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Showing results for tags 'triassic'.
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From the album: Fossildude's Late Triassic Lockatong Formation Fossils
Another partial coelacanth, Diplurus newarki. Front half of fish including complete skull and first dorsal on bottom, with partial lower skull in the upper right. Late Triassic, Newark Supergroup, Newark Basin, Lockatong Formation, North Bergen, New Jersey. Old Granton Quarry. Scale is in CM.© 2019 T. Jones
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- diplurus newarki
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I happened to be in Gettysburg for the weekend, and I remembered an article I had read a while back. It said something about Dinosaur prints at the Gettysburg battlegrounds. So I took a trip to the location and took a look around, here’s the prints I could see with all the rain: Clearest two, it’s a foot and hand from Atreipus milfordensis.
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Partial Coelacanth from Old Granton Quarry Site, North Bergen, New Jersey
Jeffrey P posted a gallery image in Member Collections
From the album: Triassic
Diplurus newarki (partial coelacanth including most of tail, some vertebrae, and ribs, etc.) Upper Triassic Lockatong Formation Newark Supergroup Old Granton Quarry site North Bergen, New Jersey- 2 comments
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Zhao et al. and A. Tintori disagree whether this is a Thoracopteridae (a "flying fish") or a Peltopleuridae. References: G. H. Xu, L. J. Zhao, and C. C. Shen. 2015. A Middle Triassic thoracopterid from China highlights the evolutionary origin of overwater gliding in early ray-finned fishes. Biology Letters 11:2014960. A. Tintori. 2015. Setting the record straight for fossil flying fishes versus non-flying ones: a comment on Xu et al . (2015). Biology letters 11(11) DOI:10.1098/rsbl.2015.0179. Xu G-H, Zhao L-J. 2015. From Potanichthys to Wushaichthys: resolving the evolutionary origin and reproductive strategy of the Thoracopteridae: a reply to Tintori (2015). Biol. Lett. 11: 20150604. http://dx.doi.org/10.1098/rsbl.2015.0604. Chenchen Shen (2019). Redescription of Wushaichthys exquisitus and phylogenetic revision of Thoracopteridae. Master thesis B.S. Capital Normal University
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- falang formation
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Mixosaurus panxianensis JIANG, SCHMITZ, HAO & SUN, 2006
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Mixosaurus panxianensis JIANG, SCHMITZ, HAO & SUN, 2006 Upper Member, Guanling Formation Middle Triassic Panxian Guizhou Will need some additional prep work, but seems to be fine. Btw. no legal problem for me - I live in Shanghai. Lit.: DA-YONG JIANG, LARS SCHMITZ, WEI-CHENG HAO, and YUAN-LIN SUN(2006): A NEW MIXOSAURID ICHTHYOSAUR FROM THE MIDDLE TRIASSIC OF CHINA. Journal of Vertebrate Paleontology 26(1):60–69, March 2006 -
The Prosanto Fm. is a (Furrer et al. 1985) " Small lagoonal basin [pool] in the intertidal platform of the Vallatscha Fm. with anoxic bottom waters. Agitated surface waters deposit tempestite layers as well as mud, which forms very regular drapes." Taxonomy from Bürgin 2004. Diagnosis (Bürgin 2004, p, 242): "A fusiform species of the genus tEosemionotus with a broad gill-cover, being one and a half times deeper than wide. Supratemporal commissure not continuous. Fringing fulcra on dorsal and anal fin minute. Twenty-seven or 28 vertical scale rows and 12-14 single scales in the row in front of dorsal fin. Flank scales moderately deepened and with a smooth posterior margin." Line drawing from Bürgin 2004, p. 246: Identified by oilshale using Bürgin 2004. References: T. Buergin et al. (1991) The Prosanto Formation - a middle Triassic fossil Lagerstatte of the Silvretta Nappe (Graubünden Canton, Switzerland) with a rich ichthyofauna. Eclogae Geologicae Helvetiae 84(3):921-990. Bürgin, T. (2004) Eosemionotus ceresiensis sp. nov., a new semionotiform fish (Actinopterygii, Halecostomi) from the Middle Triassic of Monte San Giorgio (Southern Switzerland). In: Mesozoic Fishes 3 - Systematics, Paleoenvironments and Biodiversity, G. Arratia & A. Tintori (eds.): pp. 239-251, 10 figs. ©2004 by Verlag Dr. Friedrich Pfeil, München Germany - ISBN 3-89967-053—8. López-Arbarello, A., Bürgin, T., Furrer, H., and Stockar, R. (2019) Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe. Palaeontologia Electronica 22.1.10A 1-64. https://doi.org/ 10.26879/904 palaeo-electronica.org/content/2019/2383-systematics-of-eosemionotus
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References: SCHWEITZER, C., FELDMANN, R.,HU, S.,HUANG, J., ZHOU, C., ZHANG, Q.,WEN, W., Xie, T.(2014): PENAEOID DECAPODA (DENDROBRANCHIATA) FROM THE LUOPING BIOTA (MIDDLE TRIASSIC) OF CHINA: SYSTEMATICS AND TAPHONOMIC FRAMEWORK. Journal of Paleontology, 88(3), 2014, p. 457–474. Quote: "Although the lobsters were interpreted as having relatively durable cuticle, the shrimp discussed herein are characterized by having very thin cuticle that is readily deformed and oriented in a variety of positions. As a result, the description and interpretation of the morphology of the shrimp is, of necessity, a composite of several specimens; however, fine detail of many parts of the skeletal anatomy is exquisite."
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From the album: Vertebrates
Ecrinesomus dixoni Woodward, 1910 Early Triassic Dienerian Iraro Madagascar Length 16cm -
From the album: Sharks and fish
Hybodus Houtienensis shark spine Permian to Cretaceous shark (impressive!!!!!) beautiful serration teeth down the back. -
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From the album: Fossildude's Late Triassic Lockatong Formation Fossils
Another partial Diplurus newarki, Upper Triassic Lockatong Formation, North Bergen, NJ.© © 2014 Tim Jones
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Consolidation of My Jurassic Park Collection that has been posted. Can also provide a good reference source Jurassic: Allosaurus Morrison Formation: Sauropods Morrison Formation Cretaceous: Cloverly Formation & Deinonychus Two Medicine Formation Judith River Formation Hell Creek/Lance Tyrannosaurs Hell Creek/Lance: Edmontosaurus Hell Creek: Oviraptorids Hell Creek: Pachycephalosaurid Domes Hell Creek: Alvarezsaurids This one more how to ID Hell Creek/Lance: Ankylosaurid Hell Creek/Lance: Troodontids Hell Creek/Lance: Ornithomimids Hell Creek/Lance: Large Bodied Ceratopsian Hell Creek: Leptoceratops Hell Creek/Lance: Birds, Pterosaur & Unknown Hell Creek: Injured or Diseased Bones United States - Texas/ Other States Hell Creek: Turtle Skulls, Mammal & more MicroTeeth - Texas Bones - Kem Kem & Canada Europe Morocco - Kem Kem Beds Morocco - Kem Kem Claws Uzbekistan Thailand
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From the album: Vertebrates
Fish non det. Middle Triassic Xingyi Guizhou China -
From the album: Invertebrates
Sea urchin non det. Middle Triassic Crailsheim Germany Diameter 7cm- 1 comment
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From the album: alpine triassic Ammonoids
Hashplate of Ladinian age. The two smooth shelled ammonoids are inner cores of Gymnites cf. arthaberi(size= 3cm). The ammonoid top left is a Arpadites sp. A fragment of Protrachyceras cf. archelaus (darker brown spiny shell part down right) is evidence for Ladinian/Longobardian time(archelaus zone). -
From the album: Vertebrates
Eosemionotus sp. Prosanto Formation Middle Triassic Davos Switzerland -
From the album: Vertebrates
Icarealcyon malagasium Beltan, 1984 Early Triassic Dienerian Sakamena Formation Ambilobe Madagascar -
Piveteauia madagascariensis Lehman 1952 - a coelacanth
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Piveteauia madagascariensis Lehman 1952 Early Triassic Dienerian Sakamena Formation Ambilobe Madagascar J.-P. Lehman. 1952. Etude complémentaire des poissons de l'Eotrias de Madagascar. Kungliga Svenska Vetenskapsakademiens Handlingar 2:1-201 -
References: F. Wu, Y. Sun, G. Xu, W. Hao, D. Jiang and Z. Sun (2011) New Saurichthyid Actinopterygian Fishes from the Anisian (Middle Triassic) of Southwestern China. Acta Palaeontologica Polonica 56(3):581-614
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From the album: Vertebrates
Icarealcyon malagasium Beltan, 1984 Early Triassic Dienerian Sakamena Formation Ambilobe Madagascar Due to its enormous pectoral fins, Icarealcyon malagasium was described by Beltan as a "poisson volant" - a "flying fish" - in the family Semonotidae (not related to what is now known as "flying fish" - these are Exocoetidae in the order Beloniformes). You would expect flying fish to be fast swimmers - the rather thickset appearance of Icarealcyon more likely hints to slow swimmers with relatively high maneuverability (comparable to Albertonia from British Columbia). -
From the album: Vertebrates
Nothosaurus youngi LI & RIEPPEL, 2004 Middle Triassic Fuyan Yunnan China-
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This species is also known under the name T. hsui. The discussion about whether this is T. hsui or T. caudex seems to be still going on. Diagnosis from Hagdorn et al. 2015, p. 16: "Cup cryptodicyclic with five infrabasals and five basals; basals almost completely concealed in column pit; radials with low trapezoidal exposed aboral side and outward inclined facet with strings of granules separated by grooves (fossulae); radial articular facet and all brachial articulations ligamentary (granosyzygial). Primibrachial 2 axillary, secundibrachial 2 axillary in juveniles, in adults second arm branching after indefinite number of irregularly biserial secundibrachials. In juveniles four isotomously branching arms which constitute the 20 major arms of adults. In adults, indefinite number of endotomously branching tertiary armlets; arm branching starting at outer arms of each ray. Armlets may branch again at distal axillaries with aboral inflation or spine. Arms biserial. Brachial articulations granosyzygial with strings of granules separated by fossulae opening at equidistant circular pores along aboral sutures. Arms pinnulate after second branching. First pinnular shorter than second, with muscular articulation to brachial. Proximal and medial pinnulars with serrated margins, distal pinnulars with blade-shaped spines. Tegmen with polygonal plates, anal tube short with polygonal, aborally inflated plates around anal opening. Functional cup enlarged by means of tegminal plates extending between proximal arms, forming polygonal interbrachials and five large rhomboidal interradials inserting between interradial sutures. Interradials already present in juveniles of less than 10 mm crown height. No mouth visible; small perforated tegminal platelets at the base of free arms. Column long to very long, proximally with distinct nodals, noditaxes with up to four series of internodals. Nodals without cirri. Columnals low, circular to elliptical, granosyzygial, with multiradiate rows of granules that may be arranged as sets of chevrons; number of granule rows increasing toward the margin by bifurcation and intercalation. Intercolumnal grooves (fossulae) between granule rows with equidistant circular pore openings leading to sets of channels (tubuli) running through proximal and medial column; set of five primary tubuli surrounding lumen of central canal. Terminal column with extremely low columnals with articulated anastomosing radicular cirri, articulate facets of cirrals multiradiate." Identified by oilshale. References: Xiaofeng, W., Hagdorn, H. & Chuanshang, W. (2006 09 12) Pseudoplanktonic lifestyle of the Triassic crinoid Traumatocrinus from Southwest China. Lethaia , Vol. 39, pp. 187-193. Oslo. ISSN 0024-1164. Wang et al,. (2003) Restudy of the crinoids Traumatocrinus of the Guanling biota Guizhou. Geological Bulletin of China Vol. 22 No. 4, p. 248-253. Hagdorn, Hans; Wang, Xiao-Feng (2015). The pseudoplanktonic crinoid Traumatocrinus from the Late Triassic of Southwest China — Morphology, ontogeny, and taphonomy. Palaeoworld, (), S1871174X15000414–. doi:10.1016/j.palwor.2015.05.006
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From the album: Unusual Shark Teeth
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From the album: Dinosaurs and Reptiles
Partial skeleton of a Middle Triassic marine reptile Anarosaurus (relative of Keichousaurus) from Muschelkalk, Germany. B, C, F, G, H - close-ups of various limb bones and vertebrae D - 2 Anarosaurus teeth E - fish scale I - Nothosaurus mirabilis (?) tooth The last two finds make me think that it is actually a Nothosaurus coprolite with digested Anarosaurus remains and various fish scales. -
From the album: Vertebrates
Saurichthys madagascariensis Piveteau, 1945 Early Trassic Dienerian Ambilobe Madagascar Length 40cm / 16" -
From the album: Invertebrates
Ammonites Late Triassic Carnian Xiaowa Formation Yunnan PRC
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