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Found 246 results


    An interesting early plesiosaur. http://www.bbc.com/news/science-environment-42339936
  2. Utah's Oldest Dinosaur Fossil

    Found this in the Forums Facebook pages its a paper that describes a sacrum from the Chinle formation of Utah. The Dinosaur Triassic record in Utah is pretty slim and this discovery helps increase their knowledge base. We've recently had posts on Triassic teeth and although this paper does not help us in that area it provides more information on late Triassic dinosaurs of the American west. https://www.utahgeology.org/openjournal/index.php/GIW/article/view/22
  3. From the album alpine triassic Ammonoids

    Size is 40cm x 18cm. Austrotrachyceras austriacum MOJS. (ribbed with nodes, 4cm diameter) on the left lower half, Joannites sp., Arcestes gaytani, Megaphyllites sp., Mojsvarites agenor(on top), small Sirenites sp. and several orthocone Nautiloids and bivalves.
  4. From the album alpine triassic Ammonoids

    Small slab (15cm x 11cm) showing a fauna from the Triassic/Carnian/ lower Julian zone of Trachyceras aon. The biggest black Syringoceras(Nautilus) measures about 4cm. Ammonoids on the slab are Celtites cf. steindachneri MOJS.(ribbed), Sphingites sp., Lobites elipticus, Sirenotrachyceras sp., Monophyllites sp., Arcestes sp., Asklepioceras sp.
  5. 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!
  6. Rhacophyllites neojurensis (QUENSTEDT)

    From the album alpine triassic Ammonoids

    Rhacophyllites neojurensis (QUENST) from Alaunian 2(bicrenatus Zone) Hallstatt limestone. Size 17cm.
  7. From the album alpine triassic Ammonoids

    Cladiscites cf. striatissimus (MOJS.) 5cm, and Tropites subbullatus(HAUER)4cm. Old slab from the historical Raschberg location of Mojsisovics.
  8. Cochloceras suessi

    From the album alpine triassic Ammonoids

    Block with several Cochloceras suessi MOJS., a heteromorph ammonoid of the late Triassic Rhaetian stage. The size of the gastropod shaped ammonoids is 3-4cm. Other visible ammonoids are Arcestes sp. and Megaphyllites sp.
  9. Two Keichousaurus

    Just sharing both of my keichousaurus, the smaller one at the top just arrived yesterday after being lost in the mail for MONTHS. I think they look great together!
  10. Tropites fauna

    From the album alpine triassic Ammonoids

    Upper Carnian/Tuvalian ammonoid fauna from the historical location/ditch on Vordersandling. The shown ammonoids come from a small lense that was found by me several years ago. No coarser ribbed Projuvavites was found only Juvavites bacchus MOJS. Therefore I range this fauna to the dilleri Zone. Tropites aff. subbullatus, Paratropites sp., Discotropites sp., Megaphyllites sp., Sandlingites cf. oribasus and Arcestes sp.
  11. Originally named Sinosaurichthys by Wu et al., the genus was reranked as Saurichthys by A. Tintori (2013) Lit.: Wu, F.X., Sun, Y.L., Xu, G.H., Hao, W.C., Jiang, D.Y., and Sun, Z.Y. 2011. New saurichthyid actinopterygian fishes from the Anisian (Middle Triassic) of southwestern China. Acta Palaeontologica Polonica 56 (3): 581–614.
  12. Monophyllites simonyi (HAUER)

    From the album alpine triassic Ammonoids

    Monophyllites simonyi (HAUER) from the Hallstatt limestone of Austria. Size is 8 cm. Found in the upper part of the austriacum zone.
  13. Trachyceras cf. hekubae MOJS.

    From the album alpine triassic Ammonoids

    Trachyceras cf. hekubae MOJS. from Triassic/Carnian/Austriacum Zone, Hallstatt limestone of Austria. Diameter is about 9cm. Below is a fragment of Neoprotrachyceras thous (DITTMAR). This ammonoid and the orange colour of the rock indicates the austriacum zone.
  14. Sirenites sp.

    From the album alpine triassic Ammonoids

    Sirenites sp. from the Triassic/Carnian, upper aonoides zone. Hallstatt limestone of Austria. Size is about 6cm. Good to see on this specimen is the characteristic feature of Sirenites s. s. that each single rib ends in two venter nodes.
  15. Coelacanth Skull from North Bergen, NJ.

    From the album Triassic

    Diplurus newarki (coelacanth skull) Upper Triassic Lockatong Formation Newark Supergroup Granton Quarry North Bergen, N.J. A gift from Fossildude19, collected 11/27/17
  16. Not a clue but interesting form. My first thought was a weather form ammonite fragment? Found near the Palo Duro Canyon in TX. The area in question includes the following formations. Tecovas Formation: Triassic Trujillo Formation: Triassic Ogallala Formation: Late Miocene to early Pliocene Any help or direction would be appreciated.
  17. I have one more small Triassic Diplurus coelacanth fish collected many years ago in North Bergen, New Jersey. The fish's head is slightly lifting off the shale matrix along its top and bottom, but remains well attached at the front and back of the head -- see the photos. The lift gap along top and bottom is at most 0.5 to 0.67 mm. Pressing on the head results in a micro-movement down. With careful handling, I don't believe that the head is in any danger of fully detaching. I have little background in prep work, so I would like to ask opinions on: Should anything be done to cement the head down? And a related question: what cementing technique can be used given that the gap is under one mm. I appreciate any thoughts on this.
  18. Traumatocrinus caudex Dittmar, 1866

    From the album Invertebrates

    Traumatocrinus caudex Dittmar, 1866 Late Triassic Early Carnian Guanling Formation (Xiaowa Formation) Guanling Guizhou PRC
  19. Saurichthys curionii Bellotti, 1857

    Monte San Giorgio is now an UNESCO WHL site. Lit.: Beardmore, S.R. & Furrer, H. Swiss J Geosci (2016) 109: 1. https://doi.org/10.1007/s00015-015-0194-z
  20. Keichousaurus hui Young, 1958

    From the album Vertebrates

    Keichousaurus hui Young, 1958 Middle Triassic Zhuganpo Formation Xingyi Guizhou PRC Length 4cm
  21. From the album Vertebrates

    Sinosaurichthys longimedialis Wu et al., 2011 Middle Triassic Anisian Daaozi, Luoxiong Luoping yunnan PRC
  22. Welcome to another microscopic look into the wonderful world of coprolites. Here we have a squished (flattened) spiral coprolite from the prehistoric floodplains that now form the Bull Canyon Formation in the badlands of Quay County, New Mexico. Today's mystery was most likely not ingested. Many times the posterior (non-pinched end) of spiral coprolites can be hollow. I may be wrong, but I think this branchy thing (for lack of a better term) slipped in after it was expelled. To me this looks like part of a branch from a delicate coral - but the poop was in fresh water. Any ideas?
  23. Hypocladiscites subtornatus.jpg

    From the album alpine triassic Ammonoids

    Hypocladiscites subtornatus (MOJS), 10cm diameter, together with Mojsvarites agenor(left side), Joannites sp. and orthocone Atractites sp. Triassic/lower Carnian aonoides zone. Hallstatt limestone of Austria.
  24. Trachysagenites eximius.jpg

    From the album alpine triassic Ammonoids

    Small slab with Trachysagenites cf. eximius MOJS.(Ammonoid with nodes, 2.5cm diameter) Associated with Arcestes sp., Megaphyllites sp., Paratropites sp., "Sandlingites" pilari and Isculites sp. Probably lower Tuvalian Dilleri Zone.
  25. Tuvalian.jpg

    From the album alpine triassic Ammonoids

    This part of a Triassic/Tuvalian ammonoid lense show probably the lower ammonoid zone(Dilleri Zone) of the Upper Carnian/Tuvalian stage. The upper half of the picture show a few Trachysagenites erninceus(ammonoids with stroger nodes) and a Tropites sp. core upon left. The lower part show Spirogmoceras sp., Traskites sp. and Paratropites cf. multecostatus with Isculites heimi(flat variant)