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  1. Kikokuryu

    Elrhaz Crocodylomorph Fang?

    While I was sorting through my collection of croc fossils, I came across these Elrhaz Formation teeth I bought 6 months ago and never did figure out what they were. I assume they are croc and not some kind of fish, though I could be wrong. I've never seen these apart from the one source I purchased them from. I've been told they were Sarcosuchus, then Kaprosuchus, then Suchomimus. Pretty sure it's not Sarcosuchus, and the images I can find of Kaprosuchus don't seem to match. Suchomimus, I don't know, but my gut feeling is, no, I've seen dozens of Suchomimus and fake-Sucho crocs, an
  2. Troodon

    Utahraptor Project

    Trapped in an 18,000-pound block of quicksand now turned to stone is a hidden treasure of well-preserved Utahraptor fossils. Utahraptor ostrommaysorum is a large (around five meters or 18 feet long), feathered, predatory theropod dinosaur from Utah’s early Cretaceous (~124 million years ago). Utahraptors sported huge sickle claws on their second toes, with the largest specimen measuring at 22 cm (8.7”) long. Utahraptor is a dromaeosaurid dinosaur — popularly called “raptors” based on the Jurassic Park movie franchise shorthand for it's sickle-clawed stars. The illustration below s
  3. After our two-day fossil hunt in NW Queensland, Australia we collected a few specimens and fish mash material to sort for micro fossils at home. I collected a pieces of mudstone/siltstone with a few lizard fish teeth sticking out I didn't think much of it at the time. Once home I washed and started to prep the fossil, I was happy to find and expose a large section of its jaw. While lizard fish fossils are extremely common, I was happy with the result. Please let me know what you think of the prep and what else I can do this has been a weak point of my fossils collecting ,the fossils are of Ear
  4. Went out to the Central Texas Coryell County and looked for some Early Cretaceous fossils. I recognize most of these fossils like Exogyra Texana, Gastropods, and clams I found before, but I can't seem to ID one long elongated bivalve that looks a modern razor clams.
  5. Creek - Don

    Central Texas fossil hunt

    I took a advantage of the cool weather today (low 90's) and headed out to Central Texas near Waco. This was first time hunting in the Texas Paw Paw formation ( The Paw Paw Formation is a geological formation in Texas whose strata date back to the late Albian stage of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation). I didn't find any dinosaurs , but found plenty of ammos on the cliff and in the creek bed. It was an interesting experience finding few ammonites. Here are few photos that I snapped today. Bea
  6. StevenJD

    Dinosaur Tracks

    Thought I would share some of my Acrocanthosaurus tracks in my collection from Texas. These are from the Glen Rose Formation. Anyone who has dino tracks, please feel free to post them here on this thread too...would love to see them! The associated pair are big...both over 20 inches long.
  7. Hello Fossil Friends, Saw this in the news today so thought I’d share: ******************** World's smallest dinosaur egg fossil discovered in Japan Source Link A team of researchers said Tuesday it has discovered the world's smallest dinosaur egg fossil, measuring about 4.5 centimeters by 2 cm, in western Japan. The fossil of the egg, estimated to have weighed only about 10 grams more than 100 million years ago, was found in a stratum dating back to the Early Cretaceous period in Tamba, Hyogo Prefecture, according to the
  8. blackmoth

    Early Cretaceous dragonfly wing?

    Here is a piece from the one of the Early Cretaceous formation in West Beijing. I could not find any clues for ID. I spliced the closeups .
  9. Creek - Don

    Heteromorph ammo?

    Found these next to the creeks in nearby Lake Texoma. I'm thinking this maybe the heteromorph ammos, but not quiet sure. Thing I have noticed are tight coil patterns that are not present on these ammo pieces.
  10. DD1991

    Altispinax paper

    Does anyone have a copy of the following paper to send me: Michael W. Maisch (2016) The nomenclatural status of the carnivorous dinosaur genus Altispinax v. Huene, 1923 (Saurischia, Theropoda) from the Lower Cretaceous of England. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 280(2): 215-219 DOI: http://dx.doi.org/10.1127/njgpa/2016/0576 http://www.ingentaconnect.com/content/schweiz/njbgeol/2016/00000280/00000002/art00008
  11. A new pterosaur-related paper is available online: Rodrigo V. Pêgas, Borja Holgado & Maria Eduarda C. Leal (2019). On Targaryendraco wiedenrothi gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids, Historical Biology, DOI: 10.1080/08912963.2019.1690482 Targaryendraco constitutes a distinct form of Anhanguera-like pterosaur, being united with Aetodactylus, Aussiedraco, Barbosania, Camposipterus, and Cimoliopterus in the new clade Targaryendraconia. It's quite ironic that Targ
  12. A news article about the first Early Cretaceous avialan from Japan is available at the following link: https://www.smithsonianmag.com/science-nature/newly-discovered-fossil-bird-fills-gap-between-dinosaurs-and-modern-fliers-180973551/ Fukuipteryx is the first Early Cretaceous non-ornithothoracine avialan to be described from an Asian locality outside China or Mongolia. Since Fukuipteryx has a pygostyle and is recovered as basal to Jeholornis, it is unclear whether some non-pygostylian birds had a pygostyle. Link for original description of Fukuipteryx:
  13. For those of us fortunate to obtain specimens before the ban was put in place here is a study published earlier this year that looked at a fair number of teeth. The blog provides a good read for collectors plus other readings in their references.. Blog http://rexmachinablog.com/2019/09/04/thailand-spinosaur-teeth/ Paper https://www.researchgate.net/publication/332698408_Spinosaurid_theropod_teeth_from_the_Red_Beds_of_the_Khok_Kruat_Formation_Early_Cretaceous_in_Northeastern_Thailand Wongko et al. found in the
  14. Manticocerasman

    Our fossil hunting holiday trip

    Natalie81 and I are back from our fossil hunting holiday. On the 20th of july we left for a long camping and fossil hunting week in the UK, we took the ferry in Calais to Dover, drove to Porthsmouth and the 2nd ferry to our 1st stop: 5 days on the Isle of wight. the 1st day on the Island, we prospected the beaches on the the south west of the isle where the Wealden cliffs could deliver some dinosaur remains.We had no luck this time. the 2nd day we went to the southern part of the Island where we could find some cenomanian ammonites in the chalk. T
  15. Troodon

    New Theropod from Brazil

    Noasaurinae represents an enigmatic group of small-bodied predatory theropod dinosaurs best known from the iconic Masiakasaurus knopfleri, from the latest Cretaceous (Maastrichtian) of Madagascar. This paper describes a new species from Brazil, Velocisaurus paranaensis . This paper might be a good reference source for material found in the Kem Kem of Morocco since Deltadromeus agilis or may be possibly related to Noasaurinae. Systematic: Abelisauroidea (Bonaparte and Novas, 1985) Noasauridae Bonaparte & Powell, 1980) Noasaurinae (Bonaparte & Powell, 1
  16. Does anyone have a copy of the following paper: MARTIN V. & BUFFETAUT É. 1992. Les iguanodons (Ornithischia – Ornithopoda) du Crétacé inférieur de la region de Saint-Dizier (Haute-Marne). Revue de Paléobiologie 11: 67-96.
  17. Troodon

    New Giant Pliosaur, Columbia

    This paper came out in December, did a search but could not find any previous posts. My apologies if it's already been posted. Meet Sachicasaurus vitae, the newest giant pliosaur, an almost 10 m (35 ft) goliath from early Cretaceous, 130 Ma from what is now Colombia. https://www.researchgate.net/figure/Sachicasaurus-vitae-gen-et-sp-nov-holotype-MP111209-1-Photograph-and-schematic_fig2_331043547 Photos by Jim Kirkland
  18. A few weeks after my mother found her most recent cidarid in an Edwards formation check dam, I took a few minutes to swing by the same dam to see for myself what else could be found. Within minutes I dug up a cylindrical fossil that for a few weeks puzzled me due to its resemblance to a belemnite phragmocone. Then on Wednesday night I went to the DPS meeting and afterwards met briefly with Professor Andy Gale and showed him this specimen. He identified it as a rudist and immediately corroborated that with another DPS member familiar with rudists. What confused me is that it doesn't look like a
  19. Heteromorph

    Edwards Check Dams

    A few weeks ago my mother, Stella (dog), and I went to a old-reliable heteromorph site in the Atco. After I dragged all my equipment to the part of the site that I was going to work, she went walking with Stella to look at some of the check-dams full of brought in Edwards limestone, chicken wire bags full of the brought in matrix put in the ditches for sediment control. In 2017 while we were at the same Atco site she was looking at a dumped pile of the Edwards and found a rare cidarid (see thread here) that compares well with Temnocidaris (Stereocidaris) hudspethensis. The sight of seeing that
  20. DD1991

    Mongolostegus paper

    Hi, Does anyone have a copy of this paper: T. A. Tumanova & V. R. Alifanov (2018) First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian-Albian of Mongolia. Paleontological Journal 52(14): 1771-1779. DOI: https://doi.org/10.1134/S0031030118140186 https://link.springer.com/article/10.1134/S0031030118140186 If a copy is available, then I'd appreciate it if they send me one, because of the high cost of purchasing online access at Springer.com, but also because it's clear that Mongolostegus is the stegosaur that Ulansky informally named "Wuerho
  21. One if my favorite and cool dinosaur groups are alvarezsaurian with their unique forelimb. Here we have two new species being described from the early cretaceous of China, Xiyunykus pengi and Bannykus wulatensis. https://www.cell.com/current-biology/fulltext/S0960-9822(18)30987-4#.W370yzRIRZ4.twitter One of the first informational Topics I put together
  22. Xenoposeidon proneneukos is a sauropod dinosaur from the Early Cretaceous Hastings Group of England. It is represented by a single partial dorsal vertebra, NHMUK PV R2095, which consists of the centrum and the base of a tall neural arch. https://peerj.com/articles/5212/ Taylor MP. (2018) Xenoposeidon is the earliest known rebbachisaurid sauropod dinosaur. PeerJ 6:e5212
  23. Calvert Cliff Dweller

    Possible Maryland Arundel formation find

    Hi Guys, Thanks for the help on the Sturgeon ID last night folks. I have one more for you tonite, I acquired a supposed Possible early Cretaceous item from Prince George’s County Maryland. Anyway I could definitely use some help on this peculiar looking fossil. Thanks in advance folks I know somebody on the forum can nail this Alien looking creature down. The Cliff Dweller
  24. Troodon

    New Dinosaur from Arkansas

    A new species of dinosaur unique to Arkansas is being recognized by the scientific world thanks to an article published in today's Journal of Vertebrate Paleontology. Its an Ornithomimosaur called Arkansaurus fridayi and based on a metatarsal and partial foot. http://www.arkansasmatters.com/news/local-news/its-official-new-arkansas-dinosaur-named/1058934863 Paper for SVP members https://www.tandfonline.com/doi/abs/10.1080/02724634.2017.1421209?journalCode=ujvp20
  25. Troodon

    New Ankylosaur from China

    Paper describes the first definitive and the best preserved ankylosaurid dinosaur ever found in southern China, Jinyunpelta sinensis. Check out that weird hexagonal tail colub https://www.nature.com/articles/s41598-018-21924-7
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