarily mean different species. There is lots of tooth variations in the dentition of a theropod, why its so difficult to nail down an ID even in the best of circumstances. Morph Type 1 Anterior Tooth Distal margin is almost straight Mesial margin strongly recurved Mesial carina extends 3/4 crown height Denticles are oriented towards the tip Serration Density: Distal - 2/mm (More dense toward the base) Mesial - 1.7/mm (More dense toward the base) Morph Type 2 (possible Carcharodontosaurid) Anterior Tooth Distal margin is slightly concave Mesial margin strongly recurved Mesial Carina extends to the cervex Denticles are oriented toward the tip Interdental sulci present Serration Density: Distal: 2/mm (More dense toward the base) Mesial: 1.9/mm (More dense toward the base) Morph Type 3 Maxillary? Mesial carina extends 3/4 crown height Denticles parallel to the base and rounded at tip Serration Density: Distal: 2.2/mm (More dense toward the base) Mesial: 2.4/mm (More dense toward the base) Additional Example Morph Type 4 (Possible Dromaeosaurid like) Lateral Tooth Tooth is recurved Mesial Carina extends to 3/4 crown height with a lingual twist Denticles parallel to the base Serration Density: Distal: 3.6/mm Mesial: 4.6/mm Additional Example Serration Density: Distal 3/mm, Mesial 5/mm Morph Type 4A (Dromaeosaurid like) Tooth is slightly recurved Mesial Carina extends to base with a lingual twist Denticles parallel to the base Serration Density: Distal: 3.6/mm Mesial: No Serrations Additonal Example Serration Density: Distal 3.3/mm, Mesial: No Serrations
  8. A couple of Kem Kem bones

    Hi guys, a couple of bones here I'd like a little help with please:
  9. Theropod teeth from Alberta??

    Hi guys, I recently made a trade with someone for some theropod teeth fragments from Alberta, I was just wondering if their was any chance of possibly nailing down what these teeth came from other then theropod. As always many thanks guys, GK
  10. Hi everyone! As I have mentioned several times, being a 3D artist I am trying to move into the field of paleoart. Recently I have started modeling Ceratosaurus nasicornis in 3D, and I really want to make it as accurate and plausible as possible. Here is what I have got so far: a basic model done in 3ds Max. After this I am planning to take it to ZBrush and add more muscle definition, sking wrinkles, scales and other fine details. At this stage this is just the base and I would like to share it with you guys in order to receive some feedback from those who know their dinosaur anatomy. Did I get the shape and overall structure right? Constructive criticism is more then welcome, pretty much this is what I am asking for here. 1. Mesh 2. Body 3. Perspective 4. Back 5. Top view 6. Head close-up
  11. Very tiny dinosaur tooth

    I was sorting some North Carolina Cretaceous matrix this week when I saw a shape that reminded me of a Theropod tooth. I really didn't think it was because of the tiny size but when I stuck it under the microscope I saw a few serrations on the distal side. Now I'm convinced it is a Theropod tooth. I've looked up some Cretaceous lizards (Teiids and Varanids) but their teeth are different but varanids can be somewhat similar. The matrix is from a late Campanian lag deposit and most of the fossils in it are heavily abraded. This is the first theropod tooth I've found. No sign of serrations on the mesial side but they could have been worn off if they ever existed. I tried a crude count of serrations by extrapolating the number of serrations per millimeter. The count is somewhere around 8 serrations per millimeter.
  12. My Morrison formation collection

    Here is my Jurassic collection from the Morrison formation. This is a collection I really want to expand so if anyone has any fossils from the Morrison they'd be willing to trade definitely message me. the latest addition to my Morrison formation collection is the large partial Allosaurus vert my parents got me for Christmas. The fossil in the bottom right of the first pic is a chunk of bone, probably Camarasaurus. The fossil in the top right of the first pic is a chunk of bone, probably theropod. Pics 2,3,4= Partial Allosaurus fragilis vertebra, Hanksville Utah Pics 5,6= Allosaurus fragilis vertebra, Wyoming Pics 7,8,9= Allosaurus fragilis tooth, Hanksville Utah
  13. Here's my Two Medicine formation collection from Montana. It's all Daspletosaurus besides one Saurornitholestes tooth. I'm hoping to get specimens of some of the Two Medicine herbivores in the future. Pics 2 and 3= Daspletosaurus tooth in matrix Pics 4 and 5= Daspletosaurus partial tibia Pics 6 and 7= Daspletosaurus toe bone partial Pics 8 and 9= Daspletosaurus vertebrae process Pics 10 and 11=Saurornitholestes tooth
  14. My T-Rex and Nanotyrannus teeth

    These are my T-Rex and Nanotyrannus teeth. I acquired most of them pretty recently. They are some of my most prized dinosaur fossils. I'll post my T-Rex/Nano bones soon as well. Pic 1 and 2= Nanotyrannus lancensis tooth, Hell Creek formation, South Dakota Pic 3,4,5= Nanotyrannus lancensis tooth, Hell Creek formation, Montana Pic 6,7,8= Tyrannosaurus rex tooth, Hell Creek formation, Montana Pic 9= Tyrannosaurus rex pieces and tips, Hell Creek formation, Montana Pic 10 and 11= Tyrannosaurus rex tooth, Hell Creek formation, Montana Pic 12= Nanatyrannus lancensis teeth, Hell Creek formation, Montana Pic 13= T-Rex and Nano fragments, Lance formation, Wyoming
  15. Two Kem Kem Theropod Teeth

    Hi all, I have a couple of teeth originating from the Kem Kem basin, that I'm thinking may belong to the same species (whatever that may be). Can't quite decide what they are beyond theropod, so thought the lovely folk here might have some clue.... Tooth #1 has some pretty heavy wear and I get an inkling may have some composition on the base of the tooth, as there is a lot of matrix sitting there. The tooth only has a small number of denticles present on the anterior edge, but they appear to be the same size as those on the distal. Tooth #2 is in much better condition and though the same general shape as #1, it seems to have quite a bit more lateral compression in hand; though that may be because of the smaller size? The denticles on the anterior edge run approx 3/4 down the tooth before ending, and appear to actually be noticeably smaller than those on the posterior edge in this case. Apologies for the quality of the photos (and for the fluff on my index finger that seems to have got in on the act).
  16. Kem Kem Abelisaurid Ulna?

    I found this rather interesting piece on our favourite auction site. It's being sold as a croc vertebra. But it looks a lot like the ulna of an Abelisaurid from the Kem Kem beds. The resemblance with the ulna of Majungasaurus is pretty close. It's a little shorter, but the single bump on the one side seems to fit. While if it was a vertebra, it seems to lack a neural canal. Majungasaurus left ulna
  17. Hi Im prepping out this dinosaur vertebrae and I'm hoping someone can help with ID. Its from the Lower Createous. The bone preservation is very good and it's a nice black colour. You can see what I think are two pleurocoels showing. I think it's a theropod caudal but I'm just guessing. The other side and ends are still covered in matrix but I'll post additional photos when I've prepped more. Any help on the type of dinosaur and any specifics would be greatly appreciated Thanks Nick
  18. Yixian formation theropod tooth

    Does anyone know the ID of his tooth ? its form Yixian formation looking at it I can say its belong to a tyrannosaurid has its robust has well. TB2uUNSbAfb_uJkSnb4XXXCrXXa_!!23247098.jpg_600x600Q50s50.jpg_.webp TB2RAKDgsLJ8KJjy0FnXXcFDpXa_!!23247098.jpg_600x600Q50s50.jpg_.webp TB2PCuBcdHO8KJjSZFHXXbWJFXa_!!23247098.jpg_600x600Q50s50.jpg_.webp
  19. Triassic Tooth

    This is my first post, so please bear with me. I found this tooth this summer in the Rendonda formation in Quay county New Mexico. This should date it to the late Triassic, 202-204 mya. The area where it was found contains almost exclusively Phytosaur fossils, but I am 99% certain that this one is not. It measures about 2.5 cm in length and has one edge with fine serrations. Based on the general shape and serrations, I am guessing some sort of theropod, however I do not know enough about other crocodilian species such as Postosuchus to rule something like that out. Any help would be appreciated, and if you need more pictures/information, feel free to let me know!
  20. 3 years ago a very gullible me bought a lot on ebay containg what were sold as Spinosaurus aegyptiacus teeth. It was pretty much a disappointment, i paid a lot for teeth in a very bad shape, visibly glued together and with sediment still attached to them. I was a beginner at collectig fossils so I considert that purchase as false but needed step. However this particular tooth intrigue me. It's in a very bad shape, but it's different from the others more "pale" (and fortunately better) Spinosauridae sp. teeth that I had in my little collection. It was written that they all comes from the Kem Kem formation, but I don't know if that's true. Can someone identify the specie to which it belog? Thanks Fn8
  21. Theropod sp.

    From the album Dinosaur teeth

    Theropod sp. Jurassic (Bathonian) Isalo III Formation Ambondromany, Mahajana Province, Madagascar
  22. Kem Kem Vertebrae ID Thread

    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 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 cervical vertebrae Spinosaurus dorsal, sacral and caudal vertebrae 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 Sigilmassasaurus dorsal vertebrae Indeterminate Spinosaurid vertebrae Not a whole lot has been published yet, so some bones can probably not be ID'd on genus level. Spinosaurid caudal vertebrae From Paleoworld-101's collection Charcharodontosaurids 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. Carcharodontosaurid cervical vertebrae Abelisaurids Abelisaurid dorsal vertebrae From Troodon's collection Deltadromeus agilis better examples needed 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 Unnamed Titanosaurian mid caudal vertebra Crocodiles more examples needed Kemkemia This crocodile is only known by a single terminal 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
  23. Late Cretaceous Small rib

    We found this little fragmented rib during our last fossil hunting trip. We were lucky to find most of the pieces eroding from the Badlands. We usually come across lots of hadrosaur ribs and this one looks totally different, not just in size, but also in shape. The cross-section near the bend in the rib is more square then the usual oval. Late Cretaceous Alberta, Dinosaur Park formation. Thanks
  24. Straight Outta Mesozoic

    As a graphic design artist I sometimes like to create some paleo-art and pop-art mash-ups. Please feel free to comment.