The Nature of the Fossil Record
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Palaeoenvironmental Interpretation of the Triassic Sandstones of Scrabo
PALAEOENVIRONMENTAL INTERPRETATION OF THE TRIASSIC SANDSTONES OF SCRABO, COUNTY DOWN, NORTHERN IRELAND: ICHNOLOGICAL AND SEDIMENTOLOGICAL STUDIES INDICATING A MIXED FLUVIATILE-AEOLIAN SUCCESSION JAMES O. BUCKMAN, PHILIPS. DOUGHTY,MICHAEL J. BENTON and ANDREW J. JERAM (Received 19 May 1997) Abstract The Sherwood Sandstone Group at Scrabo, Co. Down, NorthernIreland, has been variously interpretedas aeolian or fluviatile. The sedimentological and ichnological data show that these sandstone-dominatedfacies were deposited within a mixed fluviatile-aeolian regime, in which fluviatile processes were responsible for the majorityof the preservedsedimentary sequence. The sequence contains a moderately diverse non-marine ichnofauna comprising the invertebratetrace fossils Biformites, Cruziana/Rusophycus(Isopodichnus), Herpystezoum(Unisulcus), Planolites, 'small arthropodtrackways', 'large arthropodtrackways' (cf. in part Paleohelcura), and the vertebrate trace fossil Chirotherium? (as well as a number of other, presently unnamed, vertebrate footprints). The recorded ichnofauna greatly increases that previously known from the Irish Triassic, comparesfavourably with that from the rest of Europe, and representsthe only known Irish locality for reptiliantrackways. Introduction north-east, are exposed at Scrabo Hill (Charlesworth 1963). Several Palaeogene The Sherwood Sandstone Group (Triassic) dolerite dykes and sills are exposed at the in north-eastIreland comprises part of a thick southern end of the hill, and these form a sequence of non-marine sediments, with a resistant cap that has shielded the sandstones maximum thickness of 1850m (Parnell et al. against removal by ice during the last 1992), which are rarely exposed and known glaciations. mostly from borehole data. At Scrabo (Fig. 1) Various environmental interpretationshave the Sherwood SandstoneGroup occurs within a been made of the Scrabo succession. The deep trough of Carboniferousto Triassic age succession has been interpretedas representing (Parnell et al. -
Ischigualasto Formation. the Second Is a Sile- Diversity Or Abundance, but This Result Was Based on Only 19 of Saurid, Ignotosaurus Fragilis (Fig
This article was downloaded by: [University of Chicago Library] On: 10 October 2013, At: 10:52 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Journal of Vertebrate Paleontology Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/ujvp20 Vertebrate succession in the Ischigualasto Formation Ricardo N. Martínez a , Cecilia Apaldetti a b , Oscar A. Alcober a , Carina E. Colombi a b , Paul C. Sereno c , Eliana Fernandez a b , Paula Santi Malnis a b , Gustavo A. Correa a b & Diego Abelin a a Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan , España 400 (norte), San Juan , Argentina , CP5400 b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires , Argentina c Department of Organismal Biology and Anatomy, and Committee on Evolutionary Biology , University of Chicago , 1027 East 57th Street, Chicago , Illinois , 60637 , U.S.A. Published online: 08 Oct 2013. To cite this article: Ricardo N. Martínez , Cecilia Apaldetti , Oscar A. Alcober , Carina E. Colombi , Paul C. Sereno , Eliana Fernandez , Paula Santi Malnis , Gustavo A. Correa & Diego Abelin (2012) Vertebrate succession in the Ischigualasto Formation, Journal of Vertebrate Paleontology, 32:sup1, 10-30, DOI: 10.1080/02724634.2013.818546 To link to this article: http://dx.doi.org/10.1080/02724634.2013.818546 PLEASE SCROLL DOWN FOR ARTICLE Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. -
The Rock and Fossil Record the Rock and Fossil Record the Rock And
TheThe RockRock andand FossilFossil RecordRecord Earth’s Story and Those Who First Listened . 426 Apply . 427 Internet Connect . 428 When on Earth? . 429 Activity . 430 MathBreak . 434 Internet Connect 432, 435 Looking at Fossils . 436 QuickLab . 438 Internet Connect . 440 Time Marches On . 441 QuickLab . 443 Internet Connect . 445 Chapter Lab . 446 Chapter Review . 449 TEKS/TAKS Practice Tests . 451, 452 Feature Article . 453 Time Stands Still Pre-Reading Questions Sealed in darkness for 49 million years, this beetle still shimmers with the same metallic hues that once helped it hide among ancient plants. This rare fossil 1. How do scientists study was found in Messel, Germany. In the same rock formation, the Earth’s history? scientists have found fossilized crocodiles, bats, birds, and 2. How can you tell the age frogs. A living stag beetle (above) has a similar form and of rocks and fossils? color. Do you think that these two beetles would live in 3. What natural or human similar environments? What do you think Messel, Germany, events have caused mass was like 49 million years ago? In this chapter, you will extinctions in Earth’s learn how scientists answer these kinds of questions. history? 424 Chapter 16 Copyright © by Holt, Rinehart and Winston. All rights reserved. MAKING FOSSILS Procedure 1. You and three or four of your classmates will be given several pieces of modeling clay and a paper sack containing a few small objects. 2. Press each object firmly into a piece of clay. Try to leave an imprint showing as much detail as possible. -
Copertina Guida Ai TRILOBITI V3 Esterno
Enrico Bonino nato in provincia di Bergamo nel 1966, Enrico si è laureato in Geologia presso il Dipartimento di Scienze della Terra dell'Università di Genova. Attualmente risiede in Belgio dove svolge attività come specialista nel settore dei Sistemi di Informazione Geografica e analisi di immagini digitali. Curatore scientifico del Museo Back to the Past, ha pubblicato numerosi volumi di paleontologia in lingua italiana e inglese, collaborando inoltre all’elaborazione di testi e pubblicazioni scientifiche a livello nazonale e internazionale. Oltre alla passione per questa classe di artropodi, i suoi interessi sono orientati alle forme di vita vissute nel Precambriano, stromatoliti, e fossilizzazioni tipo konservat-lagerstätte. Carlo Kier nato a Milano nel 1961, Carlo si è laureato in Legge, ed è attualmente presidente della catena di alberghi Azul Hotel. Risiede a Cancun, Messico, dove si dedica ad attività legate all'ambiente marino. All'età di 16 anni, ha iniziato una lunga collaborazione con il Museo di Storia Naturale di Milano, ed è a partire dal 1970 che prese inizio la vera passione per i trilobiti, dando avvio a quella che oggi è diventata una delle collezioni paleontologiche più importanti al mondo. La sua instancabile attività di ricerca sul terreno in varie parti del globo e la collaborazione con professionisti del settore, ha permesso la descrizione di nuove specie di trilobiti ed artropodi. Una forte determinazione e la costruzione di un nuovo complesso alberghiero (AZUL Sensatori) hanno infine concretizzzato la realizzazione -
Reassignment of Vertebrate Ichnotaxa from the Upper Carboniferous 'Fern
Reassignment of vertebrate ichnotaxa from the Upper Carboniferous ‘Fern Ledges’, Lancaster Formation, Saint John, New Brunswick, Canada MATTHEW R. STIMSON1,2*, RANDALL F. MILLER1, AND SPENCER G. LUCAS3 1. Steinhammer Palaeontology Laboratory, New Brunswick Museum, Saint John, New Brunswick E2K 1E5, Canada 2. New Brunswick Geological Surveys Branch, Department of Energy and Mines, Fredericton, New Brunswick E3B 5H1, Canada 3. New Mexico Museum of Natural History and Science, Albuquerque, New Mexico 87104, USA *Corresponding author <[email protected]> Date received: 14 April 2015 ¶ Date accepted: 04 September 2015 ABSTRACT Vertebrate ichnotaxa described by George Frederic Matthew in 1910 from the Upper Carboniferous (Lower Pennsylvanian) ‘Fern Ledges’ of Saint John, New Brunswick, were dismissed as dubious trackways by previous authors. Thus, three new ichnospecies Matthew described appeared in the 1975 Treatise on Invertebrate Paleontology as “unrecognized or unrecognizable” and were mostly forgotten by vertebrate ichnologists. These traces include Hylopus (?) variabilis, Nanopus (?) vetustus and Bipezia bilobata. One ichnospecies, Hylopus (?) variabilis, here is retained as a valid tetrapod footprint ichnotaxon and reassigned to the ichnogenus Limnopus as a new combination, together with other poorly preserved specimens Matthew labeled, but never described. Nanopus (?) vetustus and Bipezia bilobata named by Matthew in the same paper, have been reexamined and remain as nomina dubia. RÉSUMÉ Les ichnotaxons vertébrés de Fern Ledges du Carbonifère supérieur (Pennsylvanien inférieur) de Saint John, au Nouveau-Brunswick, décrits par George Frederic Matthew en 1910 avaient été rejetés par des auteurs précédents les considérant comme des séries de traces douteuses. Trois nouvelles ichnoespèces décrites par Matthew sont ainsi appa- rues dans le Treatise on Invertebrate Paleontology (Traité sur la paléontologie des invertébrés) de 1975 à titre d’espèces « non identifiées ou non identifiables » et ont principalement été laissées aux ichnologues des vertébrés. -
Geologic Time and Geologic Maps
NAME GEOLOGIC TIME AND GEOLOGIC MAPS I. Introduction There are two types of geologic time, relative and absolute. In the case of relative time geologic events are arranged in their order of occurrence. No attempt is made to determine the actual time at which they occurred. For example, in a sequence of flat lying rocks, shale is on top of sandstone. The shale, therefore, must by younger (deposited after the sandstone), but how much younger is not known. In the case of absolute time the actual age of the geologic event is determined. This is usually done using a radiometric-dating technique. II. Relative geologic age In this section several techniques are considered for determining the relative age of geologic events. For example, four sedimentary rocks are piled-up as shown on Figure 1. A must have been deposited first and is the oldest. D must have been deposited last and is the youngest. This is an example of a general geologic law known as the Law of Superposition. This law states that in any pile of sedimentary strata that has not been disturbed by folding or overturning since accumulation, the youngest stratum is at the top and the oldest is at the base. While this may seem to be a simple observation, this principle of superposition (or stratigraphic succession) is the basis of the geologic column which lists rock units in their relative order of formation. As a second example, Figure 2 shows a sandstone that has been cut by two dikes (igneous intrusions that are tabular in shape).The sandstone, A, is the oldest rock since it is intruded by both dikes. -
Soils in the Geologic Record
in the Geologic Record 2021 Soils Planner Natural Resources Conservation Service Words From the Deputy Chief Soils are essential for life on Earth. They are the source of nutrients for plants, the medium that stores and releases water to plants, and the material in which plants anchor to the Earth’s surface. Soils filter pollutants and thereby purify water, store atmospheric carbon and thereby reduce greenhouse gasses, and support structures and thereby provide the foundation on which civilization erects buildings and constructs roads. Given the vast On February 2, 2020, the USDA, Natural importance of soil, it’s no wonder that the U.S. Government has Resources Conservation Service (NRCS) an agency, NRCS, devoted to preserving this essential resource. welcomed Dr. Luis “Louie” Tupas as the NRCS Deputy Chief for Soil Science and Resource Less widely recognized than the value of soil in maintaining Assessment. Dr. Tupas brings knowledge and experience of global change and climate impacts life is the importance of the knowledge gained from soils in the on agriculture, forestry, and other landscapes to the geologic record. Fossil soils, or “paleosols,” help us understand NRCS. He has been with USDA since 2004. the history of the Earth. This planner focuses on these soils in the geologic record. It provides examples of how paleosols can retain Dr. Tupas, a career member of the Senior Executive Service since 2014, served as the Deputy Director information about climates and ecosystems of the prehistoric for Bioenergy, Climate, and Environment, the Acting past. By understanding this deep history, we can obtain a better Deputy Director for Food Science and Nutrition, and understanding of modern climate, current biodiversity, and the Director for International Programs at USDA, ongoing soil formation and destruction. -
71St Annual Meeting Society of Vertebrate Paleontology Paris Las Vegas Las Vegas, Nevada, USA November 2 – 5, 2011 SESSION CONCURRENT SESSION CONCURRENT
ISSN 1937-2809 online Journal of Supplement to the November 2011 Vertebrate Paleontology Vertebrate Society of Vertebrate Paleontology Society of Vertebrate 71st Annual Meeting Paleontology Society of Vertebrate Las Vegas Paris Nevada, USA Las Vegas, November 2 – 5, 2011 Program and Abstracts Society of Vertebrate Paleontology 71st Annual Meeting Program and Abstracts COMMITTEE MEETING ROOM POSTER SESSION/ CONCURRENT CONCURRENT SESSION EXHIBITS SESSION COMMITTEE MEETING ROOMS AUCTION EVENT REGISTRATION, CONCURRENT MERCHANDISE SESSION LOUNGE, EDUCATION & OUTREACH SPEAKER READY COMMITTEE MEETING POSTER SESSION ROOM ROOM SOCIETY OF VERTEBRATE PALEONTOLOGY ABSTRACTS OF PAPERS SEVENTY-FIRST ANNUAL MEETING PARIS LAS VEGAS HOTEL LAS VEGAS, NV, USA NOVEMBER 2–5, 2011 HOST COMMITTEE Stephen Rowland, Co-Chair; Aubrey Bonde, Co-Chair; Joshua Bonde; David Elliott; Lee Hall; Jerry Harris; Andrew Milner; Eric Roberts EXECUTIVE COMMITTEE Philip Currie, President; Blaire Van Valkenburgh, Past President; Catherine Forster, Vice President; Christopher Bell, Secretary; Ted Vlamis, Treasurer; Julia Clarke, Member at Large; Kristina Curry Rogers, Member at Large; Lars Werdelin, Member at Large SYMPOSIUM CONVENORS Roger B.J. Benson, Richard J. Butler, Nadia B. Fröbisch, Hans C.E. Larsson, Mark A. Loewen, Philip D. Mannion, Jim I. Mead, Eric M. Roberts, Scott D. Sampson, Eric D. Scott, Kathleen Springer PROGRAM COMMITTEE Jonathan Bloch, Co-Chair; Anjali Goswami, Co-Chair; Jason Anderson; Paul Barrett; Brian Beatty; Kerin Claeson; Kristina Curry Rogers; Ted Daeschler; David Evans; David Fox; Nadia B. Fröbisch; Christian Kammerer; Johannes Müller; Emily Rayfield; William Sanders; Bruce Shockey; Mary Silcox; Michelle Stocker; Rebecca Terry November 2011—PROGRAM AND ABSTRACTS 1 Members and Friends of the Society of Vertebrate Paleontology, The Host Committee cordially welcomes you to the 71st Annual Meeting of the Society of Vertebrate Paleontology in Las Vegas. -
001-012 Primeras Páginas
PUBLICACIONES DEL INSTITUTO GEOLÓGICO Y MINERO DE ESPAÑA Serie: CUADERNOS DEL MUSEO GEOMINERO. Nº 9 ADVANCES IN TRILOBITE RESEARCH ADVANCES IN TRILOBITE RESEARCH IN ADVANCES ADVANCES IN TRILOBITE RESEARCH IN ADVANCES planeta tierra Editors: I. Rábano, R. Gozalo and Ciencias de la Tierra para la Sociedad D. García-Bellido 9 788478 407590 MINISTERIO MINISTERIO DE CIENCIA DE CIENCIA E INNOVACIÓN E INNOVACIÓN ADVANCES IN TRILOBITE RESEARCH Editors: I. Rábano, R. Gozalo and D. García-Bellido Instituto Geológico y Minero de España Madrid, 2008 Serie: CUADERNOS DEL MUSEO GEOMINERO, Nº 9 INTERNATIONAL TRILOBITE CONFERENCE (4. 2008. Toledo) Advances in trilobite research: Fourth International Trilobite Conference, Toledo, June,16-24, 2008 / I. Rábano, R. Gozalo and D. García-Bellido, eds.- Madrid: Instituto Geológico y Minero de España, 2008. 448 pgs; ils; 24 cm .- (Cuadernos del Museo Geominero; 9) ISBN 978-84-7840-759-0 1. Fauna trilobites. 2. Congreso. I. Instituto Geológico y Minero de España, ed. II. Rábano,I., ed. III Gozalo, R., ed. IV. García-Bellido, D., ed. 562 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system now known or to be invented, without permission in writing from the publisher. References to this volume: It is suggested that either of the following alternatives should be used for future bibliographic references to the whole or part of this volume: Rábano, I., Gozalo, R. and García-Bellido, D. (eds.) 2008. Advances in trilobite research. Cuadernos del Museo Geominero, 9. -
A GEOLOGIC RECORD of the FIRST BILLION YEARS of MARS HISTORY. John F. Mustard1 and James W. Head1 1Department of Earth, Environm
49th Lunar and Planetary Science Conference 2018 (LPI Contrib. No. 2083) 2604.pdf A GEOLOGIC RECORD OF THE FIRST BILLION YEARS OF MARS HISTORY. John F. Mustard1 and James W. Head1 1Department of Earth, Environmental and Planetary Sciences, Box 1846, Brown University, Provi- dence, RI 02912 ([email protected]) Introduction: A compelling record of the first bil- standing solar system evolution question is the exist- lion years of Mars geologic evolution is spectacularly ence, or not, of a period of heavy bombardment ≈500 presented in a compact region at the intersection of Myr after accretion of the terrestrial planets. Except Isidis impact basin and Syrtis Major volcanic province for the Moon, we have no definitive dates for basins (Fig. 1). In this well-exposed region is a well-ordered formed in the Solar System. Radiometric systems in stratigraphy of geologic units spanning Noachian to crystalline igneous rocks exposed by Isidis would like- Early Hesperian times [1]. Geologic units can be de- ly have been reset and thus contain evidence of the finitively associated with the Isidis basin-forming im- impact providing a key data point for understanding pact (≈3.9 Ga, [2]) as well as pristine igneous and basin forming processes in the Solar System. Further- aqueously altered Noachian crust that pre-date the more the Isidis basin impacted onto the rim of the hy- Isidis event. The rich collection of well defined units pothesized Borealis Basin [7]. Given this proximity spanning ≈500 Myr of time in a compact region is at- there is a possibility that some fragments may have tractive for the collection of samples. -
Raymond M. Alf Museum of Paleontology EDUCATOR's GUIDE
Raymond M. Alf Museum of Paleontology EDUCATOR’S GUIDE Dear Educator: This guide is recommended for educators of grades K-4 and is designed to help you prepare students for their Alf Museum visit, as well as to provide resources to enhance your classroom curriculum. This packet includes background information about the Alf Museum and the science of paleontology, a summary of our museum guidelines and what to expect, a pre-visit checklist, a series of content standard-aligned activities/exercises for classroom use before and/or after your visit, and a list of relevant terms and additional resources. Please complete and return the enclosed evaluation form to help us improve this guide to better serve your needs. Thank you! Paleontology: The Study of Ancient Life Paleontology is the study of ancient life. The history of past life on Earth is interpreted by scientists through the examination of fossils, the preserved remains of organisms which lived in the geologic past (more than 10,000 years ago). There are two main types of fossils: body fossils, the preserved remains of actual organisms (e.g. shells/hard parts, teeth, bones, leaves, etc.) and trace fossils, the preserved evidence of activity by organisms (e.g. footprints, burrows, fossil dung). Chances for fossil preservation are enhanced by (1) the presence of hard parts (since soft parts generally rot or are eaten, preventing preservation) and (2) rapid burial (preventing disturbance by bio- logical or physical actions). Many body fossils are skeletal remains (e.g. bones, teeth, shells, exoskel- etons). Most form when an animal or plant dies and then is buried by sediment (e.g. -
La Brea and Beyond: the Paleontology of Asphalt-Preserved Biotas
La Brea and Beyond: The Paleontology of Asphalt-Preserved Biotas Edited by John M. Harris Natural History Museum of Los Angeles County Science Series 42 September 15, 2015 Cover Illustration: Pit 91 in 1915 An asphaltic bone mass in Pit 91 was discovered and exposed by the Los Angeles County Museum of History, Science and Art in the summer of 1915. The Los Angeles County Museum of Natural History resumed excavation at this site in 1969. Retrieval of the “microfossils” from the asphaltic matrix has yielded a wealth of insect, mollusk, and plant remains, more than doubling the number of species recovered by earlier excavations. Today, the current excavation site is 900 square feet in extent, yielding fossils that range in age from about 15,000 to about 42,000 radiocarbon years. Natural History Museum of Los Angeles County Archives, RLB 347. LA BREA AND BEYOND: THE PALEONTOLOGY OF ASPHALT-PRESERVED BIOTAS Edited By John M. Harris NO. 42 SCIENCE SERIES NATURAL HISTORY MUSEUM OF LOS ANGELES COUNTY SCIENTIFIC PUBLICATIONS COMMITTEE Luis M. Chiappe, Vice President for Research and Collections John M. Harris, Committee Chairman Joel W. Martin Gregory Pauly Christine Thacker Xiaoming Wang K. Victoria Brown, Managing Editor Go Online to www.nhm.org/scholarlypublications for open access to volumes of Science Series and Contributions in Science. Natural History Museum of Los Angeles County Los Angeles, California 90007 ISSN 1-891276-27-1 Published on September 15, 2015 Printed at Allen Press, Inc., Lawrence, Kansas PREFACE Rancho La Brea was a Mexican land grant Basin during the Late Pleistocene—sagebrush located to the west of El Pueblo de Nuestra scrub dotted with groves of oak and juniper with Sen˜ora la Reina de los A´ ngeles del Rı´ode riparian woodland along the major stream courses Porciu´ncula, now better known as downtown and with chaparral vegetation on the surrounding Los Angeles.