Search the Community
Showing results for tags 'triassic'.
-
Calcitized phragmocone.
-
From the album: Triassic
Diplurus newarki (flattened skull) Upper Triassic Lockatong Formation Newark Supergroup Granton quarry North Bergen, N.J. -
From the album: Triassic
Diplurus newarki (partial coelacanth- body and fins) Upper Triassic Lockatong Formation Newark Supergroup Granton quarry North Bergen, N.J. -
From the album: Fossildude's Late Triassic Lockatong Formation Fossils
Skull of Diplurus newarki coelacanth. Late Triassic, Newark Supergroup, Newark Basin, Lockatong Formation North Bergen, NJ. "Granton Quarry"© 2017 Tim Jones
-
From the album: Fossildude's Late Triassic Lockatong Formation Fossils
Caudal fin of Diplurus newarki coelacanth. Late Triassic, Newark Supergroup, Newark Basin, Lockatong Formation North Bergen, NJ. "Granton Quarry"© 2017 Tim Jones
-
After Earth’s Worst Mass Extinction, Life Rebounded Rapidly
Oxytropidoceras posted a topic in Fossil News
After Earth’s Worst Mass Extinction, Life Rebounded Rapidly, Fossils Suggest, Trilobites, Nichlos ST. Fleur, New york times, Feb. 16, 2017 https://www.nytimes.com/2017/02/16/science/great-dying-permian-extinction-fossils.html New fossil discovery suggests sea life bounced back after the 'Great Dying' faster than thought, PhysOrg, February 16, 2017 https://phys.org/news/2017-02-fossil-discovery-sea-life-great.html The paper is: Brayard, A., Krumenacker, L.J., Botting, J.P., Jenks, J.F., Bylund, K.G., Fara, E., Vennin, E., Olivier, N., Goudemand, N., Saucède, T. and Charbonnier, S., 2017. Unexpected Early Triassic marine ecosystem and the rise of the Modern evolutionary fauna. Science Advances, 3(2), p.e1602159. http://advances.sciencemag.org/content/3/2/e1602159 Yours, Paul H. -
Calcite mold.
-
Calcite mold.
-
Calcite Steinkern.
-
Calcite Steinkern.
-
Dinocephalosaurus gave live birth? http://www.csmonitor.com/Science/2017/0214/Surprise!-This-ancient-reptile-gave-birth-to-live-young-instead-of-laying-eggs
-
Calcite mold.
-
Calcite mold.
-
With preserved shell.
-
From the album: Invertebrates
Palaeodusa longipes Pinna, 1974 Upper Triassic Norian Forni Dolostones Preone Italy Not sure if Palaeodusa or Dusa -
Luoxiongichthys hyperdorsalis Wen et al., 2011
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Luoxiongichthys hyperdorsalis Wen et al., 2011 Middle Triassic Anisian, Pelsonian Guanling Formation Daaozi, Luoxiong Luoping County Yunnan China Lit.: W. Wen, Q. Y. Zhang, C. Y. Zhou, J. Y. Huang, Z. Q. Chen and M. J. Benton. 2012. A new genus of basal actinopterygian fish from the Anisian (Middle Triassic) of Luoping, Yunnan Province, Southwest China. Acta Palaeontologica Polonica 57:149-160 -
Fossils and especially fishes in the Upper Bunter Formation in Germany are quite rare. But occasionally you can find fish gatherings. In the mid '60ties, almost 60 of these Pericentrophorus minimus were found together with nearly 200 of these strange looking Dipteronotus aculeatus (JÖRG, 1969) in a small clay lens, just 10m in diameter and 30cm thick. Diagnosis from Jörg, 1969, p. 94 (translated from german by oilshale): "Body low spindle-shaped, with almost straight dorsum. Dorsal line slightly depressed below dorsalis. Fin position as in genus Acentrophorus TRAQUAIR. Maxillary shortened, but still extending far back under orbit almost to its posterior margin. Teeth pencil-shaped, small, parietalia proportionally long. Opercular apparatus well developed, with narrow, strongly curved and below somewhat anteriorly curved praeoperculum. Caudalis almost symmetrical, weakly indented. Along dorsum runs a row of short, bluntly domed ridge scales, posterior margins concave. Anterior flank scales twice as high as wide. Scaling of upper caudal lobe reduced posteriorly to a single row of scales covering lobe about half its length." Line drawing from Jörg 1969, p. 96: Identified by oilshale using Jörg 1969. References: Jörg, E. (1969) Fischfunde im Oberen Buntsandstein (Untertrias) von Karlsruhe-Durlach. Zeitschrift der Deutschen Geologischen Gesellschaft Band 121 (1969), p. 105 - 110. Jörg, E. (1969): Eine Fischfauna aus dem Oberen Buntsandstein Unter-Trias von Karlsruhe-Durlach Norbaden. Beitraege zur Naturkundlichen Forschung in Suedwestdeutschland, 28: 87-102. Gall, JC.; Grauvogel, L.; Lehman, JP.(1974): Faune du Buntsandstein. 5. Les poissons fossiles de la collection Grauvogel - Gall. Annales Paleont (Vert): 602: 127-168
-
This fish was first described under the name Praesemionotus aculeatus JÖRG, 1969 Taxonomy from Fossilworks.org. Diagnosis for the genus from Tintori 1990, p. 194: "Small high-bodied fish with the dorsal crest made up by ll ridge scales; maximum height of the body (crest excluded) equal to 54% of the s.l.: head length equal to 36% of s.l.; dorsal fin consisting of 22 lepidotrichia, caudal of 26 (at least 6 of which are epaxial) and anal of 15 lepidotrichia; trunk scales with a backward directed spine at the center of their posterior edge." Reconstruction of D. olgiatii TINTORI, 1990 Identified by oilshale using Jörg 1969. References: Jörg, E. (1969) Fischfunde im Oberen Buntsandstein (Untertrias) von Karlsruhe-Durlach. Zeitschrift der Deutschen Geologischen Gesellschaft Band 121 (1969), p. 105 - 110. Jörg, E. (1969): Eine Fischfauna aus dem Oberen Buntsandstein Unter-Trias von Karlsruhe-Durlach Norbaden. Beitraege zur Naturkundlichen Forschung in Suedwestdeutschland, 28: 87-102 Gall, JC.; Grauvogel, L.; Lehman, JP.(1974): Faune du Buntsandstein. 5. Les poissons fossiles de la collection Grauvogel - Gall. Annales Paleont (Vert): 602: 127-168 Tintori, A. (1990): DIPTERONOTUS OLGIATII N. SP. (ACTINOPTERYGII, PERLEIDIFORMES) FROM THE KALKSCHIEFERZONE OF CA' DEL FRATE (N. ITALY) (Preliminary note). Atti. Tic. Sc. Terra, 33 (1990), 191-197,2figg., 1 pl.
-
From the album: Vertebrates
Gymnoichthys inopinatus Tintori et al., 2010 Middle Triassic Anisian Guangling Formation, Daaozi, Luoping, Yunnan PRC Length 10cm / 4" Re-study on Gymnoichthys inopinatus from Middle Triassic of Luoping Yunnan China.pdf A new basal neopterygian from the middle triassic of Luoping gymnoichthys.pdf -
From the album: Vertebrates
Mixosaurus panxianensis Jiang et al., 2006 Middle Triassic Guanling Formation Anisian Panxian Guizhou PRC Length 50cm / 20" Lit.: DA-YONG JIANG, LARS SCHMITZ, WEI-CHENG HAO1,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 -
Here are two plates from Guizhou province. They should be Protrachyceras sp. ammonites from late Triassic. First one: Second front: Second back:
-
From the album: Vertebrates
Habroichthys minimus Brough, 1939 Middle Triassic Ladinian Davos Switzerland -
References: Gorjanović-Kramberger, K. (1905): Die obertriadische Fischfauna von Hallein in Salzburg. Beitr. Paläont. Geol. Österr.-Ungarns u. d. Orients, VIII, pp 193-224, Taf. 17-21
-
Taxonomy from Kogan & Romano 2016. Diagnosis from Kogan & Romano 2016, p. (e1151886-5): "Medium-sized saurichththyid (sensu Tintori, 2013) of at least 60 cm total length (MNHN.F MAE 2524, FG 1/2013, PIMUZ A/I 4144); extensive scale cover with high mid-lateral scales, broad mid-dorsal and mid-ventral scales, and numerous smaller rhombic scales present in dorsolateral and ventrolateral positions; one ventrolateral row of specialized, enlarged scales that are shaped like a tilted ‘L’; all fins with fringing fulcra of Pattern C (sensu Arratia, 2009), and with segmented, distally branched lepidotrichia; operculum long and subtriangular; antoperculum present; one pair of branchiostegal rays; suborbital bone developed; circumorbital series including a well-developed supraorbital, a dermosphenotic, and at least one posterior infraorbital bone; surangular very narrow and anteriorly reaching the level of the center of the orbit; elongate postorbital portion of the cranium, skull (including operculum) measuring about 27% of the total body length." References: Pivetau, J. (1944-45): Paléontologie de Madagascar, XXV. Les poissons du Trias inférieur. La famille des Saurichthyidés. Ann. Paléont., 31: 79-87. Rieppel, O. (1980): Additional specimens of Saurichthys madagascariensis from the Eotrias of Madagascar. N.Jb. Geol. Paläont. Mh., 1980 (1): 43-51. Beltan, L. (1996): Overview of systematics, paleobiology and paleoecology of Triassic fishes of northwestern Madagascar. In: Mesozoic Fishes - Systematics and Paleoecology, 1996, pp. 479-500. ISBN3-923871-90-2. Kogan, I. und Romano, C. (2016): Redescription of Saurichthys madagascariensis Piveteau, 1945 (Actinopterygii, Early Triassic), with implications for the early saurichthyid morphotype. Journal of Vertebrate Paleontology. Vol. 36, Iss. 4, 2016 DOI: 10.1080/02724634.2016.1151886
-
- 1
-
-
- madagascar
- sakamena formation
- (and 2 more)
-
From the album: Vertebrates
Saurichthys madagascariensis Piveteau, 1945 Early Triassic Dienerian Sakamena Formation Anktokazo Madagascar Length 60cm Lit.: Pivetau, J. (1944-45): Paléontologie de Madagascar, XXV. Les poissons du Trias inférieur. La famille des Saurichthyidés. Ann. Paléont., 31: 79-87; Paris Rieppel, O. (1980): Additional specimens of Saurichthys madagascariensis from the Eotrias of Madagascar. N.Jb. Geol. Paläont. Mh., 1980 (1): 43-51; Stuttgart Kogan, I. und Romano, C. (2016): Redescription of Saurichthys madagascariensis Piveteau, 1945 (Actinopterygii, Early Triassic), with implications for the early saurichthyid morphotype. Journal of Vertebrate Paleontology. Vol. 36, Iss. 4, 2016 DOI: 10.1080/02724634.2016.1151886
.thumb.JPG.d64a00de120fb553baacff5149461632.JPG)
