Upper Campanian Ammonites from the Gschliefgraben
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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. -
Dinoflagellate Cysts and Ammonoids from Upper Cretaceous Sediments of the Pemberger Formation (Krappfeld, Carinthia, Austria)
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Annalen des Naturhistorischen Museums in Wien Jahr/Year: 2009 Band/Volume: 110A Autor(en)/Author(s): Soliman Ali, Suttner Thomas, Lukeneder Alexander, Summesberger Herbert Artikel/Article: Dinoflagellate cysts and Ammonoids from Upper Cretaceous sediments of the Pemberger Formation (Krappfeld, Carinthia, Austria). 401-421 ©Naturhistorisches Museum Wien, download unter www.biologiezentrum.at Ann. Naturhist. Mus. Wien 110 A 401–421 Wien, Jänner 2009 Dinoflagellate cysts and Ammonoids from Upper Cretaceous sediments of the Pemberger Formation (Krappfeld, Carinthia, Austria) Ali SOLIMAN 1 2, Thomas J. SUTTNER 1, Alexander LUKENEDER 3 and Herbert SUMME S BERGER 3 (With 3 plates, 2 figures, 1 table) Manuscript submitted on September 8th 2008, the revised manuscript on November 10th 2008 Abstract Dinoflagellate cysts (dinocysts) and acritarchs are described for the first time from the Pemberger Forma- tion of the Gosau Group (Krappfeld, Carinthia, Austria). The dinoflagellate cyst assemblage is quite diverse and well preserved and compositionally similar to those described from Upper Cretaceous strata in north- ern Italy, Germany and the Czech Republic. Many stratigraphically significant taxa are documented, among them Alisogymnium nucleases, Cannosphaeropsis utinensis, Florentinia mayii, Isabelidinium cooksoniae and Xenascus ceratioides. They support a Campanian to Maastrichtian age. Ammonoids observed in this study are instead rare within the investigated section: although several taxa were previously described to occur in this area, only Pachydiscus (Pachydiscus) haldemsis and some indeterminable fragments were found in the present study. Key words: Dinoflagellata, Ammonoidea, biostratigraphy, Upper Cretaceous. Zusammenfassung Zysten von Dinoflagellaten (Dinozysten) und Arcritarchen werden zum ersten Mal aus der Pemberger- Formation der Gosau-Gruppe (Krappfeld, Kärnten, Österreich) beschrieben. -
Download Curriculum Vitae
NEIL H. LANDMAN CURATOR, CURATOR-IN-CHARGE AND PROFESSOR DIVISION OF PALEONTOLOGY HIGHEST DEGREE EARNED Ph.D. AREA OF SPECIALIZATION Evolution, life history, and systematics of externally shelled cephalopods EDUCATIONAL EXPERIENCE Ph.D. in Geology, Yale University, 1982 M. Phil. in Geology, Yale University, 1977 M.S. in Earth Sciences, Adelphi University, 1975 B.S. in Mathematics, summa cum laude, Polytechnic University of New York, 1972 PREVIOUS EXPERIENCE IN DOCTORAL EDUCATION FACULTY APPOINTMENTS Adjunct Professor, Department of Biology, City College Adjunct Professor, Department of Geology, Brooklyn College GRADUATE ADVISEES Susan Klofak, Biology, CUNY, 1999-present Krystal Kallenberg, Marine Sciences, Stony Brook, 2003-present GRADUATE COMMITTEES Christian Soucier, Biology, Brooklyn College, 2004-present Krystal Kallenberg, Marine Sciences, Stony Brook, 2003-present Yumiko Iwasaki, Geology, CUNY, 2000-2009 Emily Allen, Geology, University of Chicago, 2002-2005 Susan Klofak, Biology, CUNY, 1996-present Claude Monnet, University of Zurich, presently Sophie Low, Geology, Harvard University RESEARCH GRANT SUPPORT Kosciuszko Foundation. Comparative study of ammonite faunas from the United States Western Interior and Polish Lowland. Post-doc: Izabela Ploch, Geological Museum of Polish Geological Institute. 2011. NSF Grant MR1-R2 (Co-PI): Acquisition of a High Resolution CT-Scanner at the American Museum of Natural History: 2010-2013. NSF Grant No. DBI 0619559 (Co-PI): Acquisition of a Variable Pressure SEM at the AMNH: 2006-2009 NSF Grant No. EAR 0308926 (PI): Collaborative Research: Paleobiology, paleoceanography, and paleoclimatology of a time slice through the Western Interior Seaway: 2003-2006 National Science Foundation, Collaborative Research: Soft Tissues and Membrane Preservation in Permian Cephalopods, $40,000, February 1, 2002-January 31, 2006. -
First Record of Non-Mineralized Cephalopod Jaws and Arm Hooks
Klug et al. Swiss J Palaeontol (2020) 139:9 https://doi.org/10.1186/s13358-020-00210-y Swiss Journal of Palaeontology RESEARCH ARTICLE Open Access First record of non-mineralized cephalopod jaws and arm hooks from the latest Cretaceous of Eurytania, Greece Christian Klug1* , Donald Davesne2,3, Dirk Fuchs4 and Thodoris Argyriou5 Abstract Due to the lower fossilization potential of chitin, non-mineralized cephalopod jaws and arm hooks are much more rarely preserved as fossils than the calcitic lower jaws of ammonites or the calcitized jaw apparatuses of nautilids. Here, we report such non-mineralized fossil jaws and arm hooks from pelagic marly limestones of continental Greece. Two of the specimens lie on the same slab and are assigned to the Ammonitina; they represent upper jaws of the aptychus type, which is corroborated by fnds of aptychi. Additionally, one intermediate type and one anaptychus type are documented here. The morphology of all ammonite jaws suggest a desmoceratoid afnity. The other jaws are identifed as coleoid jaws. They share the overall U-shape and proportions of the outer and inner lamellae with Jurassic lower jaws of Trachyteuthis (Teudopseina). We also document the frst belemnoid arm hooks from the Tethyan Maastrichtian. The fossils described here document the presence of a typical Mesozoic cephalopod assemblage until the end of the Cretaceous in the eastern Tethys. Keywords: Cephalopoda, Ammonoidea, Desmoceratoidea, Coleoidea, Maastrichtian, Taphonomy Introduction as jaws, arm hooks, and radulae are occasionally found Fossil cephalopods are mainly known from preserved (Matern 1931; Mapes 1987; Fuchs 2006a; Landman et al. mineralized parts such as aragonitic phragmocones 2010; Kruta et al. -
Lower Jaws of Two Species of Menuites (Pachydiscidae, Ammonoidea) from the Middle Campanian (Upper Cretaceous) in the Soya Area, Northern Hokkaido, Japan
Bull. Natl. Mus. Nat. Sci., Ser. C, 45, pp. 19–27, December 27, 2019 Lower jaws of two species of Menuites (Pachydiscidae, Ammonoidea) from the middle Campanian (Upper Cretaceous) in the Soya area, northern Hokkaido, Japan Kazushige Tanabe1* and Yasunari Shigeta2 1 University Museum, The University of Tokyo, Hongo 7–3–1, Bunkyo Ward, Tokyo 113–0033, Japan 2 Department of Geology and Paleontology, National Museum of Nature and Science, 4–1–1 Amakubo, Tsukuba, Ibaraki 305–0005, Japan * Author for correspondence: [email protected] Abstract The lower jaws of two pachydiscid ammonites Menuites soyaensis (Matsumoto and Miyau- chi) and Menuites sp. are described on the basis of two specimens from the middle Campanian (Upper Cretaceous) in the Soya area of northern Hokkaido, Japan. They are preserved in situ in the body cham- ber and characterized by a widely open outer lamella with a nearly flat rostral portion. The outer lamella consists of an inner “chitinous” layer sculptured by a median furrow in the anterior to mid-portions and an outer calcareous layer with prismatic microstructure. The lower jaw features of the two Menuites spe- cies are shared by other species of the Pachydiscidae described in previous works, indicating that they are diagnostic characters of this family. In view of the shovel-like shape without a pointed rostrum, the lower jaws of the two Menuites species were likely used as a scoop to feed on microorganisms. Key words: pachydiscid ammonites, middle Campanian, lower jaw, Soya area (Hokkaido) found together retaining their original life orienta- Introduction tion. Based on such well-preserved specimens and Both modern and extinct cephalopod mollusks their comparison with the jaws of modern cephalo- possess a well-developed jaw apparatus that con- pods, previous authors (e.g. -
The Upper Cretaceous Dimorphic Pachydiscid Ammonite Menuites in the Western Interior of the United States
The Upper Cretaceous Dimorphic Pachydiscid Ammonite Menuites in the Western Interior of the United States U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1533 AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the current-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Survey publications re leased prior to the current year are listed in the most recent annual"Price and Availability List" Publications that may be listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" may no longer be available. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices listed below. BY MAlL OVER THE COUNTER Books Books and Maps Professional Papers, Bulletins, Water-Supply Papers, Tech Books and maps of the U.S. Geological Survey are available niques of Water-Resources Investigations, Circulars, publications over the counter at the following U.S. Geological Survey offices, all of general interest (such as leaflets, pamphlets, booklets), single of which are authorized agents of the Superintendent of Docu copies of Earthquakes & Volcanoes, Preliminary Determination of ments. Epicenters, and some miscellaneous reports, including some of the foregoing series that have gone out of print at the Superintendent of Documents, are obtainable by mail from • ANCHORAGE, Alaska-Rm. -
The Barremian Heteromorph Ammonite Dissimilites from Northern Italy: Taxonomy and Evolutionary Implications
The Barremian heteromorph ammonite Dissimilites from northern Italy: Taxonomy and evolutionary implications ALEXANDER LUKENEDER and SUSANNE LUKENEDER Lukeneder, A. and Lukeneder, S. 2014. The Barremian heteromorph ammonite Dissimilites from northern Italy: Taxon- omy and evolutionary implications. Acta Palaeontologica Polonica 59 (3): 663–680. A new acrioceratid ammonite, Dissimilites intermedius sp. nov., from the Barremian (Lower Cretaceous) of the Puez area (Dolomites, northern Italy) is described. Dissimilites intermedius sp. nov. is an intermediate form between D. dissimilis and D. trinodosum. The new species combines the ribbing style of D. dissimilis (bifurcating with intercalating single ribs) with the tuberculation style of D. trinodosum (trituberculation on entire shell). The shallow-helical spire, entirely comprising single ribs intercalated by trituberculated main ribs, is similar to the one of the assumed ancestor Acrioceras, whereas the increasing curvation of the younger forms resembles similar patterns observed in the descendant Toxoc- eratoides. These characters support the hypothesis of a direct evolutionary lineage from Acrioceras via Dissimilites to Toxoceratoides. D. intermedius sp. nov. ranges from the upper Lower Barremian (Moutoniceras moutonianum Zone) to the lower Upper Barremian (Toxancyloceras vandenheckii Zone). The new species allows to better understand the evolu- tion of the genus Dissimilites. The genus appears within the Nicklesia pulchella Zone represented by D. duboise, which most likely evolved into D. dissimilis. In the Kotetishvilia compressissima Zone, two morphological forms developed: smaller forms very similar to Acrioceras and forms with very long shaft and juvenile spire like in D. intermedius sp. nov. The latter most likely gave rise to D. subalternatus and D. trinodosum in the M. -
Ancyloceratina
Heteromorph Ammonites: Ancyloceratina Anatomy: Ammonites were a diverse group of Not much about Ancyloceratina sea-dwelling spiral shelled molluscs anatomy can be determined from the first arising in the Devonian thought fossil specimen. However, we do to be most closely related to modern know that Ancyloceratina is most cephalopods [1] [4]. Ammonites commonly five-lobed [2]. We also survived three mass extinctions, know that they had strange shell finally dying at the K/Pg Extinction. forms, commonly uncoiled [1]. Their Ammonites ancestrally have a strange uncoiled spiral shape would planospiral (simple spiral) shell be far less advantageous to structure (we call these swimming than the tightly coiled monomorphs), but throughout their planospiral shape [1]. Because of history they have also developed Monomorph [4] Ancycloceratina [4] this, we believe that heteromorph more strange and complex shell ammonites would have been very forms [1] [4]. These ammonites are poor swimmers [1]. Ancyloceratina called Ancyloceratina or heteromorph Caspianites wassiliewskyi: also had a lot of variety in shell ammonites, and they first arose in ● Heteromorphic origin of the monomorph shape [2]. the late Jurassic, becoming more Deshayesitoidea [2]. common and geographically diverse ● Crescent-like cross section replaced in the during the Cretaceous [1]. While first whorl [2]. Ancyloceratina are ancestrally ● Reduced first umbilical lobe and the return heteromorphs, there are some of a four-lobed structure, transitioning to a species that are convergent planospiral shell [2]. monomorphs. ● Appearance of umbilical perforations [2] The crescent-like cross-section of the first whorl in the suborder Ancyloceratina is reduced to a rounded cross-section. A Retrieved from Ebel-k five-lobed primary suture is typical for most ancyloceratids, though it may be unstable [3]. -
Paleoecology of Late Cretaceous Methane Cold-Seeps of the Pierre Shale, South Dakota
City University of New York (CUNY) CUNY Academic Works All Dissertations, Theses, and Capstone Projects Dissertations, Theses, and Capstone Projects 10-2014 Paleoecology of Late Cretaceous methane cold-seeps of the Pierre Shale, South Dakota Kimberly Cynthia Handle Graduate Center, City University of New York How does access to this work benefit ou?y Let us know! More information about this work at: https://academicworks.cuny.edu/gc_etds/355 Discover additional works at: https://academicworks.cuny.edu This work is made publicly available by the City University of New York (CUNY). Contact: [email protected] Paleoecology of Late Cretaceous methane cold-seeps of the Pierre Shale, South Dakota by Kimberly Cynthia Handle A dissertation submitted to the Graduate Faculty in Earth and Environmental Sciences in partial fulfillment of the requirements for the degree of Doctor of Philosophy, The City University of New York 2014 i © 2014 Kimberly Cynthia Handle All Rights Reserved ii This manuscript has been read and accepted for the Graduate Faculty in Earth and Environmental Sciences in satisfaction of the dissertation requirement for the degree of Doctor of Philosophy. Neil H. Landman____________________________ __________________ __________________________________________ Date Chair of Examining Committee Harold C. Connolly, Jr.___ ____________________ __________________ __________________________________________ Date Deputy - Executive Officer Supervising Committee Harold C. Connolly, Jr John A. Chamberlain Robert F. Rockwell The City University of New York iii ABSTRACT The Paleoecology of Late Cretaceous methane cold-seeps of the Pierre Shale, South Dakota By Kimberly Cynthia Handle Adviser: Neil H. Landman Most investigations of ancient methane seeps focus on either the geologic or paleontological aspects of these extreme environments. -
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. -
Scaphitid Ammonite Correlation of the Late Maastrichtian Deposits in Poland and Denmark
Scaphitid ammonite correlation of the Late Maastrichtian deposits in Poland and Denmark Machalski, M. 1996. Scaphitid ammonite correlation of the Late Maastrichtian deposits in Poland and Denmark. - Acta Palaeontologica Polonica 41,4,369-383. Evolutionary changes in the ribbing density on body chambers in samples of the scaphitid ammonite Hopbscaphites constrictus (J.Sowerby, 1817) are used for time correlation of the Kazimierz Opoka (Late Maastrichtian, Belemnella kazimiro- uiensis Zone, Poland) with the Danish White Chalk succession. It is proposed that the upper part of the Kazimierz Opoka corresponds to the lower part of the B. kazimiroviensis Zone in Denmark while the lower part of the unit probably corresponds to the upper part of the Belemnitellajunior Zone in Denmark. This correlation, if correct, suggests diachronism of the lower boundary of the B. kazimirouiensis Zone. K e y w o r d s : Maastrichtian, Scaphitidae, ammonites, Poland, Denmark, strati- graphy. Marcin Machalski, Instytut Paleobiologii PAN, al. ~wirkii Wigury 93, PL-02-089 Warszawa, Poland Introduction The Kazirnierz Opoka is an informal lithostratigraphical term (Wyrwicka 1980) for the Late Maastrichtian siliceous chalk unit exposed along the Vistula River near Kazimierz Dolny (called also 'Kazimierz' or 'Kazimierz- -on-Vistula'), Central Poland (Fig. 1A-C). This unit yields possibly one of the richest fossil assemblages known from the European Maastrichtian (see Abdel-Gawad 1986 and Radwariski 1996 for comprehensive review). Ammonites from the Kazimierz Opoka were described by Eopuski (1911 ), Poiaryska (1953), and Blaszkiewicz ( 1980). Radwafiski ( 1996) described predation traces on Hoploscaphites constrictus (J. Sowerby, 1817) whereas Marcinowski & Radwanski (1996) commented on two pachydiscids from the top of Kazimierz Opoka [the specimen identified by them as Anapachydiscus cf.