DOCSLIB.ORG

Gosau Group, Upper Cretaceous, Austria) 122-141 Austrian Journal of Earth Sciences Vienna 2017 Volume 110/1 122 - 141 DOI: 10.17738/Ajes.2017.0009

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Gosau Group, Upper Cretaceous, Austria) 122-141 Austrian Journal of Earth Sciences Vienna 2017 Volume 110/1 122 - 141 DOI: 10.17738/Ajes.2017.0009 ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Austrian Journal of Earth Sciences Jahr/Year: 2017 Band/Volume: 110_1 Autor(en)/Author(s): Summesberger Herbert, Kennedy William James, Skoumal Peter Artikel/Article: On late Santonian ammonites from the Hofergraben Member (Gosau Group, Upper Cretaceous, Austria) 122-141 Austrian Journal of Earth Sciences Vienna 2017 Volume 110/1 122 - 141 DOI: 10.17738/ajes.2017.0009 On late Santonian ammonites from the Hofergraben Member (Gosau Group, Upper Cretaceous, Austria)_______________________________ Herbert SUMMESBERGER1)*), William J. KENNEDY2) & Peter SKOUMAL3) 1) Museum of Natural History Vienna, Burgring 7, 1010 Vienna, Austria; 2) Oxford University, Museum of Natural History, Oxford OX1 3PW, United Kingdom; 3) Bastiengasse 56, 1180 Vienna, Austria; *) Corresponding author, [email protected] KEYWORDS Ammonites; Late Cretaceous; Northern Calcareous Alps; Gosau Group; Hofergraben Member; Austria Abstract 11 ammonite taxa are described from the upper Santonian of the Hofergraben site (Gosau Group; Upper Austria): Pachydisci- dae gen. et sp. indet. juv., Placenticeras polyopsis (Dujardin, 1837), Placenticeras paraplanum Wiedmann, 1978, Placenticeras aff. maherndli Summesberger, 1979, Texanites quinquenodosus Redtenbacher, 1873, Eulophoceras jacobi Hourcq, 1949, Jouaniceras hispanicum Wiedmann, 1994, ? Jouaniceras sp., Eubostrychoceras acuticostatum (d’Orbigny, 1842), Glyptoxoceras crispatum (Mo- berg, 1885), Baculites fuchsi Redtenbacher, 1873. Jouaniceras hispanicum Wiedmann, 1994 and Eubostrychoceras acuticostatum (d’Orbigny, 1842) are recorded for the first time from the Gosau Group confirming the close connection with the Upper Creta- ceous of the Corbières (France: Kennedy in Kennedy et al. 1995). 11 Taxa Ammoniten aus dem oberen Santonium des Hofer- grabens (Gosau-Gruppe; Ober- österreich) werden beschrieben: Pachydiscidae gen. et sp. indet. juv., Placenticeras polyopsis (Du- jardin, 1837), Placenticeras para- planum Wiedmann, 1978, Plac- enticeras aff. maherndli Summes- berger, 1979, Texanites quinque- nodosus Redtenbacher, 1873, Eulophoceras jacobi Hourcq, 1949, Jouaniceras hispanicum Wiedmann, 1994, ? Jouaniceras sp., Eubostrychoceras acuticos- tatum (d’Orbigny, 1842), Glyp- toxoceras crispatum (Moberg, 1885), Baculites fuchsi Redten- bacher, 1873. Jouaniceras his- panicum Wiedmann, 1994 und Eubostrychoceras acuticostatum (d’Orbigny, 1842) werden zum ersten Mal aus der Gosau-Grup- pe erwähnt und bestätigen die nahe Beziehung zur Oberkreide der Corbières (Frankreich: Ken- nedy in Kennedy et al., 1995)._ 1. Introduction Figure 1: A. Schematic geological map of the Eastern Alps. Occurrences of Gosau Group sediments The Gosau Group successions (black), brick symbol: Northern Calcareous Alps. After Summesberger et al. (2017a). B. Local sketch map of parts of the Gosau Basin, with modifications after Summesberger et al. (2017a) indicating the locali- of the Northern Calcareous Alps ties mentioned in the text._______________________________________________________________ of Austria are well known for 122 Herbert SUMMESBERGER, William J. KENNEDY & Peter SKOUMAL their richness in macrofossils and for their contributions to Gosau Subgroup were deposited under shallow marine con- Upper Cretaceous stratigraphy (e.g. Summesberger, 1985; ditions. The highly fossiliferous Hofergraben Member and the Wagreich et al., 2009).________________________________ Sandkalkbank Member of the Hochmoos Formation record The late Santonian Sandkalkbank Member of the Hochmoos the end of this shallow marine period, which was followed in Formation is a distinct marker bed of about 20 metres thick- the Campanian by increasing subsidence and the deep wa- ness. It extends from the junction of the “elliptica” Graben (Gerth, ter deposits of the Upper Gosau Subgroup (Ressen Forma- 1961, fig. 3) with the Neffgraben (Russbach, Salzburg), conti- tion, Nierental Formation). The Maastrichtian to Eocene Zwie- nues along the slope of the Schattau (Russbach, Salzburg) turns selalm Formation marks the end of marine sedimentation around the Bibereck where it appears in the “Finstergraben- wandl”. On the opposite side of the Gosau valley it loses its dis- tinct character and terminates in the Hofergraben (Gosau, Up- per Austria). The fauna of the Sandkalkbank Member was described by Wiedmann (1978: ammonites), Summesberger (1979, 1980: ammonites), Koll- mann (1980: gastropods), Dhondt (1984: bivalves) and Summes- berger et al. (2017c: ammonites). The Hofergraben Member of the Hochmoos Formation, under- lying the Sandkalkbank Mem- ber, is well-known for the ex- cellent preservation of abun- dant bivalves (e.g. the type spe- cimen of Cordiceramus muelleri (Petrascheck, 1906); fide Dhondt, 1987) and gastropods (Zekeli, 1852; Zittel, 1865–1866; Felix, 1908). In this paper cephalopods from the Hofergraben are descri- bed augmenting the previously described late Santonian cepha- lopod faunas noted above. 2. Geological Setting The Hofergraben locality is si- tuated in the Upper Austrian part of the Gosau Basin. The Go- sau Basin exposes a sedimenta- ry sequence, the Gosau Group, that ranges from Upper Turo- nian to Eocene. It begins with terrestrial conglomerates (the Kreuzgraben Formation) and coal bearing strata of the Neu- alm (Salzburg), where the am- monite Barroisiceras haberfell- neri (Hauer, 1858) indicates a late Turonian age. The early San- tonian Grabenbach and Hoch- Figure 2: Composite section of the Gosau Group in the Gosau area indicating the position of the Hofer- moos formations of the Lower graben Member (with revisions after Summesberger et al. 2017c)._______________________________ 123 On late Santonian ammonites from the Hofergraben Member (Gosau Group, Upper Cretaceous, Austria) (Wagreich and Decker, 2001). fig. 58- 61; pl. 15, figs 62-66. 1995 Placenticeras maherndli Summesberger; Kennedy in Ken- 3. Repositories of specimens nedy et al., p. 411, pl. 22, fig. 7. NHMW Natural History Museum, Vienna, Austria GBA Geologische Bundesanstalt (Geological Survey of Type: the holotype, by original designation, is MA 77/ 2, form Austria, former k. k. Geologische Reichsanstalt), Vien- A, the original of Summesberger, 1979 (pl. 14, fig. 58, 59).___ na, Austria Material: SK/HO/1995/7, SK/HO/1989/6, NHMW/2016/0191/0001 MA Wolf-Peter Maherndl collection, Bad Ischl, Austria Description: SK/HO/1995/7 (Fig. 7/4, 5), SK/HO/1989/6 and SK Dr. Peter Skoumal collection, Vienna, Austria NHMW/2016/0191/0001 are fragments of internal moulds GPIT Geologisch Paläontologisches Institut der Universi- with large areas of the original shell preserved. NHMW/2016/ tät Tübingen_______________________________ 0191/0001 is heavily crushed. SK/HO/ 1995/7 is the best pre- LPMP Laboratoire du Muséum de Paléontologie, Paris served individual. All three specimens are deformed into an ellipse. Measurements (Tab. 2) are restored._____________ 4. Systematic Palaeontology Class Cephalopoda Cuvier, 1797 D Wh Wb U U% Order Ammonoidea Zittel, 1884 rest rest SK/HO/1995/7 60 30 14.4 15 25% Suborder Ammonitina Hyatt, 1889 rest rest rest NHMW/2016/0191/1 60 30 -- 15 25% Superfamily Desmoceratoidea Zittel, 1895 rest rest rest Table 2: Measurement of Placenticeras aff. maherndli Summesberger, Family Pachydiscidae Spath, 1922 1979 from the Hofergraben site. Deformed dimensions are restored (rest). Pachydiscus sp. indet., juv. Fig. 6/5; Tab. 1 SK/HO/1995/7 and NHMW/2016/0191/0001 are apparently Description: SK/HO/1996/8 (Fig. 6/5) is a small internal mould adult individuals with the body chamber preserved. They are with large areas of adherent shell preserved. Coiling is involute, laterally flattened to a certain degree. Coiling is moderately the specimen deformed into an ellipse by compaction.The involute, the umbilicus comprising about 25% of the diame- expansion rate is high. Close to the adapertural end the whorl ter. The umbilical depth increases through ontogeny. The section is almost circular. The umbilicus is deep and narrow, umbilical wall is steep and outwards inclined, the umbilical the umbilical shoulder rounded. About ten irregular coarse shoulder narrowly rounded. SK/HO/1989/6 is a fragment of ribs arise on the umbilical shoulder in the form of elongated an umbilicus, with clearly visible umbilical tubercles; these bullae, some of which cross the flank and extend over the are less distinct in SK/HO/1995/7. This specimen shows cla- venter, others end around mid-flank. There are no constric- vate ventrolateral tubercles close to the ventrolateral edge. tions or ventral tubercles; the sutures are not visible._______ The flanks are slightly convex, the venter concave between Discussion: The specimen is interpreted as a juvenile pachydis- ventrolateral ridges. The flanks are covered with very fine fal- cid, which we are unable to link to adult specimens of the same coid lirae, increasing in strength towards the aperture. They age. It is not a microconch, as it lacks ventrolateral tubercles._ are prorsiradiate at the umbilical shoulder, sweeping over the Occurrence: Known only from the Hofergraben (Gosau, Upper flank in a wide convexity before finally flexing back towards Austria). the ventrolateral edge in a prorsiradiate concavity. SK/HO/ 1995/7 shows partially visible, crowded sutures.___________ Discussion: Placenticeras aff. maherndli differs from Placenti- DDrest Wh Wb U U% ceras maherndli Summesberger, 1979 in its fine lirate ribbing
Load more

Recommended publications
  • Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas
    Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas GEOLOGICAL SURVEY PROFESSIONAL PAPER 1253 Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas By WILLIAM A. COBBAN and E. A. MEREWETHER Molluscan Fossil Record from the Northeastern Part of the Upper Cretaceous Seaway, Western Interior By WILLIAM A. COBBAN Lower Upper Cretaceous Strata in Minnesota and Adjacent Areas-Time-Stratigraphic Correlations. and Structural Attitudes By E. A. M EREWETHER GEOLOGICAL SURVEY PROFESSIONAL PAPER 1 2 53 UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1983 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data Cobban, William Aubrey, 1916 Stratigraphy and paleontology of mid-Cretaceous rocks in Minnesota and contiguous areas. (Geological Survey Professional Paper 1253) Bibliography: 52 p. Supt. of Docs. no.: I 19.16 A. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior by William A. Cobban. B. Lower Upper Cretaceous strata in Minnesota and adjacent areas-time-stratigraphic correlations and structural attitudes by E. A. Merewether. I. Mollusks, Fossil-Middle West. 2. Geology, Stratigraphic-Cretaceous. 3. Geology-Middle West. 4. Paleontology-Cretaceous. 5. Paleontology-Middle West. I. Merewether, E. A. (Edward Allen), 1930. II. Title. III. Series. QE687.C6 551.7'7'09776 81--607803 AACR2 For sale by the Distribution Branch, U.S.
    [Show full text]
  • Vol. 3 No.3 September 1999
    ISSN 1342-8144 Formerly Transactions and Proceedings of the Palaeontological Society of Japan Vol. 3 No.3 September 1999 The Palaeontological Society of Japan Co-Editors Kazushige Tanabe and Tomoki Kase Language Editor Martin Janal (New York, USA) Associate Editors Jan Bergstrom (Swedish Museum of Natural History, Stockholm, Sweden), Alan G. Beu (Institute of Geological and Nuclear Sciences, Lower Hutt, New Zealand), Satoru Chiba (Tohoku University, Sendai, Japan), Yoichi Ezaki (Osaka City University, Osaka, Japan), James C. Ingle, Jr. (Stanford University, Stanford, USA), Kunio Kaiho (Tohoku University, Sendai, Japan), Susan M. Kidwell (University of Chicago, Chicago, USA), Hiroshi Kitazato (Shizuoka University, Shizuoka, Japan), Naoki Kohno (National Science Museum, Tokyo, Japan), Neil H. Landman (Amemican Museum of Natural History, New York, USA), Haruyoshi Maeda (Kyoto University, Kyoto, Japan), Atsushi Matsuoka (Niigata University, Niigata, Japan), Rihito Morita (Natural History Museum and Institute, Chiba, Japan), Harufumi Nishida (Chuo University, Tokyo, Japan), Kenshiro Ogasawara (University of Tsukuba, Tsukuba, Japan), Tatsuo Oji (University of Tokyo, Tokyo, Japan), Andrew B. Smith (Natural History Museum, London, Great Britain), Roger D.K. Thomas (Franklin and Marshall College, Lancaster, USA), Katsumi Ueno (Fukuoka University, Fukuoka, Japan), Wang Hongzhen (China University of Geosciences, Beijing, China), Yang Seong Young (Kyungpook National University, Taegu, Korea) Officers for 1999-2000 President: Kei Mori Councillors:
    [Show full text]
  • 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.
    [Show full text]
  • Evolution of the Pachychilidae TROSCHEL, 1857 (Chaenogastropoda, Cerithioidea) – from the Tethys to Modern Tropical Rivers 41
    44 44 he A Rei Series A/ Zitteliana An International Journal of Palaeontology and Geobiology Series A /Reihe A Mitteilungen der Bayerischen Staatssammlung für Pa lä on to lo gie und Geologie 44 An International Journal of Palaeontology and Geobiology München 2004 Zitteliana Umschlag 44 1 18.01.2005, 10:04 Uhr Zitteliana An International Journal of Palaeontology and Geobiology Series A/Reihe A Mitteilungen der Bayerischen Staatssammlung für Pa lä on to lo gie und Geologie 44 CONTENTS/INHALT REINHOLD R. LEINFELDER & MICHAEL KRINGS Editorial 3 DIETRICH HERM Herbert HAGN † 5 KAMIL ZÁGORŠEK & ROBERT DARGA Eocene Bryozoa from the Eisenrichterstein beds, Hallthurm, Bavaria 17 THORSTEN KOWALKE Evolution of the Pachychilidae TROSCHEL, 1857 (Chaenogastropoda, Cerithioidea) – from the Tethys to modern tropical rivers 41 HERBERT W. SCHICK The stratigraphical signifi cance of Cymaceras guembeli for the boundary between Platynota Zone and Hypselocyclum Zone, and the correlation of the Swabian and Franconian Alb 51 GÜNTER SCHWEIGERT, RODNEY M. FELDMANN & MATTHIAS WULF Macroacaena franconica n. sp. (Crustaceae: Brachyura: Raninidae) from the Turonian of S Germany 61 JÜRGEN KRIWET & STEFANIE KLUG Late Jurassic selachians (Chondrichthyes, Elasmobranchii) from southern Germany: Re-evaluation on taxonomy and diversity 67 FELIX SCHLAGINTWEIT Calcareous green algae from the Santonian Hochmoos Formation of Gosau (Northern Calcareous Alps, Austria, Lower Gosau Group) 97 MICHAEL KRINGS & HELMUT MAYR Bassonia hakelensis (BASSON) nov. comb., a rare non-calcareous
    [Show full text]
  • Cretaceous Fossils from the Chesapeake and Delaware Canal
    Cretaceous S;cial Publication No. 18 Fossils from the Chesapeake and Delaware Canal A Guide for Students and Collectors Edward M. Lauginiger / /~ / CRETACEOUS FOSSILS FROM THE CHESAPEAKE AND DELAWARE CANAL: A GUIDE FOR STUDENTS AND COLLECTORS By Edward M. Lauginiger Biology Teacher Academy Park High School Sharon Hill, Pennsylvania September 1988 Reprinted 1997 CONTENTS Page INTRODUCTION. • 1 ACKNOWLEDGMENTS 2 PREVIOUS STUDIES. 3 FOSSILS AND FOSSILIZATION 5 Requirements for Fossilization 6 Types of Fossilization 7 GEOLOGY •• 10 CLASSIFICATON OF FOSSILS. 12 Kingdom Monera • 13 Kindgom Protista 1 3 Kingdom Plantae. 1 4 Kingdom Animalia 15 Phylum Porifera 15 Phylum Cnidaria (Coelenterata). 16 Phylum Bryozoa. 16 Phylum Brachiopoda. 17 Phylum Mollusca • 18 Phylum Annelida •. 22 Phylum Arthropoda • 23 Phylum Echinodermata. 24 Phylum Chordata 24 COLLECTING LOCALITIES 28 FOSSIL CHECK LIST 30 BIBLIOGRAPHY. 33 PLATES. ••• 39 iii FIGURES Page Figure 1 • Index map of the Chesapeake and Delaware Canal Area. .. .. 2 Figure 2. Generalized stratigraphic column of the formations exposed at the C & D Canal. 11 Figure 3. Foraminifera 14 Figure 4. Porifera 16 Figure 5. Cnidaria 16 Figure 6. Bryozoa. 17 Figure 7. Brachiopoda. 18 Figure 8. Mollusca-Gastropoda. 19 Figure 9. Mollusca-Pelecypoda. 21 Figure 10. Mollusca-Cephalopoda 22 Figure 11. Annelida . 22 Figure 12. Arthropoda 23 Figure 13. Echinodermata. 25 Figure 1 4. Chordata . 27 Figure 1 5. Collecting localities at the Chesapeake and Delaware Canal . ... .. 29 v CRETACEOUS FOSSILS FROM THE CHESAPEAKE AND DELAWARE CANAL: A GUIDE FOR STUDENTS AND COLLECTORS Edward M. Lauginiger INTRODUCTION Fossil collectors have been attracted to Delaware since the late 1820s when the excavation of the Chesapeake and Delaware (C&D) Canal first exposed marine fossils of Cretaceous age (Fig.
    [Show full text]
  • Baculites Baculus Meek and Hayden, 1861
    New Mexico Geological Society Downloaded from: https://nmgs.nmt.edu/publications/guidebooks/70 Baculites Baculus Meek and Hayden, 1861 (Earliest Maastrichtian) from the Uppermost Pierre Shale in the Raton basin of Northeastern New Mexico and its Significance Paul L. Sealey and Spencer G. Lucas, 2019, pp. 73-80 in: Geology of the Raton-Clayton Area, Ramos, Frank; Zimmerer, Matthew J.; Zeigler, Kate; Ulmer-Scholle, Dana, New Mexico Geological Society 70th Annual Fall Field Conference Guidebook, 168 p. This is one of many related papers that were included in the 2019 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. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks.
    [Show full text]
  • ARTICLES Definition of Late Cretaceous Stage Boundaries In
    ARTICLES De®nition of Late Cretaceous Stage Boundaries in Antarctica Using Strontium Isotope Stratigraphy J. M. McArthur, J. A. Crame,1 and M. F. Thirlwall2 Department of Geological Sciences, University College London, Gower Street, London WC1E 6BT, United Kingdom (e-mail: [email protected]) ABSTRACT New 87Sr/86Sr analyses of macrofossils from 13 key marker horizons on James Ross and Vega Islands, Antarctica, allow the integration of the Antarctic Late Cretaceous succession into the standard biostratigraphic zonation schemes of the Northern Hemisphere. The 87Sr/86Sr data enable Late Cretaceous stage boundaries to be physically located with accuracy for the ®rst time in a composite Southern Hemisphere reference section and so make the area one of global importance for documenting Late Cretaceous biotic evolution, particularly radiation and extinction events. The 87Sr/86Sr values allow the stage boundaries of the Turonian/Coniacian, Coniacian/Santonian, Santonian/Campanian, and Campanian/Maastrichtian, as well as other levels, to be correlated with both the United Kingdom and United States. These correlations show that current stratigraphic ages in Antarctica are too young by as much as a stage. Immediate implications of our new ages include the fact that Inoceramus madagascariensis, a useful fossil for regional austral correlation, is shown to be Turonian (probably Late Turonian) in age; the ªMytiloidesº africanus species complex is exclusively Late Coniacian in age; both Baculites bailyi and Inoceramus cf. expansus have a Late Con- iacian/Early Santonian age range; an important heteromorph ammonite assemblage comprising species of Eubostry- choceras, Pseudoxybeloceras, Ainoceras, and Ryugasella is con®rmed as ranging from latest Coniacian to very earliest Campanian.
    [Show full text]
  • Neomeris Mokragorensis Sp. Nov. (Calcareous Alga, Dasycladales) from the Cretaceous of Serbia, Montenegro and the Northern Calcareous Alps, (Gosau Group, Austria)
    GEOLO[KI ANALI BALKANSKOGA POLUOSTRVA 68 39–51 BEOGRAD, decembar 2007 ANNALES GÉOLOGIQUES DE LA PÉNINSULE BALKANIQUE BELGRADE, December 2007 DOI: 10.2298/GABP0701039R Neomeris mokragorensis sp. nov. (Calcareous alga, Dasycladales) from the Cretaceous of Serbia, Montenegro and the Northern Calcareous Alps, (Gosau Group, Austria) RAJKA RADOI^I]1 & FELIX SCHLAGINTWEIT2 Abstract. The new species of the genus Neomeris – Neomeris mokragorensis sp. nov. described in this paper from western Serbia originates: from the Albian of Mokra Gora (the succession transgrading on the serpenti- nite) and from the Turonian of the Skrape`–Kosjeri} area (the succession transgrading on the Carboniferous). The presence of this species has been noted in the Turonian of the Kukes and in the Santonian of the Meto- hija Cretaceous Unit (Mirdita Zone). In the surrounding of Podgorica (Dinaric Carbonate Platform, Montenegro), the same species previously was presented as Neomeris cf cretacea STEINMANN. Well preserved Neomeris speci- mens from the Turonian to the Santonian strata of the Northern Calcareous Alps (Gosau Group, Austria) pre- viously described as Neomeris circularis BADVE & NAYAK, is assigned to Neomeris mokragorensis sp. nov. Neomeris mokragorensis is characterized by a thin loosed skeleton formed only around ampullae, by which, besides the form of the ampullae, this species is clearly distinct from Neomeris cretacea (Steinmann). Key words: Dasycladales, genus Neomeris, new species, Middle and Late Cretaceous, Serbia, Montenegro, Austria. Apstrakt. Iz krednih slojeva zapadne Srbije opisana je nova vrsta dasikladalesa Neomeris mokragoren- sis sp. nov. do sada na|ena u albu Mokre Gore (tipski lokalitet) i turonu doline Skrape`a. Osim u zapad- noj Srbiji, nalasci ove vrste poznati su u Mirdita zoni: iz dowoturonskih slojeva Kukeske i santonskih slojeva Metohijske kredne jedinice.
    [Show full text]
  • 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.
    [Show full text]
  • Macrofauna and Palaeoecology of the Neuburg Kieselerde Member (Cenomanian to Lower Turonian Wellheim Formation, Bavaria, Southern Germany)
    Acta Geologica Polonica, Vol. 63 (2013), No. 4, pp. 555–610 DOI: 10.2478/agp-2013-0025 Silicified sea life – Macrofauna and palaeoecology of the Neuburg Kieselerde Member (Cenomanian to Lower Turonian Wellheim Formation, Bavaria, southern Germany) SIMON SCHNEIDER1, MANFRED JÄGER2, ANDREAS KROH3, AGNES MITTERER4, BIRGIT NIEBUHR5, RADEK VODRÁŽKA6, MARKUS WILMSEN5, CHRISTOPHER J. WOOD7 AND KAMIL ZÁGORŠEK8 1CASP, University of Cambridge, West Building, 181A Huntingdon Road, Cambridge, CB3 0DH, UK and GeoZentrum Nordbayern, Paleobiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Loewenichstr. 28, 91054 Erlangen, Germany. E-mail: [email protected] 2Lindenstr. 53, 72348 Rosenfeld, Germany. E-mail: [email protected] 3Natural History Museum Vienna, Geology-Palaeontology, Burgring 7, 1010 Wien, Austria. E-mail: [email protected] 4Hoffmann Mineral GmbH, Münchener Str. 75, 86633 Neuburg an der Donau, Germany. E-mail: [email protected] 5Senckenberg Naturhistorische Sammlungen Dresden, Museum für Mineralogie und Geologie, Paläozoologie, Königsbrücker Landstr. 159, 01109 Dresden, Germany. E-mails: [email protected]; [email protected] 6Academy of Sciences of the Czech Republic, Institute of Geology, Rozvojová 269, 16502 Praha 6, Czech Republic. E-mail: [email protected] 7Scops Geological Services Ltd., 31 Periton Lane, Minehead, Somerset TA24 8AQ, UK. E-mail: [email protected] 8Department of Paleontology, National Museum, Vaclavske nam. 68, 11579 Praha 1, Czech Republic. E-mail: [email protected] ABSTRACT: Schneider, S., Jäger, M., Kroh, A., Mitterer, A., Niebuhr, B., Vodrážka, R., Wilmsen, M., Wood, C.J. and Zágoršek, K. 2013. Silicified sea life – Macrofauna and palaeoecology of the Neuburg Kieselerde Member (Cenomanian to Lower Tur- onian Wellheim Formation, Bavaria, southern Germany).
    [Show full text]
  • Palaeontological Highlights of Austria
    © Österreichische Geologische Gesellschaft/Austria; download unter www.geol-ges.at/ und www.biologiezentrum.at Mitt. Österr. Geol. Ges. ISSN 0251-7493 92 (1999) 195-233 Wien, Juli 2000 Palaeontological Highlights of Austria WERNER E. PILLER1, GUDRUN DAXNER-HÖCK2, DARYL P DOMNING3, HOLGER C. FORKE4, MATHIAS HARZHAUSER2, BERNHARD HUBMANN1, HEINZ A. KOLLMANN2, JOHANNA KOVAR-EDER2, LEOPOLD KRYSTYN5, DORIS NAGEL5, PETER PERVESLER5, GERNOT RABEDER5, REINHARD ROETZEL6, DIETHARD SANDERS7, HERBERT SUMMESBERGER2 28 Figures and 1 Table Introduction Besides Zeapora gracilis, distinguished by large rounded cortical filaments, Pseudolitanaia graecensis and Pseu­ The oldest known fossils in Austria date back into the dopalaeoporella lummatonensis occur (Fig. 3). Pseudolitan­ Ordovician. From this time on a broadly continuous fossil aia graecensis is built up of straight thalli containing club- record is preserved up to the Holocene. Since an encyclo­ shaped filaments and Pseudopalaeoporella lummatonensis paedic or monographic presentation is impossible within is characterized by a typically poorly-calcified medullar this volume, nine case studies of different stratigraphic lev­ zone and delicate cortical filaments. els (Fig. 1) were selected to call attention to this remarkably There are two localities known with autochthonous algal good fossil documentation. These case studies include occurrences in the Graz Palaeozoic. One is characterized records on invertebrate fossils from several time slices from by Pseudopalaeoporella lummatonensis with dispersed the Late Palaeozoic to the Miocene, as well as on verte­ thalli of Pseudolitanaia. Contrary to all expectations, these brates from the Miocene and Pleistocene and on plant algae are found in marly lithologies suggesting very bad fossils from the Devonian and Early Miocene. This selection environmental conditions for photoautotrophic organisms.
    [Show full text]
  • Upper Albian and Cenomanian (Cretaceous) Ammonites from the Debarsu Formation (Yazd Block, Central Iran)
    Acta Geologica Polonica, Vol. 63 (2013), No. 4, pp. 489–513 DOI: 10.2478/agp-2013-0021 Upper Albian and Cenomanian (Cretaceous) ammonites from the Debarsu Formation (Yazd Block, Central Iran) MARKUS WILMSEN1, MARISA STORM2, FRANZ THEODOR FÜRSICH3 AND MAHMOUD REZA MAJIDIFARD4 1Senckenberg Naturhistorische Sammlungen Dresden, Museum für Mineralogie und Geologie, Sektion Paläozoologie, Königsbrücker Landstr. 159, D-01109 Dresden, Germany. E-mail: [email protected] 2Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, United Kingdom 3GeoZentrum Nordbayern, Fachgruppe PaläoUmwelt, Friedrich-Alexander-Universität Erlangen-Nürnberg, Loewenichstr. 28, D-91054 Erlangen, Germany. 4Geological Survey of Iran, Box 131851-1494, Tehran, Iran. ABSTRACT: Wilmsen, M., Storm, M., Fürsich, F.T. and Majidifard, M.R. 2013. Upper Albian and Cenomanian (Cretaceous) am- monites from the Debarsu Formation (Yazd Block, Central Iran). Acta Geologica Polonica, 63 (4), 489–513. Warszawa. New ammonite faunas consisting of 13 taxa provide the first reliable biostratigraphic dating of the Debarsu Forma- tion of the Yazd Block, west-central Iran, indicating several levels in the Upper Albian and Lower Cenomanian, while a foraminiferal assemblage places the top of the Formation in the Middle Turonian. Among the identified ammonite taxa, Acompsoceras renevieri (Sharpe, 1857) is recorded from Iran for the first time. The upper part of the lower Up- per Albian is proved by the occurrences of mortoniceratines of the Mortoniceras (M.) inflatum Zone in the lower- most part of the Debarsu Formation. For the upper Upper Albian (traditional Stoliczkaia dispar Zone), the M. (Sub- schloenbachia) rostratum and M. (S.) perinflatum zones are proved by their index taxa.
    [Show full text]