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A New Species of Gaudryceras (Ammonoidea, Gaudryceratidae) from the Lowest Maastrichtian of Hokkaido, Japan and Its Biostratigraphic Implications
Paleontological Research, vol. 17, no. 1, pp. 47–57, April 1, 2013 © by the Palaeontological Society of Japan doi:10.2517/1342-8144-17.1.47 A new species of Gaudryceras (Ammonoidea, Gaudryceratidae) from the lowest Maastrichtian of Hokkaido, Japan and its biostratigraphic implications 1 2 YASUNARI SHIGETA AND TOMOHIRO NISHIMURA 1Department of Geology and Paleontology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan (e-mail: [email protected]) 2Hobetsu Museum, 80-6, Hobetsu, Mukawa, Hokkaido 054-0211, Japan Received May 11, 2012; Revised manuscript accepted August 12, 2012 Abstract. Gaudryceras hobetsense sp. nov. is described from the Nostoceras hetonaiense Zone (= lowest Maastrichtian) of the Hobetsu area, south-central Hokkaido, Northern Japan. Its shell is characterized by fine lirae on early whorls, distant rounded or flat-topped, narrow band-like ribs on middle and later whorls, and frequent collar-like ribs on later whorls. The occurrence of this new species strongly suggests the presence of lowest Maastrichtian strata in southern Alaska, and sheds light on the age delineation of the chronologically poorly defined beds in northern and eastern Hokkaido. Key words: ammonoid, Cretaceous, Gaudryceras, Hobetsu, Hokkaido, Maastrichtian Introduction age (Shigeta et al., 2012). Because of the successive occurrence of several species and their restricted strati- The genus Gaudryceras de Grossouvre, 1894 is char- graphic ranges, Gaudryceras is an ideal ammonoid for acterized by an evolute shell with a wide, shallow umbi- precise biostratigraphic correlation of Maastrichtian licus, rounded venter and various ribbing styles. strata in the North Pacific realm. Although species of the genus ranging in age from late The biostratigraphic zonation scheme established for Albian to Maastrichtian are known worldwide (Kennedy the lowest Maastrichtian of Japan is based mainly on and Klinger, 1979; Hoffmann, 2010), their typical occur- ammonoids and inoceramid bivalves from the Hakobuchi rence is in the Tethyan and Indo-Pacific realms. -
Palaeontology and Biostratigraphy of the Lower Cretaceous Qihulin
Dissertation Submitted to the Combined Faculties for the Natural Sciences and for Mathematics of the Ruperto-Carola University of Heidelberg, Germany for the degree of Doctor of Natural Sciences presented by Master of Science: Gang Li Born in: Heilongjiang, China Oral examination: 30 November 2001 Gedruckt mit Unterstützung des Deutschen Akademischen Austauschdienstes (Printed with the support of German Academic Exchange Service) Palaeontology and biostratigraphy of the Lower Cretaceous Qihulin Formation in eastern Heilongjiang, northeastern China Referees: Prof. Dr. Peter Bengtson Prof. Pei-ji Chen This manuscript is produced only for examination as a doctoral dissertation and is not intended as a permanent scientific record. It is therefore not a publication in the sense of the International Code of Zoological Nomenclature. Abstract The purpose of the study was to provide conclusive evidence for a chronostratigraphical assignment of the Qihulin Formation of the Longzhaogou Group exposed in Mishan and Hulin counties of eastern Heilongjiang, northeastern China. To develop an integrated view of the formation, all collected fossil groups, i.e. the macrofossils (ammonites and bivalves) and microfossils (agglutinated foraminifers and radiolarians) have been studied. The low-diversity ammonite fauna consists of Pseudohaploceras Hyatt, 1900, and Eogaudryceras Spath, 1927, which indicate a Barremian–Aptian age. The bivalve fauna consists of eight genera and 16 species. The occurrence of Thracia rotundata (J. de C: Sowerby) suggests an Aptian age. The agglutinated foraminifers comprise ten genera and 16 species, including common Lower Cretaceous species such as Ammodiscus rotalarius Loeblich & Tappan, 1949, Cribrostomoides? nonioninoides (Reuss, 1836), Haplophragmoides concavus (Chapman, 1892), Trochommina depressa Lozo, 1944. The radiolarians comprise ten genera and 17 species, where Novixitus sp., Xitus cf. -
The Gaudryceratid Ammonoids from the Upper Cretaceous of the James Ross Basin, Antarctica
The gaudryceratid ammonoids from the Upper Cretaceous of the James Ross Basin, Antarctica MARÍA E. RAFFI, EDUARDO B. OLIVERO, and FLORENCIA N. MILANESE Raffi, M.E., Olivero, E.B., and Milanese, F.N. 2019. The gaudryceratid ammonoids from the Upper Cretaceous of the James Ross Basin, Antarctica. Acta Palaeontologica Polonica 64 (3): 523–542. We describe new material of the subfamily Gaudryceratinae in Antarctica, including five new species: Gaudryceras submurdochi Raffi and Olivero sp. nov., Anagaudryceras calabozoi Raffi and Olivero sp. nov., Anagaudryceras subcom- pressum Raffi and Olivero sp. nov., Anagaudryceras sanctuarium Raffi and Olivero sp. nov., and Zelandites pujatoi Raffi and Olivero sp. nov., recorded in Santonian to Maastrichtian deposits of the James Ross Basin. The early to mid-Campan- ian A. calabozoi Raffi and Olivero sp. nov. exhibits a clear dimorphism, expressed by marked differences in the ornament of the adult body chamber. Contrary to the scarcity of representative members of the subfamily Gaudryceratinae in the Upper Cretaceous of other localities in the Southern Hemisphere, the Antarctic record reveals high abundance and di- versity of 15 species and three genera in total. This highly diversified record of gaudryceratins is only comparable with the Santonian–Maastrichtian Gaudryceratinae of Hokkaido, Japan and Sakhalin, Russia, which yields a large number of species of Anagaudryceras, Gaudryceras, and Zelandites. The reasons for a similar, highly diversified record of the Gaudryceratinae in these distant and geographically nearly antipodal regions are not clear, but we argue that they prob- ably reflect a similar paleoecological control. Key words: Ammonoidea, Phylloceratida, Gaudryceratinae, Lytoceratoidea, Cretaceous, Antarctica. María E. -
131. a Note on the Japanese Ammonites Belonging to the Caudryceratidae*
666 [Vol. 18, 131. A Note on the Japanese Ammonites Belonging to the Caudryceratidae*. By Taturo MATUMOTO. (Comm. by T. KATO,M.I.A., Dec. 12, 1942.) The Japanese fossils of the Gaudryceratidae, one of the important families of Cretaceous Ammonoidea, have been studied by H. Yabe and other Japanese paleontologists. I also had the opportunity of studying the material in connection with the biostratigraphic investi- gation on the Cretaceous deposits of Hokkaido and Karahuto. The following is a short note on the result of my study.' The numerous Japanese specimens so far examined are classified as follows. Family Gaydryceratidae. Genus Parajaubertella; Matumoto nov. P. kawakitana Matumoto nov. (genotype) Genus Anagaudryceras, Shimizu emend. A, sacya (Fortes) em. (genotype) A. sacya var. plicatocostata Matumoto MS. A. limatum (Yabe) A. yokoyamai (Yabe) A, ryugasense Matumoto MS. A. madraspatanum (Blanford) Genus Gaudryceras, Grossouvre em. G. denseplicatum (Jimbo) G. denseplicatum var. intermedia (Yabe) em. G. denseplicatum var. kawadai Matumoto MS. G. tenuiliratum Yabe em. G. tenuiliratum var. frequence Matumoto MS. G. tenuiliratum var. substriata Matumoto MS. G. tenuiliratum var. ornata Yabe G. striatum (limbo) (=? G, sachalinensis (Schmidt)) G. striatum var. paucistriata Matumoto MS. G. striatum var. picta Yabe G. striatum var. lata Matumoto MS. G. crassicostatum (Jimbo) G. subcostatum Matumoto MS. Genus Zelandites, Marshall em. Matumoto Z. odiensis (Kossmat) Z, odiensis var. lateumbilicata Matumoto MS. Z. mihoensis Matumoto Z. mihoensis var. capricornus Matumoto MS. Z. kawadai (limbo) em. Z. varuna (Forties) var. japonica Matumoto Z. sp. (n, sp. ?) A close investigation of the ontogenetic development enables us to elucidate the proper systematic position of species and genera. -
Ammonite Faunal Dynamics Across Bio−Events During the Mid− and Late Cretaceous Along the Russian Pacific Coast
Ammonite faunal dynamics across bio−events during the mid− and Late Cretaceous along the Russian Pacific coast ELENA A. JAGT−YAZYKOVA Jagt−Yazykova, E.A. 2012. Ammonite faunal dynamics across bio−events during the mid− and Late Cretaceous along the Russian Pacific coast. Acta Palaeontologica Polonica 57 (4): 737–748. The present paper focuses on the evolutionary dynamics of ammonites from sections along the Russian Pacific coast dur− ing the mid− and Late Cretaceous. Changes in ammonite diversity (i.e., disappearance [extinction or emigration], appear− ance [origination or immigration], and total number of species present) constitute the basis for the identification of the main bio−events. The regional diversity curve reflects all global mass extinctions, faunal turnovers, and radiations. In the case of the Pacific coastal regions, such bio−events (which are comparatively easily recognised and have been described in detail), rather than first or last appearance datums of index species, should be used for global correlation. This is because of the high degree of endemism and provinciality of Cretaceous macrofaunas from the Pacific region in general and of ammonites in particular. Key words: Ammonoidea, evolution, bio−events, Cretaceous, Far East Russia, Pacific. Elena A. Jagt−Yazykova [[email protected]], Zakład Paleobiologii, Katedra Biosystematyki, Uniwersytet Opolski, ul. Oleska 22, PL−45−052 Opole, Poland. Received 9 July 2011, accepted 6 March 2012, available online 8 March 2012. Copyright © 2012 E.A. Jagt−Yazykova. This is an open−access article distributed under the terms of the Creative Com− mons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. -
Mayrhofen Mayrhofen – Pertisau Pertisau – Steinberg Am Rofan Steinberg Am Rofan – Alpbach
Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 Nauders – Pfunds Pfunds – Landeck Landeck – Imst Imst – Lermoos Lermoos – Seefeld in Tirol Seefeld in Tirol – Fulpmes hm hm hm hm hm hm 2.000 2.000 1.200 2.000 2.000 2.000 01 02 1.500 1.500 1.000 1.500 1.500 1.500 04 03 05 1.000 1.000 800 1.000 1.000 1.000 06 10 20 30 40 km 10 20 30 40 50 60km 10 20 10 20 30 40 50km 10 20 30 40 50 km 10 20 30 40 50 60 70km 30km Close to the Italy/Switzerland/Austria border, Stage 1 serves up This stage takes you to the highest point along the entire route. This section is one of two stages that does not utilise the Ride Imster Bergbahnen Chair Lift to the top and embark This ride across lovely Gaistal Valley, which is encircled by This stage leads for a short distance through the Inn Valley, a brilliant expert route. Trail users wanting to travel Segment 1 Sweat it out on two uphill climbs that require a good level of mountain lifts, but is a leisurely mountain bike route. Offering on a mellow descent back down to the valley. The climb spectacular, rugged mountain walls, is a true gem. The route before the climb begins towards the Brenner Pass. After an but minimize their singletrack have an alternative to ride along fitness and take you from Inntal Valley to the sunny upland wonderful views of the mountains of the northern Inn Valley, atop Marienbergjoch Col into Außerfern Area will test your climbs towards Seefeld in sweeping hairpins. -
CENOMANIAN CEPHALOPODS from the GLAUCONITIC LIMESTONE SOUTHEAST of ESFAHAN, IRAN Boreal Middle Cretaceous Ammonite Faunas Have L
ACT A PAL A EON T 0 LOG ICA POLONICA Vol. 24 1919 No. J W. J. KENNEDY, M. R. CHAHIDA AND M. A. DJAFARIAN CENOMANIAN CEPHALOPODS FROM THE GLAUCONITIC LIMESTONE SOUTHEAST OF ESFAHAN, IRAN KENNEDY W. J., CHAHIDA M. R. and DJAFARIAN M. A.: Cenomanian cepha lopods from the Glauconitic Limestone southeast of Esfahan, Iran. Acta Palaeont Polonica, 24, I, 3-50, April 20, 1979. The Glauconitic Limestone of the area southeast of Esfahan yields a rich Ceno manian cephalopod fauna of Boreal aspect, including species of Anglonautllus, Stomohamites, Sciponoceras, Idiohamites, Ostllngoceras. Mariella, Hypoturrllites. Turrllites, Scaphites, Puzosia, Austiniceras, Hyphoplltes, Schloenbachia. Mantelll ceras, Sharpeiceras and Acompsoceras, most of which represent new records for the area. The age of this fauna Is unequivocally Lower Cenomanian, and can be correlated in detail at a distance of 5000 km with parts of the northwest European Hypoturrll!tes carcitanens!s and Mante!liceras saxbit Zones. The material studied includes none of the Upper Albian, Middle and Upper Cenomanian elements re corded from the unit by previous workers. The fauna Is numerically dominated by acanthoceratids, in marked contrast to the Schloenbachia-dominated faunas of northwestern Europe. This suggests the area lay In the southern parts of the Boreal Realm, where Schloenbachia Is known to become progressively scarcer, as Is supported by proximity to the Zagros line marking the juncture of Asian and Arabian plates. Key w 0 r d s: Boreal Ammonites, Esfahan, Lower Cenomanian, Glauconitic Li mestone. W. J. Kennedy, Geological Co!lections. University Museum. Parks Road. England; M. R. Chahida and M. A. -
Bulletin of the British Museum (Natural History), Geology
. Cretaceous faunas from Zululand and Natal, South Africa. The ammonite family Gaudryceratidae W. J. Kennedy_ Department of Geology and Mineralogy, University of Oxford, Parks Road, Oxford OX1 3PR H. C. Klinger South African Museum, P.O. Box 61, Cape Town 8000, Republic of South Africa Contents Synopsis 122 Introduction . 122 Location of specimens .......... 123 Field localities 1 23 Dimensions of specimens 123 Suture terminology . .. .. 123 Systematic palaeontology 123 Family Gaudryceratidae Spath 123 Genus Eogaudryceras Spath 123 Subgenus Eogaudryceras Spath 1 24 Eogaudryceras {Eogaudryceras) shimizui skoenbergense Collignon .. 124 Eogaudryceras {Eogaudryceras) hertleini (Wiedmann) . .. 125 Subgenus Eotetragonites Breistroffer 126 Eogaudryceras {Eotetragonites) raspaili raspaili Breistroffer ... 126 Eogaudryceras {Eotetragonites) umbilicostriatus Collignon .. 127 Genus Gaudryceras de Grossouvre . .. .. ... 128 Gaudryceras cf. varagurense Kossmat .. .. 129 Gaudryceras stefaninii Venzo . .. 130 Gaudryceras varicostatum van Hoepen . 133 Gaudryceras tenuiliratum Yabe .... .. 136 Gaudryceras denseplicatum (Jimbo) 140 1 ''Gaudryceras' sigcau van Hoepen . 142 'Gaudryceras' spp. .......... 142 Genus Anagaudryceras Shimizu . .. 142 Anagaudryceras buddha (Forbes) ... ... 146 Anagaudryceras subsacya (Marshall) .. ... 152 Anagaudryceras politissimum (Kossmat) . ... .. 154 Anagaudryceras subtilineatum (Kossmat) .. .. 155 Anagaudryceras pulchrum (Crick) 157 Genus Vertebrites Marshall 159 Vertebrites kayei (Forbes) ..... 160 Genus Zelandites Marshall -
Sepkoski, J.J. 1992. Compendium of Fossil Marine Animal Families
MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. Department of the Geophysical Sciences University of Chicago Chicago, Illinois 60637 Milwaukee Public Museum Contributions in Biology and Geology Rodney Watkins, Editor (Reviewer for this paper was P.M. Sheehan) This publication is priced at $25.00 and may be obtained by writing to the Museum Gift Shop, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Orders must also include $3.00 for shipping and handling ($4.00 for foreign destinations) and must be accompanied by money order or check drawn on U.S. bank. Money orders or checks should be made payable to the Milwaukee Public Museum. Wisconsin residents please add 5% sales tax. In addition, a diskette in ASCII format (DOS) containing the data in this publication is priced at $25.00. Diskettes should be ordered from the Geology Section, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Specify 3Y. inch or 5Y. inch diskette size when ordering. Checks or money orders for diskettes should be made payable to "GeologySection, Milwaukee Public Museum," and fees for shipping and handling included as stated above. Profits support the research effort of the GeologySection. ISBN 0-89326-168-8 ©1992Milwaukee Public Museum Sponsored by Milwaukee County Contents Abstract ....... 1 Introduction.. ... 2 Stratigraphic codes. 8 The Compendium 14 Actinopoda. -
Ecohydrological Sensitivity to Climatic Variables: Dissecting the Water Tower of Europe
Research Collection Doctoral Thesis Ecohydrological sensitivity to climatic variables: dissecting the water tower of Europe Author(s): Mastrotheodoros, Theodoros Publication Date: 2019 Permanent Link: https://doi.org/10.3929/ethz-b-000348653 Rights / License: In Copyright - Non-Commercial Use Permitted This page was generated automatically upon download from the ETH Zurich Research Collection. For more information please consult the Terms of use. ETH Library Diss.- No. ETH 25949 Ecohydrological sensitivity to climatic variables: dissecting the water tower of Europe A thesis submitted to attain the degree of DOCTOR OF SCIENCES of ETH ZURICH (Dr. sc. ETH Zurich) presented by THEODOROS MASTROTHEODOROS Diploma in Civil Engineering, National Technical University of Athens born on 14.06.1990 citizen of Greece accepted on the recommendation of Prof. Dr. Peter Molnar, examiner Prof. Dr. Paolo Burlando, co-examiner Prof. Dr. Christina (Naomi) Tague, co-examiner Prof. Dr. Valeriy Ivanov, co-examiner Dr. Simone Fatichi, co-examiner 2019 i ii Dedicated to my parents and grandparents and especially to my grandmother Eleni, who left us the very first day of my PhD studies iii iv Abstract The water balance in mountain regions describes the relations between precipitation, snow accumulation and melt, evapotranspiration and soil moisture and determines the availability of water for runoff in downstream areas. Climate change is affecting the water budget of mountains at a fast pace and it has thus become a priority for hydrologists to quantify the vulnerability of each hydrological component to climate change, in order to assess the availability of water in the near future. However, our incomplete understanding of mountain hydrology implies that our knowledge about the future water supply of billions of people worldwide is limited. -
High-Level Classification of the Nautiloid Cephalopods: a Proposal for the Revision of the Treatise Part K
Swiss Journal of Palaeontology (2019) 138:65–85 https://doi.org/10.1007/s13358-019-00186-4 (0123456789().,-volV)(0123456789().,- volV) REGULAR RESEARCH ARTICLE High-level classification of the nautiloid cephalopods: a proposal for the revision of the Treatise Part K 1 2 Andy H. King • David H. Evans Received: 4 November 2018 / Accepted: 13 February 2019 / Published online: 14 March 2019 Ó Akademie der Naturwissenschaften Schweiz (SCNAT) 2019 Abstract High-level classification of the nautiloid cephalopods has been largely neglected since the publication of the Russian and American treatises in the early 1960s. Although there is broad general agreement amongst specialists regarding the status of nautiloid orders, there is no real consensus or consistent approach regarding higher ranks and an array of superorders utilising various morphological features has been proposed. With work now commencing on the revision of the Treatise Part K, there is an urgent need for a methodical and standardised approach to the high-level classification of the nautiloids. The scheme proposed here utilizes the form of muscle attachment scars as a diagnostic feature at subclass level; other features (including siphuncular structures and cameral deposits) are employed at ordinal level. We recognise five sub- classes of nautiloid cephalopods (Plectronoceratia, Multiceratia, Tarphyceratia nov., Orthoceratia, Nautilia) and 18 orders including the Order Rioceratida nov. which contains the new family Bactroceratidae. This scheme has the advantage of relative simplicity (it avoids the use of superorders) and presents a balanced approach which reflects the considerable morphological diversity and phylogenetic longevity of the nautiloids in comparison with the ammonoid and coleoid cephalopods. -
Bedrock Geology of Round Rock and Surrounding Areas, Williamson and Travis Counties, Texas
Bedrock Geology of Round Rock and Surrounding Areas, Williamson and Travis Counties, Texas Todd B. Housh Bedrock Geology of Round Rock and Surrounding Areas, Williamson and Travis Counties, Texas Todd B. Housh Copyright 2007 Todd B Housh, PhD, PG Round Rock, TX 78664 Cover photograph: The “Round Rock,” an erosional pedestal of Edward’s limestone that marked the low‐water crossing of Brushy Creek by the Chisholm Trail. 2 Table of Contents Introduction 5 Tectonic History 6 Previous Studies 8 Other Geologic Constraints 9 Stratigraphy 9 Comanche Series Fredericksburg Group Walnut Formation 10 Comanche Peak 10 Edwards 12 Kiamichi 13 Washita Group Georgetown 14 Del Rio 15 Buda 16 Gulf Series Woodbine Group Pepper 16 Eagle Ford Group 17 Austin Group 19 Taylor Group 21 Tertiary and Quaternary Systems Plio‐Pleistocene to Recent 22 Structure 23 Acknowledgements 27 Bibliography 28 Appendix 1. Compilation of sources of other geologic information. 34 Appendix 2. Localities of note to observe important geologic 40 features in the Round Rock Area. Appendix 3. Checklist of Cretaceous and Pleistocene fossils 45 3 4 Bedrock Geology of Round Rock and Surrounding Areas, Williamson and Travis Counties, Texas Todd B. Housh Introduction The purpose of this study was to produce a map of the bedrock geology of the city of Round Rock, Texas and its environs and to evaluate the geologic structure of the area. Most of the City of Round Rock lies within the Round Rock 7.5 minute quadrangle, Williamson County, Texas1, although parts of the city also lie within the Pflugerville West 7.5 minute quadrangle, Travis County, Texas2 and the Hutto 7.5 minute quadrangle, Williamson County, Texas3.