August 2019 Newsletter
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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. -
University of California Riverside
UNIVERSITY OF CALIFORNIA RIVERSIDE Exploring Variation in Late Cambrian Trilobite Dikelocephalus Pygidia Using Landmark-Based Geometric Morphometrics A Thesis submitted in partial satisfaction of the requirements for the degree of Master of Science in Geological Sciences by Ernesto Ezequiel Vargas-Parra June 2019 Thesis Committee: Dr. Nigel C. Hughes, Chairperson Dr. Mary L. Droser Dr. Peter M. Sadler Copyright by Ernesto Ezequiel Vargas-Parra 2019 The Thesis of Ernesto Ezequiel Vargas-Parra is approved: Committee Chairperson University of California, Riverside ABSTRACT OF THE THESIS Exploring Variation in Late Cambrian Trilobite Dikelocephalus Pygidia Using Landmark-Based Geometric Morphometrics by Ernesto Ezequiel Vargas-Parra Master of Science, Graduate Program in Geological Sciences University of California, Riverside, June 2019 Dr. Nigel C. Hughes, Chairperson Pygidial shape variation of the trilobite morphospecies Dikelocephalus minnesotensis (late Cambrian, northern Mississippi Valley) is assessed using landmark-based geometric morphometrics including the use of semilandmarks. Relative warp analyses of pygidial shape show that although pygidial morphospace occupation by D. minnesotensis from the St. Lawrence Formation shows some regionalization by collection, variance within collections is notable and overlap in shape occurs among almost all collections. Morphological characters that dominate the structure of pygidial shape variation include the base of the posterolateral spine, proportions of the border, and form of the pleural ribs. Between collections and through time, a continuous gradient of morphotypes suggests a mosaic pattern of variation. Ontogenetic variation plays iv little role in shape variance both within individual collections and in the sample as a whole. The designation of St. Lawrence Formation D. minnesotensis as a single, highly variable morphospecies stands when analyzed with landmark (and semilandmark) based geometric morphometrics. -
An Inventory of Trilobites from National Park Service Areas
Sullivan, R.M. and Lucas, S.G., eds., 2016, Fossil Record 5. New Mexico Museum of Natural History and Science Bulletin 74. 179 AN INVENTORY OF TRILOBITES FROM NATIONAL PARK SERVICE AREAS MEGAN R. NORR¹, VINCENT L. SANTUCCI1 and JUSTIN S. TWEET2 1National Park Service. 1201 Eye Street NW, Washington, D.C. 20005; -email: [email protected]; 2Tweet Paleo-Consulting. 9149 79th St. S. Cottage Grove. MN 55016; Abstract—Trilobites represent an extinct group of Paleozoic marine invertebrate fossils that have great scientific interest and public appeal. Trilobites exhibit wide taxonomic diversity and are contained within nine orders of the Class Trilobita. A wealth of scientific literature exists regarding trilobites, their morphology, biostratigraphy, indicators of paleoenvironments, behavior, and other research themes. An inventory of National Park Service areas reveals that fossilized remains of trilobites are documented from within at least 33 NPS units, including Death Valley National Park, Grand Canyon National Park, Yellowstone National Park, and Yukon-Charley Rivers National Preserve. More than 120 trilobite hototype specimens are known from National Park Service areas. INTRODUCTION Of the 262 National Park Service areas identified with paleontological resources, 33 of those units have documented trilobite fossils (Fig. 1). More than 120 holotype specimens of trilobites have been found within National Park Service (NPS) units. Once thriving during the Paleozoic Era (between ~520 and 250 million years ago) and becoming extinct at the end of the Permian Period, trilobites were prone to fossilization due to their hard exoskeletons and the sedimentary marine environments they inhabited. While parks such as Death Valley National Park and Yukon-Charley Rivers National Preserve have reported a great abundance of fossilized trilobites, many other national parks also contain a diverse trilobite fauna. -
EASY ACCESS to DOUBTFUL TAXONOMIC DECISIONS [Paleontological Society Theme Session, Toronto, Oct
EASY ACCESS TO DOUBTFUL TAXONOMIC DECISIONS [Paleontological Society Theme Session, Toronto, Oct. 28, 1998] Colin W. Stearn The conference on Paleontology in the 21st century (convened at Frankfurt) identified databases as a primary concern for paleontologists in the next millennium (Gastaldo, et al, 1998). The General Assembly of Paleo21 unanimously adopted a strong resolution supporting the role of systematics and the need for accessible databases upon which interdisciplinary projects can rely. In the nineties decade the possibility of rapid retrieval of information on paleontological systematics by a world-wide constituency has become a reality. Many specialist paleontologists are compiling taxonomic information into databases that are potentially accessible through the internet. The Paleontological Institute at the University of Kansas has been developing a general retrieval system under the name "Paleobank" for a number of years and through this program much of the information contained in the Treatise of Invertebrate Paleontology will be made available in database form. These databases and their search programs promise to open vast amounts of taxonomic, biostratigraphic, paleoecologic, paleogeographic, diversity, and related information to anyone with a computer, a phone line and a server. In the past a specialist might spend a lifetime assembling a library of reprints and photocopies of the systematic literature on the group of fossils he or she was specializing in studying. For most fossil groups nearly all of this literature would be in one of five scientific languages: English, French, German, Russian, and Chinese. Very few specialists are able to read all these languages or afford translation of all the species descriptions in large monographs. -
UC Riverside UC Riverside Electronic Theses and Dissertations
UC Riverside UC Riverside Electronic Theses and Dissertations Title Exploring Variation in Late Cambrian Trilobite Dikelocephalus Pygidia Using Landmark- Based Geometric Morphometrics Permalink https://escholarship.org/uc/item/0998d8w7 Author Vargas-Parra, Ernesto Ezequiel Publication Date 2019 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA RIVERSIDE Exploring Variation in Late Cambrian Trilobite Dikelocephalus Pygidia Using Landmark-Based Geometric Morphometrics A Thesis submitted in partial satisfaction of the requirements for the degree of Master of Science in Geological Sciences by Ernesto Ezequiel Vargas-Parra June 2019 Thesis Committee: Dr. Nigel C. Hughes, Chairperson Dr. Mary L. Droser Dr. Peter M. Sadler Copyright by Ernesto Ezequiel Vargas-Parra 2019 The Thesis of Ernesto Ezequiel Vargas-Parra is approved: Committee Chairperson University of California, Riverside ABSTRACT OF THE THESIS Exploring Variation in Late Cambrian Trilobite Dikelocephalus Pygidia Using Landmark-Based Geometric Morphometrics by Ernesto Ezequiel Vargas-Parra Master of Science, Graduate Program in Geological Sciences University of California, Riverside, June 2019 Dr. Nigel C. Hughes, Chairperson Pygidial shape variation of the trilobite morphospecies Dikelocephalus minnesotensis (late Cambrian, northern Mississippi Valley) is assessed using landmark-based geometric morphometrics including the use of semilandmarks. Relative warp analyses of pygidial shape show that although pygidial morphospace occupation by D. minnesotensis from the St. Lawrence Formation shows some regionalization by collection, variance within collections is notable and overlap in shape occurs among almost all collections. Morphological characters that dominate the structure of pygidial shape variation include the base of the posterolateral spine, proportions of the border, and form of the pleural ribs. -
Systematics, Environment, and Biogeography of Some Late Cambrian and Early Ordovician Trilobites from Eastern New York State
Systematics, Environment, and Biogeography of Some Late Cambrian and Early Ordovician Trilobites From Eastern New York State GEOLOGICAL SURVEY PROFESSIONAL PAPER 834 Systematics, Environment, and Biogeography of Some Late Cambrian and Early Ordovician Trilobites From Eastern New York State By MICHAEL E. TAYLOR and ROBERT B. HALLEY GEOLOGICAL SURVEY PROFESSIONAL PAPER 834 The environmental setting and regional significance of two trilobite assemblages from shelf deposits of the fVhitehall Formation in the southern Champlain Valley UNITED STATES GOVERNl\1ENT PRINTING OFFICE, WASHINGTON 197 4 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 73-60031 S For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price $1.35 (paper covers) Stock Number 2401-02459 CONTENTS Page Page Abstract 1 Systematic paleontology ------------------------ 18 Introduction 1 Introductory statement --------------------- 18 Objectives ---------------------------------- 1 Class Trilobita Walch, 1771 ----------------- 19 Geologic setting ---------------------------- 1 Family Catillicephalidae Raymond, 1938 -- 19 Previous work ------------------------------ 2 Genus Acheilops Ulrich, 1931 -------- 19 Fossil collections ---------------------------- 2 Genus Stenoc.hilina Ulrich, 1931 ------- 20 Acknowledgments --_- ------------------------ 2 Family Heterocaryonidae Hupe, 1953 _____ _ 21 Biostratigraphy --------------------------------- -
November 2018 Newsletter
November 2018 Volume 72, No. 4 Promoting public interest and educational support in the geological sciences THE GEOLOGICAL SOCIETY OF MINNESOTA News Volunteer opportunities, From the President’s Desk… field trips, Greetings, fellow members of GSM. Fall has arrived, and so has our lecture season. As I write this in mid-October before leaving for Rome & Sicily, we have already lectures, and had three excellent lectures, including the Fall Banquet and Annual Meeting in public service, September at U Garden Restaurant. Average attendance for those three was 96, with about 10 new attendees at each. So we are off to a great start. Thank you, since 1938 Steve Erickson, for putting together another excellent program. As we approach winter, please review our lecture cancellation policy on the GSM web site. Let’s hope this winter is far different than last, so we don’t need to cancel or postpone any lectures. GSM’s Our field trip program for 2018 has pretty much ended, although I will schedule another tour of St. Anthony Falls Lab this fall if there is sufficient interest. Our last two field trips were fossil hunting near Rockford, Iowa, led by GSM members Roger Benepe and Steve Willging; and walking tours of downtown St. Paul, led 80th by members Steve Erickson, Kate Clover, and Roger Benepe. Thanks to all these leaders for sharing your expertise with us. Look for articles elsewhere in this issue on both of these trips. You can find a summary of our full field trip schedule for Year 2018 (and many prior years) on our web site. -
2013 Programs (PDF)
Historic seattle 2 0 1 3 p r o g r a m s www.historicseattle.org what’s Welcome to seattle’s premier educational program for inside: lovers of buildings and Heritage. learning 3 from historic Each year, Pacific Northwest residents enjoy our popular lectures, sites private home, local and out-of-town tours, and special events that open bring you closer to understanding and appreciating the rich and 4 to view varied built environment that we seek to preserve and protect with out-of-town your help. 5 tours 2013 programs at a glance 6 design arts January May preserving 23 Learning from Historic Sites 14 Special Event 8 utility Women’s University Club Fifth Annual Preservation Awards Ceremony February 22 Local Tour First Hill Neighborhood local tours 7 Design Arts California Arts & Crafts Architecture Film Nights 10 Beautiful Simplicity: Arts & Crafts Architecture in June Southern California 8 Local Tour preserving Shared Walls Capitol Hill Apartment Tour 11 your old 14 Design Arts house California Arts & Crafts Architecture Film Nights 29 Local Tour Designing with Nature: Arts & Crafts Architecture Sand Point Naval Air Station special in Northern California 12 event July 21 Design Arts 13 Out-of-Town Tour California Arts & Crafts Architecture Film Nights Historic Everett Pursuing Beauty: The Architecture of Cover l to r, top to Bernard Maybeck 27 Learning from Historic Sites bottom: 2011 Building Eastside Heritage Center Renovation Fair (Eugenia March Woo); Aerial view of Holy 6 Preserving Utility 31 Local Tour Names Academy (Above Historic -
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··w 111111111~113 0318 n~ ~~1mf 00028~r1~1~11111r1r11111111111 8282 1990 ·Report 282 ·... Volume 1 Minnesota Department. ofNatu:ral Resource.s · This document is made available electronically by the Minnesota Legislative Reference Library as part of an ongoing digital archiving project. http://www.leg.state.mn.us/lrl/lrl.asp (Funding for document digitization was provided, in part, by a grant from the Minnesota Historical & Cultural Heritage Program.) •ti • • •e • • • • • • • Neither the State of Minnesota nor the Department of r--Ja-turar. R¢sources, nor any of their • · employees, nor any of their contract~rs, subcontractors,: o! thei~ employe~s, makes anywarranty, express or implied; or assumes any legal liability o_r respo11sibility for the accuracy; co111preteness • or usefulness of any inf-0rmatiqn, apparatus, prOduct or process disclosed, or represents_ that .its use would not infringe privately owned rights: · · • - ·- ' Reference to a Company or Product nan1.e doe~ notimply approval or recommendation of rh.e • proCluct-by the St~te of Minnesota or the Department of Natural Resources to th.e· <;xclusio11, of others that mayJ:neet specifications., - · · · • • ·•t --· • • •t •• • • • • • • • Inventory of Industrial Mineral Pits and • Quarries in Minnesota • •lt It lt •It By • S. L Nelson, M. W. Oberhelman, and D. J. Olson •It • • . 1990 • • Report282 • Volume 1 of 2 • • Minnesota Department of Natural Resources • Division of Minerals • William C. Brice, Director • • • • • • • • • • • • • • • • ••• • • • • • •ti fl t • • • • Contents: Volume 1 • Abstract 1 • Introduction 3 • Methodology . 3 • Commodities Reported 4 • Report Format 5 • Record Format 6 • Sources of Information 7 • Summary .... 8 -... Acknowledgements . 24 • Records of Active Pits and Quarries .... 25 • Clay/Shale . -
Natural History
TE:E GEOLOGICAL AND NATURAL HISTORY SURVEY OF MINNESOTAr THE FIRST ANNUAL REPORT FOR THE YEAR 1872 By N. H. WINCHELL, State Geologist. SUBMITTED TO THE PRESIDE~T :C\F'"iR~~O~;,:'RIJ;OF REGENTS DECEMBER 31: ·187~. ' :'ts~cbND"" ~bHf6'~~l ,~ "'. " &>~" .. /' "., ,:~, ~1 ~ '"" '\ ~ -' " MINNEAPOLIS: JOHNSON, SMITH & HARRISON. 1884. NOTE.-This edition is identical with the original publication, except in typography, and in the lists of elevations on various railroads, which have beell revised and corrected and referred to sea-level, through lake Superior at 602 feet. The pagination begins with number 17, in order to agree with the original.-N. H. WINCHELL. " .. "" . ." ...... -.: "'.: :: "'.: "'.. : : ::: ... ,::~.:: .. : ..... ,," " " .. " " o " " .e ,,"" 00 o 000 .. " "" " ,," o • ::! :": 0·-· .. : 00 " " .. " .. .. 000 ",,".. " .. o 0 o ".. ".. ".. "'." o 0 "'. " ",," " .. "" .. "' .. " ....... """ ,,"'.- " " " :-. .. ::":: : ": " " .. .." ..... " ,," "'. : ".: : : ".: : :.. : " " .. ".. " .. "" "" " .. : • • to :: : : !.- : : :".:: """ "......... .." .. """ .......... ADDRESS. ST, ANTHON"Y, MINN" t Dec. 31, 1872. f Hon. J, S, Pillsbury, president of the board of regents of the Uni ve1'sity of J1. innesota : DEAR BIR :-1 have the honor herewith to present the first annual report of progrel"S on the geological and natural history survey of the state, required by the provisions of the law creating the same. The field work covered by this report is that performed by myself alone between the first of September and the closing of the season, on the 12th day of November, by the first fall of snow. The means at my disposal not admitting of the employment of as sistants, it has only been possible to make a general reconnoissance of the state by visiting those parts accessible by railroad. In that way I have succeeded in making a connected section of observed strata from the trap anti granite rocks, which lie at the base of our geological system, to the Galena limestone, in the Lower Silurian, including also about forty f('et of the latter. -
Intraspecific Variability in Paradoxidid Trilobites from the Purujosa Trilobite Assemblage (Middle Cambrian, Northeast Spain)
Intraspecific variability in paradoxidid trilobites from the Purujosa trilobite assemblage (middle Cambrian, northeast Spain) JORGE ESTEVE Esteve, J. 2014. Intraspecific variability in paradoxidid trilobites from the Purujosa trilobite assemblage (middle Cam- brian, northeast Spain). Acta Palaeontologica Polonica 59 (1): 215–240. Eccaparadoxides? pradoanus and Eccaparadoxides mediterraneus are both widespread trilobite species described from the middle Cambrian of the Mediterranean region. Analysis based on a pooled sample of 500 specimens demonstrates that many of the characters that have been used to define these species show continuous variations, some of which are related to ontogeny. In addition, morphometric analyses of metric characters show that the two species cannot be dis- tinguished on the basis of these characters either. Many of the characters studied herein are widely used in definitions and descriptions of other paradoxidid species, which suggests that the taxonomic classification of other paradoxidids may be oversplit. Key words: Arthropoda, Trilobita, Paradoxididae, morphological plasticity, taphonomy, Cambrian, Murero Forma- tion, Spain. Jorge Esteve [[email protected]], Área de Paleontología, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain and University of West Bohemia, Center of Biology, Geosci- ences and Environment, Klatovska, 51. 306 14 Pilsen, Czech Republic. Revised version received 12 January 2012, accepted 21 June 2012, available online 27 June 2012. Copyright © 2014 J. Esteve. This is an open-access article distributed under the terms of the Creative Commons At- tribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. enormis Sdzuy, 1968, Eccaparadoxides granulosus Courtes- Introduction sole, 1973, Paradoxides (Eccaparadoxides) sulcatus Liñán and Gozalo, 1986, Eccaparadoxides kozaki Kordule, 1999. -
Carleton Geology Newsletter Volume XXXVII 2012
Carleton Geology Newsletter Volume XXXVII 2012 Published by The Department of Geology Carleton College Northfi eld, MN 55057 The cover drawing is the 2012 Geology T-shirt design by Taylor LaCasse ‘13 The Carleton Geology Newsletter is edited by Jonathon Cooper Layout by Ellen Haberoth Photo Submissions: Pictures submitted to the Newsletter can be either in traditional print or electronic formats, but electronic pictures should be medium to high resolution in order to reproduce well on paper. The fi le size of electronic pictures should be several hundred KB or more. If you have a change of address or other correction to our address list you may edit it yourself and make sure your listing is done the way you prefer at http://apps.carleton.edu/alumni/directory/ If you have forgotten your username or password call the Alumni Aff airs Offi ce at 1-800-729-2586. Or You may notify: Alumni Records Carleton College Northfi eld, MN 55057 (507) 222-4195 E-mail: [email protected] Department of Geology Carleton College One North College Street Northfi eld, MN 55057 June 2012 Dear Friends of the Geology Department, On behalf of the Geology Department, I send you greetings, best wishes and another edition of our Carleton Geology Newsletter. The faculty is busy and productive in their research, teaching and service. You will fi nd detailed accomplishments of each faculty in the pages that follow. As always, there were many fi eld experiences for students and faculty this year. In the fall, we had an over night fi eld trip to Taylors Falls where over 40 students participated.