DOCSLIB.ORG

THE LADINIAN AMMONOIDS from CALCARE DI ESINO of Val PARINA (BERGAMASC ALPS, NORTHERN Rtaly)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
THE LADINIAN AMMONOIDS from CALCARE DI ESINO of Val PARINA (BERGAMASC ALPS, NORTHERN Rtaly) Riv. It. Paleont. Strat. v. 100 n.z pp.227-284 tav. 1 t2 Ottobre 1994 THE LADINIAN AMMONOIDS FROM CALCARE DI ESINO OF vAL PARINA (BERGAMASC ALPS, NORTHERN rTALy). pT. 1 NERINA FANTINI SESTIM Key-uords: Taxonomy, Biochronology, Ladinian, Calcare di Esino, \festern-Southern Alps, Italy. Riassunto. In questa Pt.1 sono illustrati gli Ammonoidea ladinici provenienti da lenti di Calcare di Esino affioranti sul versante settentrionale della Val Parina, di fronte alla Val di Lavaggio. Tutto il materiale, raccolto da M. Gervasutti, è stato donato al Museo Civico di Scienze Naturali "E. Caffì" di Bergamo, dove ora è depositato. Sono state identificate complessivamente oltre 60 specie, delle quali una ventina nuove. Sono presenti anche tre generi nuovi: Paàndid della fam. Ceratitidae, Rossiceras della fam. Hungaritidae e Geruasuttia della fam. Aplococeratidae. Gli strati fossiliferi si estendono da 550 m a 850 m s.l. m. In questo intervallo sono state distinte dal bxso verso l'alto 5 associazioni: 7) a Aieseiceras perticóense con Norites, Gevanites, Ibrites, Epigymnites, Aplococras, Proarcestes, Prockdiscites, Eoprotracbyceras, Monophyllites; 2) a Eoprotracbycuas recuba- 'àense con Noàtes, (Jtieseiceras, Gnaniks, Stuàa, Epigynnites, Aplococeras, Eoprotachyceras, Monopbyllites; 3) a Prorracbyceras margatitosum con lb€rites, Epigymnites, Gmasattia, Argolites, Monopbyllites; 4) a Geruasuttit, Arpadites, Protracbyceras, Monophyllìtes; 5) a Protrachyceras longobardium con Sageceras, Iberites, Rossicras, Sturia, Epigymnites, Praepinacoceras, Proarcestes, Pro*acbyceras, Detoniceras, Arpaditu, Argolites, Monopbyllites. Le associazioni 1) e 2) possono essere attribuite alla Zona a Curionii, 3) e 4) alla Zona a Gredleri e infine l'associazione 5) alla base della Zonz ad Archelaus. Abstact. This paper deals with the description of a rich ammonoid assemblage collected in calcareous lenses outcropping within the Ladinian Calcare di Esino of Val Parina (Northern ltaly). The faunas come from lenses outcropping on the northern slope opposite of Val di Lavaggio. The Material was collected by M. Gervasutti and is stored in the Museo Civico di Scienze Naturali "E. Caffi" in Bergamo (haly). More than 60 species were identified, including about twenty new species and three new genera: Painaia (fam. Ceratitidae), Rossiceras (fam. Hungaritidae) and Geruas*ttia (fam. Aplococeratidae). The new taxa give a substantial contribution to the knowledge of the poorly studied Tethyan faunas of the Ladinian. 'Sfhether these faunas are endemic or not is at present difficult to determine. The fossiliferous levels extend from 550 m to 850 m altitude. In this interval 5 assemblages were recognized (from bottom to top): 1) Assemblage with Cbieseictas p*ticaense, Notites, Gnanites, Ibaites, Epigymnites, Aplococeras, Proarcestes, Pro- cladiscites, Eopronacbycuas, Monopbyllites; 2) Assemblage wirh Eoprotachyceras recubaiense, Notàtes, C}ieseiceras, Gevanites, Srurìa, Epigymnites, Aplococeras, Eoprotrachyceras, Monopbyllites;3) Assemblage with Protrachycuas margaàtosum, Ibeites, Epigymnites, Gereasuttia, Argolites, Monophyllita; 4) Assemblage with Gmasutti4 Arpadites, Protacbyceras, Monopbylktes; 5) Assemblage with Protracbyceras hngobardium, %geceras, Ihrìtes, Rosiceras, Stuia, Epigymnites, Praepinacoceras, Proarcestes, Protrachyceras, Detoniceras, Ar- - Dipartimento di Scienze della Terra dell' Università degli Studi di Milano, via Mangiagalli 34, 20733 Milano. Italv. 228 N. Fantini Sestíni padites, Argolìtes, Monopbyllites. The assemblages 1) and 2) can be ascribed to the Curionii Zone; assemblages 3) and 4) to the Gredleri Zone, and assemblage 5) to the lower parr of the Archelaus Zone. Foreword. This paper deals with the description and illustration of Ladinian ammonoids from limestone lenses of the Calcare di Esino (Esino Limestone) outcropping on rhe northern slope of Val Parina (Parina Valley), north of Bergamo (Northern Italy; Fig. 1) at the confluence with Val di Lavaggio (Lavaggio Valley, located on the opposite side; Fig. 2). A minor set of ammonoid bearing limestone lenses with a less diversified faunas, outcropping within the Calcare di Esino slightly eastward, will be object of a second paper actually in preparation, along with the few species collected from the southern side of Val Parina. A1l the fossil material was collected, and successively prepared by M. Gervasutti, who did a very skilful work. The collection has been donated by M.Gervasutti to the Museo Civico di Scienze Naturali "E. Caffi", Ber- gamo (Paganoni, 1985), where all the specimens are stored. Fossiliferous localities, The portion of Val Parina stretching from the village of Zorzone to the junction with the Val Brembana is entirely cut through the Calcare di Esino, made of grey limestones and unconformably overlain by the Calcare Rosso. \lithin the complex internal structure of the Esino carbonate platform Jadoui (in Jadoul, Gervasutti & Fantini Sestini, 1992) ídentified six different lithozones. Fossiliferous Iayers are located at the transition between lithozones 3 and 4, as well as in the lower portion of the lithozone 4 in proximiry of the southern margin of the Esino platform in Val Parina. Bioclastic lenses, 10 to 100 cm thick, yielded thousands of specimens belonging to ammonoids, nautiioids, gastropods, bivalves, brachiopods, corals, echinoderms, cal- careous algae, and vertebrates in variable abundance from place to place (|adoul, Ger- vasutti & Fantini Sestini, 1992, tab. 1). All fossils are included in pockets and lenses of bioclastic rudites outcropping on the mountain slope, between the river bed at about 500 m altitude and at 850 m altitude. Stratigraphically this fossiliferous band can be placed between about 200-350 m from the base and 550 m from the top of the Calcare di Esino. Being beds only gently dipping toward S\il, altitudes give also the approxi- mate thicknesses. The ammonoids are generaily well preserved, with tests totally re- placed by calcite. Internal moulds are less frequent. From a sedimentological view- point the locally high density of fossils with moderate sorting and the lenticular geometry of the bioclastic pockets suggest accumulation mechanisms, driven storm-in- duced bottom currents. This feature prevents the reconstruction of a detailed biostrati- graphic succession. However, the single lenses do not display any evidence of conden- sation. Nevertheless, the abundance of the specimens, the occurrence of several new taxa, aîd the excellent preservation made worthy the study of this fossil collection. Laà.inian ammonoids from C-alcare di Esino 229 è{ N 7. d É é é I 7 t1 o R. Val Parina Lamerata C. Zorzone B CR = Calcare Rosso ts CE = Esino Limestone (Lithozones are É indicated by numbers) FB = Buchestein Fm. z z CP = Prezzo Limestone CA = Angolo ,fi a a Breccias, megabreccias ìe+ Unconformity, breccias over unconformity D Fossiliferous layer with ammonoids Fig. 1 - A) Location map of Val Parina with studied area detailed in Fig. 2. B) Stratigraphic cross section of the Middle Triassic succession in Val Parina. 230 N. Fantini Sestini CORNA BiANCA / \-//- --------"--'/ \ vorl \!-/,- ffi P-lr o\/ Fig. 2 - Geographic setring of studied fossiliferous outcrops on the northern slope of Val Parina. The fossiliferous lenses were numbered, but not in succession, by M. Gervasutti during the field work. They can be grouped into two distinct sets, A and B, located respectively eastward and westward of Val di Lavaggio. The number of the identified specimens from each lens is reported in brackets. Group A: lenses located on the northern slope of Val Parina (Fig. z), between the bottom of the valley and 775 m altitude, eastward of Val di Lavaggio. 5754 - Fossiliferous lenses located at the edge of the gully, eastward of the end of the old railroad at 555,/565m eltrtude. Noites dienui Arthaber (1) (ùieseicnas perticaenseBrack Ec Rieber (78) Ch. aff . pempbix (Merian) (2) Aieseiceras sp. n. A (2) Epigymnites oe dneà (Mojsisovics) (6) E. moelleri (Moisisovics) (3) E. zîî. paronae (Longhi) (2) Aphcoceras oroliqrm sp. n. (Z) Eoprotracbyceras riekri sp. n. (1) Monophyllites uengensìs (Klipstein) (1) 5759 - Debris of 5754. (ùiesricsas sp. n. C (1) 5992 A-G - Fossiliferous lenses scattered between 5944 (600 m altitude) and 5754 (565 m altitude). A Iberites sp. ind. (1) Eoprotrachycoa.s sp. ind. (4) Ladinian arnrnonoids from Calcare di Esino 25l Monopbyllites zoengensis (Klipsrein) (a) B Epigymnites eedneri (Mojsisovics) (3) C Proarcestes pannonius (Mojsisovics) (7) E Geaanites sp. ind. (1) F dtieseicuas perticaemse Brack & Rieber (1) Epigymnites ctedneà (Mojsisovics) (1) G Epigymnites ctedne^à (Mojsisovics) (5) 5944 E,F,H - Fossiliferous lenses scattered in the lower portion of a gully, opposite of Val di Lavaggio, at 600-650 m altitude. E Epigymnites sedneri (Mojsisovics) (1) Aplococeras orolium sp.n. (3) Monopbyllitu zoengensis (Klipstein) (3) F Norites dieneri Arthaber (7) Cl:ieseiteras perticaenseBrack tr Rieber (1) Aplococeras orolicam sp. n. (35) Proarcestes pannozlzs (Mojsisovics)(26) Eoprotracbycuas àeberi sp. n. (2) Monopbyllites zoengensis (Klipstein) (1a) H 50 m above S944F. Proarcestes cf , marcbeanus (Mojsisovics) (2) Monophyllites uengensis (Klipstein) (2) 5993 A-E - Outcrops located on the ridge, westward of 5992, berween 695 m (A) and.775 m (E) altitude. A Cltiesàceras perticaense Brack & Rieber (9) Epigymnites c'redneà (Mojsisovics) (1) E. moelhri (Mojsisovics) (8) E. afÍ. paronae (Longhi) (t) B Aieseiceras prticamse Brtck Ec Rieber (4) C Epìgymnites moellei
Load more

Recommended publications
  • Schmitz, M. D. 2000. Appendix 2: Radioisotopic Ages Used In
    Appendix 2 Radioisotopic ages used in GTS2020 M.D. SCHMITZ 1285 1286 Appendix 2 GTS GTS Sample Locality Lat-Long Lithostratigraphy Age 6 2s 6 2s Age Type 2020 2012 (Ma) analytical total ID ID Period Epoch Age Quaternary À not compiled Neogene À not compiled Pliocene Miocene Paleogene Oligocene Chattian Pg36 biotite-rich layer; PAC- Pieve d’Accinelli section, 43 35040.41vN, Scaglia Cinerea Fm, 42.3 m above base of 26.57 0.02 0.04 206Pb/238U B2 northeastern Apennines, Italy 12 29034.16vE section Rupelian Pg35 Pg20 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 145.8 m above base 31.41 0.03 0.04 206Pb/238U 145.8, equivalent to GSSP), northeastern Apennines, Italy 12 28003.83vE of section MCA/84-3 Pg34 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 142.8 m above base 31.72 0.02 0.04 206Pb/238U 142.8 GSSP), northeastern Apennines, Italy 12 28003.83vE of section Eocene Priabonian Pg33 Pg19 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 14.7 m above base of 34.50 0.04 0.05 206Pb/238U 14.7, equivalent to Ancona, northeastern Apennines, 13.6011 E section MAS/86-14.7 Italy Pg32 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.9 m above base of 34.68 0.04 0.06 206Pb/238U 12.9 Ancona, northeastern Apennines, 13.6011 E section Italy Pg31 Pg18 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.7 m above base of 34.72 0.02 0.04 206Pb/238U
    [Show full text]
  • Die Stratigraphie Der Alpin-Mediterranen Trias the Stratigraphy of the Alpine-Mediterranean Triassic
    Osterreichische Akademie der Wissenschaften Schriftenreihe der Erdwissenschaftlichen Kommissionen Band 2 Die Stratigraphie der alpin-mediterranen Trias The Stratigraphy of the Alpine-Mediterranean Triassic Symposium Wien, Mai 1973 Schriftleitung o. Prof. Dr. Helmuth Zapfe Springer-Verlag Wien New York Vorwort Vom 21.-23. Mai 1973 fand in Wien im Rahmen des „International Geological Correlation Programme" (IGCP) ein Symposium. über die Stratigraphie der alpin­ mediterranen Trias statt. Die Finanzierung dieser Tagung erfolgte durch das IGCP, das Bundesministerium. für Wissenschaft und Forschung sowie die Österreichische Alm­ demie der Wissenschaften. Die Österreichische Akademie der Wissenschaften ermöglichte vor allem die Herausgabe dieses Bandes. Allen diesen Institutionen sei an dieser Stelle der geziemende Dank ausgesprochen. Die in diesem Band enthaltenen 30 Arbeiten beinhalten vorwiegend die Vorträge der Tagungsteilnehmer, teils wurden sie auch unmittelbar im Anschluß an die Tagung von Fachkollegen zum Druck eingereicht und betreffen das Thema des Symposiums. Die stratigraphische Erforschung der pelagischen Trias ist seit dem letzten Jahrzehnt in raschem Fortschreiten begriffen. Es war deshalb das Ziel der Wiener Tagung, zunächst nur einen Überblick über den Wissensfortschritt und den Forschungsstand in den ein­ zelnen Regionen und Ländern zu geben. Dieser Überblick soll zunächst nur die Möglich• keit geben, die Meinungen der Fachleute verschiedener Länder zu vergleichen und eine Grundlage für weitere Diskussionen zu schaffen. Es wurde Wert darauf gelegt, für den westlichen Teil der Tethys möglichst zahlreiche zusammenfassende Darstellungen für verschiedene Länder zu veröffentlichen, die - wenn möglich - übersichtliche Tabellen der regionalen Trias-Stratigraphie enthalten. Darüber hinaus behandeln zahlreiche Arbeiten stratigraphische Gliederungen auf der Basis von Ammoniten und anderen Fossilgruppen (u. a. Mikropaläontologie). Eine Reihe regionaler Studien ist stratigraphi­ schen Detailfragen einzelner Gebiete gewidmet.
    [Show full text]
  • Contributions in BIOLOGY and GEOLOGY
    MILWAUKEE PUBLIC MUSEUM Contributions In BIOLOGY and GEOLOGY Number 51 November 29, 1982 A Compendium of Fossil Marine Families J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions in BIOLOGY and GEOLOGY Number 51 November 29, 1982 A COMPENDIUM OF FOSSIL MARINE FAMILIES J. JOHN SEPKOSKI, JR. Department of the Geophysical Sciences University of Chicago REVIEWERS FOR THIS PUBLICATION: Robert Gernant, University of Wisconsin-Milwaukee David M. Raup, Field Museum of Natural History Frederick R. Schram, San Diego Natural History Museum Peter M. Sheehan, Milwaukee Public Museum ISBN 0-893260-081-9 Milwaukee Public Museum Press Published by the Order of the Board of Trustees CONTENTS Abstract ---- ---------- -- - ----------------------- 2 Introduction -- --- -- ------ - - - ------- - ----------- - - - 2 Compendium ----------------------------- -- ------ 6 Protozoa ----- - ------- - - - -- -- - -------- - ------ - 6 Porifera------------- --- ---------------------- 9 Archaeocyatha -- - ------ - ------ - - -- ---------- - - - - 14 Coelenterata -- - -- --- -- - - -- - - - - -- - -- - -- - - -- -- - -- 17 Platyhelminthes - - -- - - - -- - - -- - -- - -- - -- -- --- - - - - - - 24 Rhynchocoela - ---- - - - - ---- --- ---- - - ----------- - 24 Priapulida ------ ---- - - - - -- - - -- - ------ - -- ------ 24 Nematoda - -- - --- --- -- - -- --- - -- --- ---- -- - - -- -- 24 Mollusca ------------- --- --------------- ------ 24 Sipunculida ---------- --- ------------ ---- -- --- - 46 Echiurida ------ - --- - - - - - --- --- - -- --- - -- - - ---
    [Show full text]
  • The Magnetobiostratigraphy of the Middle Triassic and the Latest Early Triassic from Spitsbergen, Arctic Norway Mark W
    Intercalibration of Boreal and Tethyan time scales: the magnetobiostratigraphy of the Middle Triassic and the latest Early Triassic from Spitsbergen, Arctic Norway Mark W. Hounslow,1 Mengyu Hu,1 Atle Mørk,2,6 Wolfgang Weitschat,3 Jorunn Os Vigran,2 Vassil Karloukovski1 & Michael J. Orchard5 1 Centre for Environmental Magnetism and Palaeomagnetism, Geography, Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, UK 2 SINTEF Petroleum Research, NO-7465 Trondheim, Norway 3 Geological-Palaeontological Institute and Museum, University of Hamburg, Bundesstrasse 55, DE-20146 Hamburg, Germany 5 Geological Survey of Canada, 101-605 Robson Street, Vancouver, BC, V6B 5J3, Canada 6 Department of Geology and Mineral Resources Engineering, Norwegian University of Sciences and Technology, NO-7491 Trondheim, Norway Keywords Abstract Ammonoid biostratigraphy; Boreal; conodonts; magnetostratigraphy; Middle An integrated biomagnetostratigraphic study of the latest Early Triassic to Triassic. the upper parts of the Middle Triassic, at Milne Edwardsfjellet in central Spitsbergen, Svalbard, allows a detailed correlation of Boreal and Tethyan Correspondence biostratigraphies. The biostratigraphy consists of ammonoid and palynomorph Mark W. Hounslow, Centre for Environmental zonations, supported by conodonts, through some 234 m of succession in two Magnetism and Palaeomagnetism, adjacent sections. The magnetostratigraphy consists of 10 substantive normal— Geography, Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 reverse polarity chrons, defined by sampling at 150 stratigraphic levels. The 4YQ, UK. E-mail: [email protected] magnetization is carried by magnetite and an unidentified magnetic sulphide, and is difficult to fully separate from a strong present-day-like magnetization. doi:10.1111/j.1751-8369.2008.00074.x The biomagnetostratigraphy from the late Olenekian (Vendomdalen Member) is supplemented by data from nearby Vikinghøgda.
    [Show full text]
  • Download Download
    I I Rivista Italiana di Paleon roìor,iaeSrrltrqrriia I rolur ;;- -, | f;-' "oo, l UPPER OLENEKIAN (SPATHIAN) AMMONOIDS FROM CHIOS (LO\T/ER TRIASSIC, GREECE): TAXONOMY AND STRATIGRAPHIC POSITION. DOROTHEE MERTMANN' & VOLKER TACOBSHAGEN' Receh:ed July 1st,2002; accepted June 25,20A3 Key-raords: Ammonoidea, Triassic, Olenekian, Chios, Greece. There, the fossils are included in red limestones of rhe Hallstatt facies (Marmarorrapeza. Formation). Renz & Abstact. On the Greek island of Chios, Lower Triassic sections Renz (1948) have delivered rich ammonoid faunas from red limestones of the Hall- published a palaeontological description of statt facies. Here, we present a palaeontological description of Spatl-rian its ammonoids in a monograph. Bender (1970) was the ammonoids, which have been collected during two field campaigns by first to collect fossils from measured sections (CM i, kalian-German teams (Assereto et al. 1980; Gaetani et al. 1992). The II, III) in order to establish coordinared ammonoid and ammonoid assocìations are composed of Ceratitida and Phyllocerati- conodont stratigraphies. This author recognized, more- da, each order containing species of the Noritaceae, Hedenstroemia- ceae, Xenodiscaceae, Dinaritaceae, Pinacocerataceae, Phyllocerataceae, over, that the Spathian beds are overlain by lowermost Ptychitaceae, lJssuritaceae and Megaphyllitaceae. Long ranging gen- Anisian ones s/ith ammonoids comparable with faunas era, e.g. Procarnites and Leioplrylliter, are present as well as endemic of the so-called Hydaspian substage from the Himalayas ones, e.g. Cbiotites, which occurs exclusively in the Lower Trìassic of and Timor. Furthermore, Jacobshagen & Tietze (1974) Chios. The ammonoìd association is indicative of the Probungarites- described an associarion of both Spathian and Lower Subcolwmbites zone sensu Kumn.rel (1973a,).
    [Show full text]
  • Exceptional Fossil Preservation During CO2 Greenhouse Crises? Gregory J
    Palaeogeography, Palaeoclimatology, Palaeoecology 307 (2011) 59–74 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Exceptional fossil preservation during CO2 greenhouse crises? Gregory J. Retallack Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403, USA article info abstract Article history: Exceptional fossil preservation may require not only exceptional places, but exceptional times, as demonstrated Received 27 October 2010 here by two distinct types of analysis. First, irregular stratigraphic spacing of horizons yielding articulated Triassic Received in revised form 19 April 2011 fishes and Cambrian trilobites is highly correlated in sequences in different parts of the world, as if there were Accepted 21 April 2011 short temporal intervals of exceptional preservation globally. Second, compilations of ages of well-dated fossil Available online 30 April 2011 localities show spikes of abundance which coincide with stage boundaries, mass extinctions, oceanic anoxic events, carbon isotope anomalies, spikes of high atmospheric carbon dioxide, and transient warm-wet Keywords: Lagerstatten paleoclimates. Exceptional fossil preservation may have been promoted during unusual times, comparable with fi Fossil preservation the present: CO2 greenhouse crises of expanding marine dead zones, oceanic acidi cation, coral bleaching, Trilobite wetland eutrophication, sea level rise, ice-cap melting, and biotic invasions. Fish © 2011 Elsevier B.V. All rights reserved. Carbon dioxide Greenhouse 1. Introduction Zeigler, 1992), sperm (Nishida et al., 2003), nuclei (Gould, 1971)and starch granules (Baxter, 1964). Taphonomic studies of such fossils have Commercial fossil collectors continue to produce beautifully pre- emphasized special places where fossils are exceptionally preserved pared, fully articulated, complex fossils of scientific(Simmons et al., (Martin, 1999; Bottjer et al., 2002).
    [Show full text]
  • Exceptional Vertebrate Biotas from the Triassic of China, and the Expansion of Marine Ecosystems After the Permo-Triassic Mass Extinction
    Earth-Science Reviews 125 (2013) 199–243 Contents lists available at ScienceDirect Earth-Science Reviews journal homepage: www.elsevier.com/locate/earscirev Exceptional vertebrate biotas from the Triassic of China, and the expansion of marine ecosystems after the Permo-Triassic mass extinction Michael J. Benton a,⁎, Qiyue Zhang b, Shixue Hu b, Zhong-Qiang Chen c, Wen Wen b, Jun Liu b, Jinyuan Huang b, Changyong Zhou b, Tao Xie b, Jinnan Tong c, Brian Choo d a School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK b Chengdu Center of China Geological Survey, Chengdu 610081, China c State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan 430074, China d Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China article info abstract Article history: The Triassic was a time of turmoil, as life recovered from the most devastating of all mass extinctions, the Received 11 February 2013 Permo-Triassic event 252 million years ago. The Triassic marine rock succession of southwest China provides Accepted 31 May 2013 unique documentation of the recovery of marine life through a series of well dated, exceptionally preserved Available online 20 June 2013 fossil assemblages in the Daye, Guanling, Zhuganpo, and Xiaowa formations. New work shows the richness of the faunas of fishes and reptiles, and that recovery of vertebrate faunas was delayed by harsh environmental Keywords: conditions and then occurred rapidly in the Anisian. The key faunas of fishes and reptiles come from a limited Triassic Recovery area in eastern Yunnan and western Guizhou provinces, and these may be dated relative to shared strati- Reptile graphic units, and their palaeoenvironments reconstructed.
    [Show full text]
  • Università Degli Studi Di Milano
    1 UNIVERSITÀ DEGLI STUDI DI MILANO DOTTORATO DI RICERCA IN SCIENZE DELLA TERRA Ciclo XXXII DIPARTIMENTO DI SCIENZE DELLA TERRA TESI DI DOTTORATO DI RICERCA EARLY CARNIAN AMMONOIDS FROM NEVADA: REVISED TAXONOMY, EVOLUTIONARY TRENDS AND USEFULNESS FOR THE DEFINITION OF THE LATE TRIASSIC TIME SCALE RUBEN MARCHESI Matr. n. R11510 Tutore: Prof. MARCO BALINI Coordinatore: Prof. FERNANDO CAMARA ARTIGAS Anno Accademico 2018-2019 1 2 2 3 Abstract ................................................................................................................................................ 5 Introduction to the biochronostratigraphy of the Upper Ladinian and Lower Carnian ................ 7 1.1 - Basic concepts ............................................................................................................................. 7 1.2 - Evolution of the Tethyan and North American upper Ladinian – Lower Carnian chronostratigraphic scale ...................................................................................................................... 9 1.3 - Carnian Stage GSSP and open problems ................................................................................... 12 Studied localities: geological and structural setting.......................................................................... 15 2.1 - Regional geological and structural setting ................................................................................. 15 2.2 - South Canyon............................................................................................................................
    [Show full text]
  • Paleontological Contributions
    THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS May 15, 1970 Paper 47 SIGNIFICANCE OF SUTURES IN PHYLOGENY OF AMMONOIDEA JURGEN KULLMANN AND JOST WIEDMANN Universinit Tubingen, Germany ABSTRACT Because of their complex structure ammonoid sutures offer best possibilities for the recognition of homologies. Sutures comprise a set of individual elements, which may be changed during the course of ontogeny and phylogeny as a result of heterotopy, hetero- morphy, and heterochrony. By means of a morphogenetic symbol terminology, sutural formulas may be established which show the composition of adult sutures as well as their ontogenetic development. WEDEKIND ' S terminology system is preferred because it is the oldest and morphogenetically the most consequent, whereas RUZHENTSEV ' S system seems to be inadequate because of its usage of different symbols for homologous elements. WEDEKIND ' S system includes only five symbols: E (for external lobe), L (for lateral lobe), I (for internal lobe), A (for adventitious lobe), U (for umbilical lobe). Investigations on ontogenetic development show that all taxonomic groups of the entire superorder Ammonoidea can be compared one with another by means of their sutural development, expressed by their sutural formulas. Most of the higher and many of the lower taxa can be solely characterized and arranged in phylogenetic relationship by use of their sutural formulas. INTRODUCTION Today very few ammonoid workers doubt the (e.g., conch shape, sculpture, growth lines) rep- importance of sutures as indication of ammonoid resent less complicated structures; therefore, phylogeny. The considerable advances in our numerous homeomorphs restrict the usefulness of knowledge of ammonoid evolution during recent these features for phylogenetic investigations.
    [Show full text]
  • X. Paleontology, Biostratigraphy
    BIBLIOGRAPHY OF THE GEOLOGY OF INDONESIA AND SURROUNDING AREAS Edition 7.0, July 2018 J.T. VAN GORSEL X. PALEONTOLOGY, BIOSTRATIGRAPHY www.vangorselslist.com X. PALEONTOLOGY, BIOSTRATIGRAPHY X. PALEONTOLOGY, BIOSTRATIGRAPHY ................................................................................................... 1 X.1. Quaternary-Recent faunas-microfloras and distribution ....................................................................... 60 X.2. Tertiary ............................................................................................................................................. 120 X.3. Jurassic- Cretaceous ........................................................................................................................ 161 X.4. Triassic ............................................................................................................................................ 171 X.5. Paleozoic ......................................................................................................................................... 179 X.6. Quaternary Hominids, Mammals and associated stratigraphy ........................................................... 191 This chapter X of the Bibliography 7.0 contains 288 pages with >2150 papers. These are mainly papers of a more general or regional nature. Numerous additional paleontological papers that deal with faunas/ floras from specific localities are listed under those areas in this Bibliography. It is organized in six sub-chapters: - X.1 on modern and sub-recent
    [Show full text]
  • Middle Triassic Conodonts from Israel, Southern France and Spain (1)
    Middle Triassic Conodonts from Israel, Southern France and Spain (1) von F. Hirsch*) *) Anschrift: F.Hirsch Geological Survey of Israel 30, Malkhe Yisrael St., Jerusalem, Israel. (1) This study was mainJy carried out at the Museum of Natural History, Geneva, with the aid of grant Nr. 2. 40. 68 of the Swiss national fund for scientific research. Mitt. Ges. GcoL Bcrgbaustud. 21. Bd. S.811-828 Innsbruck, 1972 Contens Introduction .„„.„ .. „ .. „.„ .. „ ...... „„„.. „ ... „.„.„ ... „ .. „.„„„ ......... „ .............. „„„ ....... „„ 813 Paleontology ....... „ ..... „ ... „ ............... „„.„ ... „„„.„„„„„„.„.„.„ ...... „ ............... „ .... „.. 814 Stratigraphy „.„.„ .. „ ... „.„ .. „.„„„„„.. „ ................... „ .. „„„ ................ „ .... „.„ ... „ .. „.... 817 Age „ .... „ ..... „.„ ..... „ ... „„ ..... „„.„ .... „.„ ....... „ ......... „ .... „„ ........ „„.„„„ .. „„„.„ .... „.„.. 820 Paleogeography . „ .. „. „ ... „ .„ .... „ „ .„ ... „„ ... „. „ „„ „„ .. „ „„. „„ „„ ..... „ ... „ .. „ ......... „ .. „. .. 820 Conclusions .. „.„ ................. „ .......... „ ......... „ ......... „ .. „ ........ „„...... „ .. „„ .. „.„„„.„„.„ 821 Rcferences cited .„ ..... „.„ ....•......... „.„„.„ .. „.„ ........ „„ ... „ ..... „ ........................... „.„.. 822 812 Hirsch: Middle Triassic Conodonts Zusammenfassung: Es werden Conodonten beschrieben aus Ladinischen ,,Muschelkalk"-Folgen in Israel, Provence (Südfrankreich), Katalanien, Menorka, Mallorka und Jaen (Spanien). Die zum Teil endemische Faunen-Vergesellschaftung ist charakteristisch
    [Show full text]
  • Retallack 2011 Lagerstatten
    This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier’s archiving and manuscript policies are encouraged to visit: http://www.elsevier.com/copyright Author's personal copy Palaeogeography, Palaeoclimatology, Palaeoecology 307 (2011) 59–74 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Exceptional fossil preservation during CO2 greenhouse crises? Gregory J. Retallack Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403, USA article info abstract Article history: Exceptional fossil preservation may require not only exceptional places, but exceptional times, as demonstrated Received 27 October 2010 here by two distinct types of analysis. First, irregular stratigraphic spacing of horizons yielding articulated Triassic Received in revised form 19 April 2011 fishes and Cambrian trilobites is highly correlated in sequences in different parts of the world, as if there were Accepted 21 April 2011 short temporal intervals of exceptional preservation globally. Second, compilations of ages of well-dated fossil Available online 30 April 2011 localities show spikes of abundance which coincide with stage boundaries, mass extinctions, oceanic anoxic events, carbon isotope anomalies, spikes of high atmospheric carbon dioxide, and transient warm-wet Keywords: Lagerstatten paleoclimates.
    [Show full text]