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Showing results for tags 'triassic'.
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From the album: fossil wood
an unusual brown, 80 cm wood from the famous petrified forest, coming from an old collection. Rare brown color -
From the album: fossil wood
an incredible, 60 cm wood from the famous petrified forest, coming from an old collection -
Hi there. I have this Triassic tooth from the Bull Canyon formation sold to me a good few years back as belonging to Coelophysis. I'd tentatively labeled it cf.Coelophysis (due to the locality) but now that I'm going through and re-evaluating everything I'm not sure it is an accurate description considering the curvature (though I'm not knowledgeable on ontogenic variation in this genus). I'm aware of a great thread posted by Troodon about this particular area but I'd like some input on the possibility it could belong to other Archosaurian taxa. My knowledge of this area is minimal so I'd appreciate any help. I counted about 26 denticles/5mm on both carinae.
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Trackway paper presented
RetiredLawyer posted a topic in Partners in Paleontology - Member Contributions to Science
Hope this isn’t inappropriate for this forum. For everyone who was following my excavations, Dr Klein presented his findings. Dr Lucas is coming back later this year to pick up a few more tons of my tracks.
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Are these fossils? And if so, what of? Found under Seacliff Bridge in New South Wales
spagbutcher posted a topic in Fossil ID
Hi everyone! I'm new to fossil hunting and I found a few interesting rocks underneath Sea Cliff Bridge near Wollongong in Australia. There was a lot of coal in the area for context. I will attach some photos of the rocks I found, I'm particularly interested in the small white (quartz??) lines intersecting the black part of the stone. Any help would be hugely appreciated! Thanks
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Here is a tail of a marine reptile from the Triassic period. It was found at Fuyuan, Yunnan Province of China, at the same strata with Keichosaurus. Does it look like the tail of Yungguisaurus liae or Placodus inexpectatus? It is 56cm in length.
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Selling Real for Fake Fossils?
Lucid_Bot posted a topic in Is It Real? How to Recognize Fossil Fabrications
Everyone I've encountered on this site has been very helpful, so thank you. However, I'm in need of more help. For the last year I've been collecting real fossils in the field and selling some to pay for more exotic rocks. In a recent post I found that my Solnhofen shrimp is, if not totally, mostly fake. Now I'm quite suspicious of my entire purchased collection and was hoping you could help me identify fakes. The first two pictures are apparently Priscacara, Green River Formation, Eocene; the next two supposedly Asteroidea, Morocco, Ordovician; the last three supposedly Triassic, Arizona petrified wood--this came from the same group that sold me the fake shrimp. All help is appreciated.
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- arizona
- asteroidea
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Hurum, J.H., Bergan, M., Muller, R., Nystuen, J.P. and Kleina, N., 2006. A Late Triassic dinosaur bone, offshore Norway. Norsk Geologisk Tidsskrift, 86(2), p.117. The above paper is cited by: Marzola, M., Mateus, O., Milan, J. and Clemmensen, L.B., 2018. A review of Palaeozoic and Mesozoic tetrapods from Greenland. Bulletin of the Geological Society of Denmark, 66, pp.21-46. and Kear, B.P., Lindgren, J., Hurum, J.H., Milàn, J. and Vajda, V., 2016. An introduction to the Mesozoic biotas of Scandinavia and its Arctic territories. Geological Society, London, Special Publications, 434(1), pp.1-14. Yours, Paul H.
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- dinosaurs
- lunde formation
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- mastodonsaurus
- temnospondyl
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'Fish lizard' fossils found in Swiss Alps belonged to some of the largest creatures that ever lived By Ashley Strickland, CNN, April 28, 2022 The open access paper is: P. Martin Sander, Pablo Romero Pérez de Villar, Heinz Furrer & Tanja Wintrich, 2022, Giant Late Triassic ichthyosaurs from the Kössen Formation of the Swiss Alps and their paleobiological implications. Journal of Vertebrate Paleontology. Published online: 27 Apr 2022, Article: e2046017 Yours, Paul H.
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- austroalpine nappes
- ichthyosaurs
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Discovery of world's first fossilised squid cartilage (Polzberg biota, Triassic of Austria)
FranzBernhard posted a topic in Fossil News
Discovery of world's first fossilised squid cartilage (Polzberg biota, Triassic of Austria) (press release) Mineralized belemnoid cephalic cartilage from the late Triassic Polzberg Konservat-Lagerstätte (Austria) (paper) Franz Bernhard -
This fish is from china yunnan and the size is about 7cm.I dont know what species is this(By the way the pink color is due to calcitic mineralized) Thanks~
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- china yunnan
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Been searching my upper level recently- Shinarump Formation, late Triassic. Finding some decent bone pieces. Most likely amphibian, particularly Metoposaurus.
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Spiny bivalve from Upper Triassic limestone at Aust Cliff, Gloucestershire, UK
Georyx posted a topic in Fossil ID
Hi everyone, First time posting here so please forgive any dodgy formatting. I found this bivalve shell in the Upper Triassic limestone beds at Aust Cliff, Gloucestershire, UK. I posted this on Reddit and only one person managed to have a guess at a Ctenostreon bivalve genus, but they are not sure. The spines on the edge of the shell seem a bit too evenly-spaced out in my opinion. (By the way, the grooves surrounding the shell are from where I've engraved the fossil a little. I don't have the equipment to fully extract it, so I have no idea what the outside of the shell looks like). Thanks all - any help would be appreciated. - Georyx
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Taxonomy from Garassino & Teruzzi 1995. Diagnosis from Garassino & Teruzzi 1995, p. 92: "Subrectangular carapace; long rostrum, lacking both suprarostral and subrostral teeth; marked dorsal hump at the base of the rostrum; spine in the posterior third of the dorsal midline of the carapace; deep hepatic groove and weak branchiocardiac groove; gastro-orbital, hepatic and branchiocardiac spines present; pereiopods I-III chelate; strongly elongate pereiopod III; tergite VI rectangular; triangular telson with a pointed distal extremity." Line drawing from Garassino & Teruzzi 1995, p. 94: References: Van Straelen V. (1933) Antrimpos madagascariensis Crustace decapode du Permotrias de Madagascar. Bull. Mus. Roy. hist. Nat. Belgique, Bruxelles, IX(1). Garassino A. & Teruzzi G., (1995) Studies on Permo-Trias of Madagascar, 3. The decapod crustaceans of the Ambilobe region (NW Madagascar). Atti. Soc. it. Sci. nat. Museo civ. Stor. nat. Milano, Milano, 134 (1): 85-113.
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Anyone have any Southeastern PA triassic track site localities
A.C. posted a topic in Questions & Answers
Hey all, I am really interested in finding some of the southeastern PA track fossils. I realize it is a huge stretch to ask for a locality but figure it is worth a shot to see if anyone wants to share information over PMs regarding locations or other useful information on this area. Thanks in advance! -
The Redonda Formation of New Mexico - Personal Finds
Crowmagnon posted a topic in Member Collections
I have collected quite a few interesting fossils from the Redonda formation, and I will be posting to this thread as I take photos. Two very large vertebrae to start- likely belonging to the Phytosaur Redondasaurus.
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- new mexico
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Triassic Redonda Formation of New Mexico- Possible Theropod teeth?
Crowmagnon posted a topic in Fossil ID
I have gone through all of my Redonda formation teeth, and think these ones are likely theropod, possible Coelophysis. Any insight would be greatly appreciated! Tooth 1: 7mm long, serrations ~8/mm along middle of posterior edge.
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- new mexico
- redonda formation
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Going through some rocks collected in one of the triassic basins of the Newark supergroup in Virginia, and this popped out. Length is 5/8 inch, width is 1/8 inch. It looks toothy to me… any ideas?
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- mesozoic basin
- triassic
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Ichthyosaur fossil found in Nevada named for brewery founder
Oxytropidoceras posted a topic in Fossil News
Ichthyosaur fossil found in Nevada named for brewery founder Jim Krajewski, Reno Gazette Journal, Jan. 11, 2022 Central Nevada ichthyosaur fossil reveals surprising information KOLO, Channel 8, Nevada, Dec. 25, 2021 Papers are: Delsett, L.L. and Pyenson, N.D., 2021. Early and fast rise of Mesozoic ocean giants. Science, 374(6575), pp.1554-1555. Sander, P.M., Griebeler, E.M., Klein, N., Juarbe, J.V., Wintrich, T., Revell, L.J. and Schmitz, L., 2021. Early giant reveals faster evolution of large body size in ichthyosaurs than in cetaceans. Science, 374(6575), no. eabf5787. Related paper is: Kelley, N.P., Motani, R., Embree, P. and Orchard, M.J., 2016. A new Lower Triassic ichthyopterygian assemblage from Fossil Hill, Nevada. PeerJ, 4, p.e1626. Peer j. web page with link to PDF Yours, Paul H.-
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- cymbospondylus
- cymbospondylus youngorum
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Hi y'all, found this partial tooth in micromatrix from the Triassic-aged Bull Canyon formation. Serration density looks to be 9-10 / mm on the dc. Could it be dinosaurian?
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- bull canyon
- bull canyon formation
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Apical side. Taxonomy from fossilworks.org. Diagnosis for the family Serpianotiaridae from Hagdorn 1995, p. 258 (translated from german by oilshale): "Overmedium sized sea urchins with moderately flexible shell. Apical system monocyclic. Ambulacrum narrow, simple above the ambitus, primitively diadematoid below the ambitus, adorally occluded plates; pore pairs uniserial, adorally biserial. Interambulacrum overlapping the ambulacrum, adorally relatively tightly jointed. Primary tubercle crenulate, perforate; adorally rows of large secondary tubercles. Perignathic girdle with promunturium. Lantern cidarid. Primary spines awl-shaped, without cortex; scrobicular spines spatulate." Line drawing from Hagdorn 1995, p. 261: Identified by Dr. H. Hagdorn (Muschelkalkmuseum Ingelfingen). References: Jeannet, A. (1933) Die Triasfauna der Tessiner Kalkalpen, VI: Note sur un Miocidaris nouveau. Abhandlungen der Schweizerischen Palaeontologischen Gesellschaf 53, 1-7, pl. 30. Kier, P.M. (1977) Triassic echinoids. Smithsonian Contributions to Paleobiology 30, 1-88. Hagdorn, H. (1995) Die Seeigel des germanischen oberen Muschelkalks. Geologische und Palaontologische Mitteilungen, Innsbruck. 20, 245-281. Kroh, A. and Smith, A. B. (2010) The phylogeny and classification of post-Palaeozoic echinoids. Journal of Systematic Palaeontology 8(2):147-212.
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- anisian
- crailsheim
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From the album: Vertebrates
Not an Ichthyosaur but an unprepped Thalattosaurus (Xinpusaurus sp.) from the Falang Formation (Triassic) of Guiyang, in Guizhou, PRC. Xinpusaurus can be easily distinguished from an ichthyosaur like Mixosaurus by the extreme overbite: The upper jaw is almost twice as long as the lower jaw. Will need a lot of prep work. Length ~ 60cm -
Picture number 3 shows a close up of the scales. Taxonomy according to Yabumoto & Brito, 2016. Yabumoto & Brito 2016, p. 234: "The locality and horizon of the type specimens are not precisely known. Available information is that the locality lies in the area of Noe Bihati, West Timor, Indonesia." Diagnosis in Yabumoto & Brito 2016, p 234: "Whiteia with the following combination of characters: with five to ten sparse long ridges on scales, nine rays (seven anterior long and two posterior short) on the first dorsal fin, pointed denticles on the anterior fin rays of the first dorsal fin, operculum with many tubercles, postparietal with many pits and short radial grooves, angular with radial grooves and other bones of the head smooth, without tubercles." Line drawing of the holotype by Yabumoto & Brito, p. 235: A.b = basal plate of anal fin; D1.b = basal plate of first dorsal fin; D2.b = basal plate of second dorsal fin; L = lung; P.b = pelvic bone. Identified by oilshale using Yabumoto & Brito, 2016. Reference: YABUMOTO, YOSHITAKA AND BRITO, PAULO M. (2016) A new Triassic coelacanth, Whiteia oishii (Sarcopterygii, Actinistia) from West Timor, Indonesia. Paleontological Research, vol. 20, no. 3, pp. 233–246.
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- coelacanth
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