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Cambrian Phytoplankton of the Brunovistulicum – Taxonomy and Biostratigraphy
MONIKA JACHOWICZ-ZDANOWSKA Cambrian phytoplankton of the Brunovistulicum – taxonomy and biostratigraphy Polish Geological Institute Special Papers,28 WARSZAWA 2013 CONTENTS Introduction...........................................................6 Geological setting and lithostratigraphy.............................................8 Summary of Cambrian chronostratigraphy and acritarch biostratigraphy ...........................13 Review of previous palynological studies ...........................................17 Applied techniques and material studied............................................18 Biostratigraphy ........................................................23 BAMA I – Pulvinosphaeridium antiquum–Pseudotasmanites Assemblage Zone ....................25 BAMA II – Asteridium tornatum–Comasphaeridium velvetum Assemblage Zone ...................27 BAMA III – Ichnosphaera flexuosa–Comasphaeridium molliculum Assemblage Zone – Acme Zone .........30 BAMA IV – Skiagia–Eklundia campanula Assemblage Zone ..............................39 BAMA V – Skiagia–Eklundia varia Assemblage Zone .................................39 BAMA VI – Volkovia dentifera–Liepaina plana Assemblage Zone (Moczyd³owska, 1991) ..............40 BAMA VII – Ammonidium bellulum–Ammonidium notatum Assemblage Zone ....................40 BAMA VIII – Turrisphaeridium semireticulatum Assemblage Zone – Acme Zone...................41 BAMA IX – Adara alea–Multiplicisphaeridium llynense Assemblage Zone – Acme Zone...............42 Regional significance of the biostratigraphic -
The Capitanian (Permian) Kamura Cooling Event
Palaeoworld 16 (2007) 16–30 Research paper The Capitanian (Permian) Kamura cooling event: The beginning of the Paleozoic–Mesozoic transition Yukio Isozaki a,∗, Hodaka Kawahata b, Kayo Minoshima c a Department of Earth Science and Astronomy, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan b Graduate School of Frontier Sciences and Ocean Research Institute, The University of Tokyo, Minamidai, Nakano, Tokyo 164-8639, Japan c Geological Survey of Japan, AIST, Tsukuba 305-8567, Japan Received 4 January 2007; received in revised form 12 May 2007; accepted 15 May 2007 Available online 25 May 2007 Abstract 13 The Capitanian (late Guadalupian) high positive plateau interval of carbonate carbon isotope ratio (␦ Ccarb) was recognized lately in a mid-Panthalassan paleo-atoll limestone in Japan as the Kamura event. This unique episode in the late-middle Permian indicates high productivity in the low-latitude superocean likely coupled with resultant global cooling. This event ended shortly before the Guadalupian–Lopingian (middle-late Permian) boundary (ca. 260 Ma); however, its onset time has not been ascertained previously. Through a further analysis of the Wordian (middle Guadalupian) to lower Capitanian interval in the same limestone at 13 Kamura in Kyushu, we have found that the ␦ Ccarb values started to rise over +4.5‰ and reached the maximum of +7.0‰ within the Yabeina (fusuline) Zone of the early-middle Capitanian. Thus the total duration of the Kamura event is estimated over 3–4 million years, given the whole Capitanian ranging for 5.4 million years. This 3–4 million years long unique cooling event occurred clearly after the Gondwana glaciation period (late Carboniferous to early Permian) in the middle of the long-term warming trend toward the Mesozoic. -
Precise Age and Biostratigraphic Significance of the Kinney Brick Quarry Lagerstätte, Pennsylvanian of New Mexico, USA
Precise age and biostratigraphic significance of the Kinney Brick Quarry Lagerstätte, Pennsylvanian of New Mexico, USA Spencer G. Lucas1, Bruce D. Allen2, Karl Krainer3, James Barrick4, Daniel Vachard5, Joerg W. Schneider6, William A. DiMichele7 and Arden R. Bashforth8 1New Mexico Museum of Natural History, 1801 Mountain Road N.W., Albuquerque, New Mexico, 87104, USA email: [email protected] 2New Mexico Bureau of Geology and Mineral Resources, 801 Leroy Place, Socorro, New Mexico, 87801, USA email: [email protected] 3Institute of Geology and Paleontology, University of Innsbruck, Innsbruck, A-6020, Austria email: [email protected] 4Department of Geosciences, Texas Tech University, Box 41053, Lubbock, Texas, 79409, USA email: [email protected] 5Université des Sciences et Technologies de Lille, UFR des Sciences de la Terre, UPRESA 8014 du CNRS, Laboratoire LP3, Bâtiment SN 5, F-59655 Villeneuve d’Ascq, Cédex, France email: [email protected] 6TU Bergakademie Freiberg, Cottastasse 2, D-09596 Freiberg, Germany email:[email protected] 7Department of Paleobiology, NMNH Smithsonian Institution, Washington, DC 20560 email: [email protected] 8Geological Museum, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark email: [email protected] ABSTRACT: The Kinney Brick Quarry is a world famous Late Pennsylvanian fossil Lagerstätte in central New Mexico, USA. The age assigned to the Kinney Brick Quarry (early-middle Virgilian) has long been based more on its inferred lithostratigraphic position than on biostratigraphic indicators at the quarry. We have developed three datasets —-stratigraphic position, fusulinids and conodonts— that in- dicate the Kinney Brick Quarry is older, of middle Missourian (Kasimovian) age. -
Limb Ossification in the Paleozoic Branchiosaurid Apateon (Temnospondyli) and the Early Evolution of Preaxial Dominance in Tetrapod Limb Development
EVOLUTION & DEVELOPMENT 9:1, 69 –75 (2007) Limb ossification in the Paleozoic branchiosaurid Apateon (Temnospondyli) and the early evolution of preaxial dominance in tetrapod limb development Nadia B. Fro¨bisch,a,Ã Robert L. Carroll,a and Rainer R. Schochb aRedpath Museum, McGill University, 859 Sherbrooke Street West, Montreal H3A 2K6, Canada bStaatliches Museum fu¨r Naturkunde Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany ÃAuthor for correspondence (email: [email protected]) SUMMARY Despite the wide range of shapes and sizes that divergent evolution of these two pathways and its causes are accompany a vast variety of functions, the development of still not understood. Based on an extensive ontogenetic series tetrapod limbs follows a conservative pattern of de novo we investigated the pattern of limb development of the 300 Ma condensation, branching, and segmentation. Development of old branchiosaurid amphibian Apateon. This revealed a the zeugopodium and digital arch typically occurs in a posterior preaxial dominance in limb development that was previously to anterior sequence, referred to as postaxial dominance, with believed to be unique and derived for modern salamanders. a digital sequence of 4–3–5–2–1. The only exception to this The Branchiosauridae are favored as close relatives of pattern in all of living Tetrapoda can be found in salamanders, extant salamanders in most phylogenetic hypotheses of the which display a preaxial dominance in limb development, a de highly controversial origins and relationships of extant novo condensation of a basale commune (distal carpal/tarsal amphibians. The findings provide new insights into the 112) and a precoccial development of digits I and II. -
Palaeobiology of the Early Ediacaran Shuurgat Formation, Zavkhan Terrane, South-Western Mongolia
Journal of Systematic Palaeontology ISSN: 1477-2019 (Print) 1478-0941 (Online) Journal homepage: http://www.tandfonline.com/loi/tjsp20 Palaeobiology of the early Ediacaran Shuurgat Formation, Zavkhan Terrane, south-western Mongolia Ross P. Anderson, Sean McMahon, Uyanga Bold, Francis A. Macdonald & Derek E. G. Briggs To cite this article: Ross P. Anderson, Sean McMahon, Uyanga Bold, Francis A. Macdonald & Derek E. G. Briggs (2016): Palaeobiology of the early Ediacaran Shuurgat Formation, Zavkhan Terrane, south-western Mongolia, Journal of Systematic Palaeontology, DOI: 10.1080/14772019.2016.1259272 To link to this article: http://dx.doi.org/10.1080/14772019.2016.1259272 Published online: 20 Dec 2016. Submit your article to this journal Article views: 48 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=tjsp20 Download by: [Harvard Library] Date: 31 January 2017, At: 11:48 Journal of Systematic Palaeontology, 2016 http://dx.doi.org/10.1080/14772019.2016.1259272 Palaeobiology of the early Ediacaran Shuurgat Formation, Zavkhan Terrane, south-western Mongolia Ross P. Anderson a*,SeanMcMahona,UyangaBoldb, Francis A. Macdonaldc and Derek E. G. Briggsa,d aDepartment of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, Connecticut, 06511, USA; bDepartment of Earth Science and Astronomy, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan; cDepartment of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts, 02138, USA; dPeabody Museum of Natural History, Yale University, 170 Whitney Avenue, New Haven, Connecticut, 06511, USA (Received 4 June 2016; accepted 27 September 2016) Early diagenetic chert nodules and small phosphatic clasts in carbonates from the early Ediacaran Shuurgat Formation on the Zavkhan Terrane of south-western Mongolia preserve diverse microfossil communities. -
The Lower Permian Abo Formation in the Fra Cristobal and Caballo Mountains, Sierra County, New Mexico Spencer G
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/63 The Lower Permian Abo Formation in the Fra Cristobal and Caballo Mountains, Sierra County, New Mexico Spencer G. Lucas, Karl Krainer, Dan S. Chaney, William A. DiMichele, Sebastian Voigt, David S. Berman, and Amy C. Henrici, 2012, pp. 345-376 in: Geology of the Warm Springs Region, Lucas, Spencer G.; McLemore, Virginia T.; Lueth, Virgil W.; Spielmann, Justin A.; Krainer, Karl, New Mexico Geological Society 63rd Annual Fall Field Conference Guidebook, 580 p. This is one of many related papers that were included in the 2012 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. -
Guadalupian, Middle Permian) Mass Extinction in NW Pangea (Borup Fiord, Arctic Canada): a Global Crisis Driven by Volcanism and Anoxia
The Capitanian (Guadalupian, Middle Permian) mass extinction in NW Pangea (Borup Fiord, Arctic Canada): A global crisis driven by volcanism and anoxia David P.G. Bond1†, Paul B. Wignall2, and Stephen E. Grasby3,4 1Department of Geography, Geology and Environment, University of Hull, Hull, HU6 7RX, UK 2School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK 3Geological Survey of Canada, 3303 33rd Street N.W., Calgary, Alberta, T2L 2A7, Canada 4Department of Geoscience, University of Calgary, 2500 University Drive N.W., Calgary Alberta, T2N 1N4, Canada ABSTRACT ing gun of eruptions in the distant Emeishan 2009; Wignall et al., 2009a, 2009b; Bond et al., large igneous province, which drove high- 2010a, 2010b), making this a mid-Capitanian Until recently, the biotic crisis that oc- latitude anoxia via global warming. Although crisis of short duration, fulfilling the second cri- curred within the Capitanian Stage (Middle the global Capitanian extinction might have terion. Several other marine groups were badly Permian, ca. 262 Ma) was known only from had different regional mechanisms, like the affected in equatorial eastern Tethys Ocean, in- equatorial (Tethyan) latitudes, and its global more famous extinction at the end of the cluding corals, bryozoans, and giant alatocon- extent was poorly resolved. The discovery of Permian, each had its roots in large igneous chid bivalves (e.g., Wang and Sugiyama, 2000; a Boreal Capitanian crisis in Spitsbergen, province volcanism. Weidlich, 2002; Bond et al., 2010a; Chen et al., with losses of similar magnitude to those in 2018). In contrast, pelagic elements of the fauna low latitudes, indicated that the event was INTRODUCTION (ammonoids and conodonts) suffered a later, geographically widespread, but further non- ecologically distinct, extinction crisis in the ear- Tethyan records are needed to confirm this as The Capitanian (Guadalupian Series, Middle liest Lopingian (Huang et al., 2019). -
UTEP) Geological Sciences
S. Pon1, D. De los Santos1, G. Alvarez-Rodriguez1, F. Enriquez1 S. Terrazas1, S. Terrazas1, J. Ricketts1, J.G. Olgin1,2, 1University of Texas at El Paso – Geological Sciences (500 University, El Paso, TX 79968), 2El Paso Community College – Physics Department (9570 Gateway N. Blvd, El Paso, TX 79924) Sarah Michelle Pon Deandra De Los Santos I am a senior at The University of Texas at El Paso, studying I am a senior at the University of Texas at El Paso (UTEP) Geological Sciences. I am excited to bring ideas and concepts of majoring in Geological Sciences and will graduate May, 2018. Abstract geology and planetary sciences to students. Whether it be During my time at UTEP, I have presented on salt diapirs and students who are pressuring a career in the sciences or students their possible entrainment methods at the Geological Society of just fulfilling their requirements. My goal with EIPS is to engage America conference in San Antonio. I also assisted Kuwanna Future Progress all students and get them asking questions and have them search Dyer-Pietras, a SUNY Binghampton University PhD candidate, The number of underrepresented minorities pursuing for the answers. with her research on boundaries between Eocene rock types For this internship, I have written a lab as an introduction to deposited in the shallow and deeper lake locations of the STEM fields, specifically in the sciences, has declined in remote sensing. I give a quick overview of what remote sensing is, Piceance basin in Rifle, Colorado, this past summer. I am now Furthermore, the Spring and Fall 2018 will include recent times [1]. -
Early Tetrapod Relationships Revisited
Biol. Rev. (2003), 78, pp. 251–345. f Cambridge Philosophical Society 251 DOI: 10.1017/S1464793102006103 Printed in the United Kingdom Early tetrapod relationships revisited MARCELLO RUTA1*, MICHAEL I. COATES1 and DONALD L. J. QUICKE2 1 The Department of Organismal Biology and Anatomy, The University of Chicago, 1027 East 57th Street, Chicago, IL 60637-1508, USA ([email protected]; [email protected]) 2 Department of Biology, Imperial College at Silwood Park, Ascot, Berkshire SL57PY, UK and Department of Entomology, The Natural History Museum, Cromwell Road, London SW75BD, UK ([email protected]) (Received 29 November 2001; revised 28 August 2002; accepted 2 September 2002) ABSTRACT In an attempt to investigate differences between the most widely discussed hypotheses of early tetrapod relation- ships, we assembled a new data matrix including 90 taxa coded for 319 cranial and postcranial characters. We have incorporated, where possible, original observations of numerous taxa spread throughout the major tetrapod clades. A stem-based (total-group) definition of Tetrapoda is preferred over apomorphy- and node-based (crown-group) definitions. This definition is operational, since it is based on a formal character analysis. A PAUP* search using a recently implemented version of the parsimony ratchet method yields 64 shortest trees. Differ- ences between these trees concern: (1) the internal relationships of aı¨stopods, the three selected species of which form a trichotomy; (2) the internal relationships of embolomeres, with Archeria -
Palynology of the Middle Ordovician Hawaz Formation in the Murzuq Basin, South-West Libya
This is a repository copy of Palynology of the Middle Ordovician Hawaz Formation in the Murzuq Basin, south-west Libya. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/125997/ Version: Accepted Version Article: Abuhmida, F.H. and Wellman, C.H. (2017) Palynology of the Middle Ordovician Hawaz Formation in the Murzuq Basin, south-west Libya. Palynology, 41. pp. 31-56. ISSN 0191-6122 https://doi.org/10.1080/01916122.2017.1356393 Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Palynology of the Middle Ordovician Hawaz Formation in the Murzuq Basin, southwest Libya Faisal H. Abuhmidaa*, Charles H. Wellmanb aLibyan Petroleum Institute, Tripoli, Libya P.O. Box 6431, bUniversity of Sheffield, Department of Animal and Plant Sciences, Alfred Denny Building, Western Bank, Sheffield, S10 2TN, UK Twenty nine core and seven cuttings samples were collected from two boreholes penetrating the Middle Ordovician Hawaz Formation in the Murzuq Basin, southwest Libya. -
Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships
438 Article 438 by Saswati Bandyopadhyay1* and Sanghamitra Ray2 Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships 1Geological Studies Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India; email: [email protected] 2Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721302, India; email: [email protected] *Corresponding author (Received : 23/12/2018; Revised accepted : 11/09/2019) https://doi.org/10.18814/epiiugs/2020/020028 The twelve Gondwanan stratigraphic horizons of many extant lineages, producing highly diverse terrestrial vertebrates India have yielded varied vertebrate fossils. The oldest in the vacant niches created throughout the world due to the end- Permian extinction event. Diapsids diversified rapidly by the Middle fossil record is the Endothiodon-dominated multitaxic Triassic in to many communities of continental tetrapods, whereas Kundaram fauna, which correlates the Kundaram the non-mammalian synapsids became a minor components for the Formation with several other coeval Late Permian remainder of the Mesozoic Era. The Gondwana basins of peninsular horizons of South Africa, Zambia, Tanzania, India (Fig. 1A) aptly exemplify the diverse vertebrate faunas found Mozambique, Malawi, Madagascar and Brazil. The from the Late Palaeozoic and Mesozoic. During the last few decades much emphasis was given on explorations and excavations of Permian-Triassic transition in India is marked by vertebrate fossils in these basins which have yielded many new fossil distinct taxonomic shift and faunal characteristics and vertebrates, significant both in numbers and diversity of genera, and represented by small-sized holdover fauna of the providing information on their taphonomy, taxonomy, phylogeny, Early Triassic Panchet and Kamthi fauna. -
Tobey-Dawn-Msc-ERTH-September
Water and Wind: The Fluvial and Eolian Forces Behind the Pennsylvanian-Permian Halgaito Formation, Utah By Dawn E. Tobey Submitted in partial fulfillment of the requirements for the degree of Masters of Science at Dalhousie University Halifax, Nova Scotia September 2020 © Copyright by Dawn E. Tobey, 2020 Table Of Contents List of Tables ............................................................................................................................... v List of Figures ........................................................................................................................... vi Abstract ..................................................................................................................................... vii List of Abbreviations Used ................................................................................................. viii Acknowledgements .................................................................................................................ix Chapter 1: Introduction .......................................................................................................... 1 1.1 Statement of Problem................................................................................................................ 1 1.2 Objectives ....................................................................................................................................... 6 1.3 Contributions of the Author ..................................................................................................