DOCSLIB.ORG

Mid-Pleistocene Extinction of Deep-Sea Ostracoda?

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mid-Pleistocene Extinction of Deep-Sea Ostracoda? Mid-Pleistocene Extinction of Deep-Sea Ostracoda? A thesis submitted in fulfilment of the requirements for the degree of Master of Science in Geology at the University of Canterbury By Frances J. Gaiger July 2006 Scanning Electron Microscope image of Bradleya sp. aff. silentium from Pleistocene sample, ODP Site 1125. Bradleya is a key genus in terms of our understanding of the induction of shallow water species into the abyss A BSTRACT A global extinction event has been documented in protozoan foraminifera in the late Pliocene to Pleistocene. The timing of the extinction event varied depending on location, however for Ocean Drilling Project Site 1125, disappearances occurred between 2.5 and 0.57 Ma, with the major decline approximately 1.1 Ma. In order to determine if this event affected benthic organisms other than protozoans, this study was undertaken to determine how podocopid ostracods (Crustacea) recovered Ocean Drilling Program Site 1125 responded. The present study was hindered by the small number of valves recovered; the fact that a large proportion of taxa found were undescribed and new to science; and the current state of taxonomic scheme that is under significant revision. These factors meant that a comprehensive comparison could not be achieved. Despite this, counts of ostracod valves and assessments of diversity from this study reveal a significant increase in both parameters from approximately 900-600 ka. Three possible causes were investigated to account for this increase, sediment type and sample size; affects of taphonomy, mainly dissolution; or an actual biotic ‘event’. Statistical analyses showed that although sample size did have some effect, it was not the sole reason for the increase in ostracod numbers. Dissolution had an expected affect on the percentage of juveniles but no correlations were found with other sample characteristics. Sedimentation rate was investigated but this also proved unrelated. Therefore, it is suggested that the increase in total ostracod valves and diversity which occurs between 900 and 600 ka was in fact a natural, biotic ‘event’. This preliminary evidence suggests that an oceanographic event that has negatively impacted on the foraminifers has had the reverse affect on the ostracod assemblage, in the sense that both population size and diversity increase during that time. T ABLE OF C ONTENTS Title Page..........................................................................i Frontispiece .....................................................................ii Abstract ..........................................................................iii Table of Contents ............................................................ iv List of Figures................................................................vii List of Tables .................................................................. ix Acknowledgments............................................................. x CHAPTER 1 Introduction 1.1 Research Objectives....................................................................................1 1.2 Marine Ostracoda.......................................................................................2 1.3 Chatham Rise tectonic and sedimentation history ..................................4 1.4 Oceanography .............................................................................................9 1.5 Paleoceanography .....................................................................................12 1.6 Ocean Drilling Program core 1125..........................................................13 1.7 Chronostratigraphy ..................................................................................17 1.8 Stilostomella Extinction Event .................................................................20 CHAPTER 2 Methods 2.1 Core drilling and subsampling ................................................................23 2.2 Sample preparation and picking .............................................................25 2.3 Scanning Electron Microscopy ................................................................27 2.4 Transmitted Light Microscopy................................................................29 2.5 Assessment of dissolution .........................................................................30 2.6 Statistical analyses....................................................................................31 2.7 Cataloguing of specimens and sample residues......................................32 iv CHAPTER 3 Taxonomy 3.1 Systematics.................................................................................................33 Cytherella sp. a ..........................................................................33 Cytherella sp. b..........................................................................33 Bythocypris sp. ..........................................................................34 Propontocypris sp......................................................................34 Argilloecia sp.............................................................................34 Cytheropteron sp. aff. dibolos...................................................35 Cytheropteron sp. aff. garganicum...........................................35 Cytheropteron sp. aff. quadrata................................................36 Cytheropteron posteroreticulata...............................................36 Cytheropteron sianae ................................................................37 Cytheropteron testudo SARS 1869.............................................37 Cytheropteron sp. aff. sp. 1 AYRESS 1996 ................................39 Cytheropteron sp. a ...................................................................39 Cytheropteron n. sp. ..................................................................39 Cluthia sp. a...............................................................................40 Cluthia sp. b...............................................................................40 Taracythere n.sp........................................................................41 Legitimocythere sp. ...................................................................41 Apatihowella sp. ........................................................................41 Fallacihowella sp. aff. F. sp. a MAZZINI ...................................42 Philoneptunus provocator ........................................................42 Ambocythere sp. aff. recta.........................................................43 Rugocythereis horrida ..............................................................43 Bradleya opima. ........................................................................44 Bradleya pelasgica ....................................................................44 Bradleya perforata ....................................................................45 Bradleya pygmaea.....................................................................45 Bradleya sp. aff. silentium ........................................................46 Bradleya n. sp. a ........................................................................46 Poseidonamicus major..............................................................47 Pseudeucythere n.sp..................................................................47 Krithe sp. a.................................................................................48 Krithe sp. b.................................................................................48 Krithe sp. c.................................................................................48 Krithe sp. d.................................................................................49 Parakrithe sp. ............................................................................49 Xestoleberis sp...........................................................................50 CHAPTER 4 Results and Discussion 4.1 Ostracod dominance and diversity..........................................................51 4.2 Sampling problems...................................................................................54 v 4.3 Dissolution and taphonomy......................................................................58 4.4 Taxonomy ..................................................................................................64 4.4.1 Cythereis/Philoneptunus............................................................66 4.4.2 Cytheropteron testudo................................................................67 4.4.3 Adult versus juvenile valves.......................................................67 4.5 Benthic ostracods and the MPT...............................................................69 CHAPTER 5 Conclusions 5.1 Conclusions................................................................................................73 References...................................................................... 76 Plates 1-8 ....................................................................... 82 APPENDICES Appendix 1 – Introduction 1.1 Macroscopic tephra for ODP 1125..........................................................90 1.2 Nannofossil datum levels for ODP 1125..................................................91 1.3 Significant foraminiferal and bolboformid datums for ODP 1125 ......92 Appendix 2 -Methods 2.1 Details from ODP Site 1125 samples used in this study ........................90 2.2 Database of all picked specimens.............................................................91
Load more

Recommended publications
  • Taxonomy of Quaternary Deep-Sea Ostracods from the Western North Atlantic Ocean
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey 2009 Taxonomy Of Quaternary Deep-Sea Ostracods From The Western North Atlantic Ocean Moriaki Yasuhara National Museum of Natural History, Smithsonian Institution, [email protected] Hisayo Okahashi National Museum of Natural History, Smithsonian Institution, [email protected] Thomas M. Cronin U.S. Geological Survey, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Part of the Earth Sciences Commons Yasuhara, Moriaki; Okahashi, Hisayo; and Cronin, Thomas M., "Taxonomy Of Quaternary Deep-Sea Ostracods From The Western North Atlantic Ocean" (2009). USGS Staff -- Published Research. 242. https://digitalcommons.unl.edu/usgsstaffpub/242 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. [Palaeontology, Vol. 52, Part 4, 2009, pp. 879–931] TAXONOMY OF QUATERNARY DEEP-SEA OSTRACODS FROM THE WESTERN NORTH ATLANTIC OCEAN by MORIAKI YASUHARA*, HISAYO OKAHASHI* and THOMAS M. CRONIN *Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, MRC 121, PO Box 37012, Washington, DC 20013-7012, USA; e-mails: [email protected] or [email protected] (M.Y.), [email protected] (H.O.) U.S. Geological Survey,
    [Show full text]
  • Data Report: Pliocene and Pleistocene Deep-Sea Ostracods from Integrated
    Tada, R., Murray, R.W., Alvarez Zarikian, C.A., and the Expedition 346 Scientists Proceedings of the Integrated Ocean Drilling Program, Volume 346 Data report: Pliocene and Pleistocene deep-sea ostracods from Integrated Ocean Drilling Program Site U1426 (Expedition 346)1 Katsura Yamada,2 Kentaro Kuroki,3 and Tatsuhiko Yamaguchi4 Chapter contents Abstract Abstract . 1 Little is known about fossil ostracods from deep-sea drilling sites in the marginal sea bordered by the Eurasian continent, the Ko- Introduction . 1 rean Peninsula, and the Japanese Islands. This report presents tax- Site location and setting . 2 onomic descriptions for the Pliocene and early Pleistocene deep- Material and methods. 2 sea ostracods at Integrated Ocean Drilling Program Expedition Results . 2 346 Site U1426 on the Oki Ridge in the marginal sea. We found Acknowledgments. 2 23 species and 12 genera in discrete core samples. The ostracods References . 2 constitute taxa that dwell under the Tsushima Warm Current and Figure. 7 the Japan Sea Intermediate-Proper Water. We present taxonomic Tables. 8 summaries of ostracod species distribution and ecology in addi- Plates . 15 tion to scanning electron microscopic images. Taxonomic notes . 18 Introduction Previously, Pliocene and Pleistocene ostracods from the marginal sea were investigated using specimens from mainly outcrops ex- posed in the marginal sea side of the Japanese Islands. Most of these studies examined shallow-marine ostracods from the Setana (Hayashi, 1988), Omma (Ozawa and Kamiya, 2001, 2005), Yabuta (Cronin et al., 1994), Mita (Goto et al., 2014b), Shichiba (Ozawa, 2010; Ishida et al., 2012), and Sasaoka (Irizuki, 1989; Yamada et al., 2002) formations.
    [Show full text]
  • Cypris 2016-2017
    CYPRIS 2016-2017 Illustrations courtesy of David Siveter For the upper image of the Silurian pentastomid crustacean Invavita piratica on the ostracod Nymphateline gravida Siveter et al., 2007. Siveter, David J., D.E.G. Briggs, Derek J. Siveter, and M.D. Sutton. 2015. A 425-million-year- old Silurian pentastomid parasitic on ostracods. Current Biology 23: 1-6. For the lower image of the Silurian ostracod Pauline avibella Siveter et al., 2012. Siveter, David J., D.E.G. Briggs, Derek J. Siveter, M.D. Sutton, and S.C. Joomun. 2013. A Silurian myodocope with preserved soft-parts: cautioning the interpretation of the shell-based ostracod record. Proceedings of the Royal Society London B, 280 20122664. DOI:10.1098/rspb.2012.2664 (published online 12 December 2012). Watermark courtesy of Carin Shinn. Table of Contents List of Correspondents Research Activities Algeria Argentina Australia Austria Belgium Brazil China Czech Republic Estonia France Germany Iceland Israel Italy Japan Luxembourg New Zealand Romania Russia Serbia Singapore Slovakia Slovenia Spain Switzerland Thailand Tunisia United Kingdom United States Meetings Requests Special Publications Research Notes Photographs and Drawings Techniques and Methods Awards New Taxa Funding Opportunities Obituaries Horst Blumenstengel Richard Forester Franz Goerlich Roger Kaesler Eugen Kempf Louis Kornicker Henri Oertli Iraja Damiani Pinto Evgenii Schornikov Michael Schudack Ian Slipper Robin Whatley Papers and Abstracts (2015-2007) 2016 2017 In press Addresses Figure courtesy of Francesco Versino,
    [Show full text]
  • CLASE OSTRACODA. Orden Podocopida
    Revista IDE@ - SEA, nº 74 (30-06-2015): 1–10. ISSN 2386-7183 1 Ibero Diversidad Entomológica @ccesible www.sea-entomologia.org/IDE@ Clase: Ostracoda Orden Podocopida Manual CLASE OSTRACODA Orden Podocopida Ángel Baltanás1 & Francesc Mesquita-Joanes2 1 Dep. Ecología (Fac. Ciencias), Universidad Autónoma de Madrid, C/ Darwin, 2, 28049 Madrid (España). [email protected] 2 Inst. “Cavanilles” de Biodiversidad y Biología Evolutiva, Universidad de Valencia, Av. Dr. Moliner, 50, 46100 Burjassot (España). [email protected] 1. Breve definición del grupo y principales caracteres diagnósticos Según el criterio más extendido actualmente, y que aquí seguiremos, se considera a los ostrácodos como una clase (Cl. Ostracoda) del Subphylum Crustacea, perteneciente al Phylum Arthropoda. No obstante, existen autores que defienden su pertenencia, como subclase, a la clase Maxillopoda (que incluiría tam- bién a branquiuros, tantulocáridos, copépodos y cirrípedos, entre otros). Más allá de esta circunstancia, los ostrácodos pueden describirse como crustáceos de tamaño mediano a pequeño (desde los 0,2 a los 5 mm; con casos excepcionales que alcanzan los 3 cm), que poseen un ojo naupliar medial, con la segmen- tación corporal severamente reducida, entre cinco y ocho pares de apéndices y, como elemento más significativo, la presencia de un caparazón bivalvo. Aunque el caparazón contiene en sí mismo rasgos diagnósticos (tamaño, forma, ornamentación...) que ayudan a la correcta asignación taxonómica de los ostrácodos, su presencia—que obstaculiza la observación in vivo de muchos detalles diagnósticos del animal— y el pequeño tamaño de estos organismos obligan con frecuencia a la disección de los ejempla- res para su identificación, especialmente para la identificación a nivel específico.
    [Show full text]
  • 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.
    [Show full text]
  • The Use of Ostracoda in the Palaeoenvironmental Reconstruction of the Gulf - Facies Analysis and Morphological Variation
    THE USE OF OSTRACODA IN THE PALAEOENVIRONMENTAL RECONSTRUCTION OF THE GULF OF CARPENTARIA, AUSTRALIA, FROM THE LAST INTERGLACIAL TO PRESENT A thesis submitted in fulfilment of the requirements for the award of the degree DOCTOR OF PHILOSOPHY from the UNIVERSITY OF WOLLONGONG by JESSICA MARIE REEVES, BSc (Hons). SCHOOL OF EARTH AND ENVIRONMENTAL SCIENCES 2004 CERTIFICATION I, Jessica M. Reeves, declare that this thesis, submitted in fulfilment of the requirements for the award of Doctor of Philosophy, in the School of Earth and Environmental Sciences, University of Wollongong, is wholly my own work unless otherwise referenced or acknowledged. The document has not been submitted for qualifications at any other academic institution. Jessica M. Reeves 03 May 2004 Table of Contents List of figures…………………………………………………………………………………….v List of tables…………………………………………………………………………………….vii Abstract………………………………………………………………………………………….vii Acknowledgements………………………………………………………………………………ix INTRODUCTION………………………………………………………………………………1 Thesis outline……………………………………………………………………………………. 3 1. THE GULF OF CARPENTARIA………………………………………………………… 7 1.1 Location of the study area………………………………………………………………….7 1.2 Geological history of the Gulf of Carpentaria……………………………………………...8 1.3 Physiography of the modern basin………………………………………………………...13 1.4 Modern sedimentation in the gulf………………………………………………………….20 1.5 Meteorological context…………………………………………………………………….23 1.6 The modern environment………………………………………………………………….26 1.7 Summary…………………………………………………………………………………..28 2. THE STAT OF KNOWLEDGE…………………………………………………………….29
    [Show full text]
  • RV Sonne SO-250 Cruise Report / Fahrtbericht Tomakomai - Yokohama (Japan) 16.08.-26.09.2016
    RV Sonne SO-250 Cruise Report / Fahrtbericht Tomakomai - Yokohama (Japan) 16.08.-26.09.2016 SO-250 KuramBio II (Kuril Kamchatka Biodiversity Studies) Angelika Brandt University of Hamburg, Centre of Natural History (CeNak), Zoological Museum Hamburg and shipboard scientific party 1 TOC / Inhaltsverzeichnis 1. Cruise summary / Zusammenfassung ................................................................................................... 6 German / Deutsch ......................................................................................................................... 6 English / Englisch ........................................................................................................................... 6 2. Participants / Teilnehmer ...................................................................................................................... 8 Principal investigators / Leitende Wissenschaftler ....................................................................... 8 Scientific party / wissenschaftliche Fahrtteilnehmer .................................................................... 8 Crew / Mannschaft ...................................................................................................................... 12 3. Narrative of the cruise / Ablauf der Forschungsfahrt ......................................................................... 13 4. Aims of the Cruise / Zielsetzung der Forschungsfahrt ........................................................................ 15 5. Agenda of the cruise
    [Show full text]
  • Irish Biodiversity: a Taxonomic Inventory of Fauna
    Irish Biodiversity: a taxonomic inventory of fauna Irish Wildlife Manual No. 38 Irish Biodiversity: a taxonomic inventory of fauna S. E. Ferriss, K. G. Smith, and T. P. Inskipp (editors) Citations: Ferriss, S. E., Smith K. G., & Inskipp T. P. (eds.) Irish Biodiversity: a taxonomic inventory of fauna. Irish Wildlife Manuals, No. 38. National Parks and Wildlife Service, Department of Environment, Heritage and Local Government, Dublin, Ireland. Section author (2009) Section title . In: Ferriss, S. E., Smith K. G., & Inskipp T. P. (eds.) Irish Biodiversity: a taxonomic inventory of fauna. Irish Wildlife Manuals, No. 38. National Parks and Wildlife Service, Department of Environment, Heritage and Local Government, Dublin, Ireland. Cover photos: © Kevin G. Smith and Sarah E. Ferriss Irish Wildlife Manuals Series Editors: N. Kingston and F. Marnell © National Parks and Wildlife Service 2009 ISSN 1393 - 6670 Inventory of Irish fauna ____________________ TABLE OF CONTENTS Executive Summary.............................................................................................................................................1 Acknowledgements.............................................................................................................................................2 Introduction ..........................................................................................................................................................3 Methodology........................................................................................................................................................................3
    [Show full text]
  • Boletim IV SBPI
    Simpósio IVBrasileiro de Paleoinvertebrados BOLETIM DE RESUMOS Editores: Rafael Costa da Silva Hermínio Ismael de Araújo Júnior Promoção: Realização: SBP RJES SOCIEDADE BRASILEIRA DE PALEONTOLOGIA NÚCLEO RIO DE JANEIRO/ESPÍRITO SANTO Paleontologia em Destaque. Edição Especial IV Simpósio Brasileiro de Paleoinvertebrados Editores para esta edição especial: Rafael Costa da Silva, Hermínio Ismael de Araújo Júnior Diagramação: Rafael Costa da Silva Endereço: Museu de Ciências da Terra, Serviço Geológico do Brasil - CPRM, Av. Pasteur, 404, Urca, 22290-240, Rio de Janeiro, RJ, Brasil. E-mail: [email protected] Distribuído em 08 de outubro de 2018. Simpósio Brasileiro de Paleoinvertebrados (4.: 2018: Rio de Janeiro, RJ) Boletim de Resumos / Paleontologia em Destaque: Boletim Informativo da Sociedade Brasileira de Paleontologia. – Vol. 1, nº 1 (1984). 08 a 10 de outubro de 2018 ISSN 1516-1811 1. Geociências. 2. Paleontologia. 3. Sociedade Brasileira de Paleontologia I. Silva, Rafael C. II. Araújo Júnior, Hermínio I. Sociedade Brasileira de Paleontologia (gestão 2017-2019) Presidente: Renato Pirani Ghilardi (UNESP) Vice-Presidente: Annie Schmaltz Hsiou (USP) 1ª Secretária: Taissa Rodrigues Marques da Silva (UFES) 2° Secretário: Rodrigo Miloni Santucci (UnB) 1° Tesoureiro: Marcos César Bissaro Júnior (USP) 2° Tesoureiro: Átila Augusto Stock da Rosa (UFSM) Diretor de Publicações: Sandro Marcelo Scheffler (Museu Nacional/ UFRJ) Comissão Organizadora Presidente - Sandro Marcelo Scheffler (MN/UFRJ) Vice-Presidente - Antonio Carlos Sequeira Fernandes
    [Show full text]
  • Vol. XXXVII, N. 1 (2013) Organo Della Società Siciliana Di Scienze Naturali
    Qua3it4 ambientalePresentazione del fiumeSERIE Oreto QUARTA (Palermo) ... ISSN 0394-00631 Vol. XXXVII, N. 1 (2013) ISSN online 2240-3442 Organo della Società Siciliana di Scienze Naturali Volume contents Ostracodophili From Naples 1963 to Rome 2013 – a brief review of how the International Research Group on Ostracoda (IRGO) developed as a social commu- nication system pp. 13-17 J.A. Aguilar-Alberola & F. Mesquita-Joanes The hatching process in Cyprididae ostracods: morphology and function of the A-9 stage pp. 19-20 G. Aiello, D. Barra & R. Parisi Variability in ornament and shape of the genus Urocythereis from a southern Italy bay (Ionian Sea) pp. 21-24 D. Akdemir & O. Külköylüoğlu On the relationship between climatic changes and ecology of ostracods in Hatay, Region Turkey pp. 25-26 L.G. Akita, P. Frenzel & N. Börner The recent ostracod fauna of Tangra Yumco Lake System, Central Tibetan Plateau pp. 27-30 C.M. de Almeida & D.A. Do Carmo Taxonomy and palaeoenvironmental evolution of Late Cretaceous ostracodes from offshore Santos Basin, southern continental margin, Brazil pp. 31-32 C.M. de Almeida & D.A. Do Carmo The first ostracods species of Permian/?Triassic from Paraná Basin, central Brazil pp. 33-34 C.A. Alvarez Zarikian Ostracoda in deep ocean Cenozoic Paleoceano- graphy: from regions of deep water formation to ultraoligotrophic environments pp. 35-38 L. Antonietto, A. Abrahão, Taxonomic, biostratigraphic and palaeozoogeo- D.A. Do Carmo & R. Meireles graphic aspects of Amphicytherura Butler & Jones, 1957 and Aracajuia Krömmelbein, 1967 (Cytheridae, Schizocytherinae) pp. 39-40 A. Baltanás & D.L. Danielopol Disparity and diversity in the Candoninae (Ostra- coda, Cypridoidea) pp.
    [Show full text]
  • Subphylum Crustacea Brünnich, 1772. In: Zhang, Z.-Q
    Subphylum Crustacea Brünnich, 1772 1 Class Branchiopoda Latreille, 1817 (2 subclasses)2 Subclass Sarsostraca Tasch, 1969 (1 order) Order Anostraca Sars, 1867 (2 suborders) Suborder Artemiina Weekers, Murugan, Vanfleteren, Belk and Dumont, 2002 (2 families) Family Artemiidae Grochowski, 1896 (1 genus, 9 species) Family Parartemiidae Simon, 1886 (1 genus, 18 species) Suborder Anostracina Weekers, Murugan, Vanfleteren, Belk and Dumont, 2002 (6 families) Family Branchinectidae Daday, 1910 (2 genera, 46 species) Family Branchipodidae Simon, 1886 (6 genera, 36 species) Family Chirocephalidae Daday, 1910 (9 genera, 78 species) Family Streptocephalidae Daday, 1910 (1 genus, 56 species) Family Tanymastigitidae Weekers, Murugan, Vanfleteren, Belk and Dumont, 2002 (2 genera, 8 species) Family Thamnocephalidae Packard, 1883 (6 genera, 62 species) Subclass Phyllopoda Preuss, 1951 (3 orders) Order Notostraca Sars, 1867 (1 family) Family Triopsidae Keilhack, 1909 (2 genera, 15 species) Order Laevicaudata Linder, 1945 (1 family) Family Lynceidae Baird, 1845 (3 genera, 36 species) Order Diplostraca Gerstaecker, 1866 (3 suborders) Suborder Spinicaudata Linder, 1945 (3 families) Family Cyzicidae Stebbing, 1910 (4 genera, ~90 species) Family Leptestheriidae Daday, 1923 (3 genera, ~37 species) Family Limnadiidae Baird, 1849 (5 genera, ~61 species) Suborder Cyclestherida Sars, 1899 (1 family) Family Cyclestheriidae Sars, 1899 (1 genus, 1 species) Suborder Cladocera Latreille, 1829 (4 infraorders) Infraorder Ctenopoda Sars, 1865 (2 families) Family Holopediidae
    [Show full text]
  • Key to Ostracods
    2007. Cohen, Anne C., Dawn E. Peterson, and Rosalie F. Maddocks. Ostracoda, pp. 417-446, In: James T. Carlton, ed., The Light & Smith Manual: Intertidal Invertebrates from Central California to Oregon. Fourth Edition. University of California Press, Berkeley and Los Angeles. GRBQ188-2777G-CH27[411-693].qxd 5/3/07 05:29 PM Page 417 Techbooks (PPG Quark) Pleopis polyphemoides (Leuckart, 1859) (ϭPodon polyphe- Saunders (1980), and King and Hanner (1998) if you are work- moides). Number of exopodite setae on thoracopods I–3, II–3, ing with a species of Lepidurus, or Sassaman et al. (1997) if you III–3, IV–2; Monterey Bay and North American West Coast have a species of Triops. (Baker 1938, Proc. Cal. Acad. Sci. 23: 311–365). Pleopis schmackeri (Poppe, 1889). Number of exopodite setae on thoracopods I–4, II–4, III–4, IV–2; not yet known from the References North American West Coast (T. Onbé, personal communication). Belk, D. 1989. Identification of species in the conchostracan genus Eu- Podon intermedius Liljeborg, 1853. Number of exopodite setae limnadia by egg shell morphology. Journal of Crustacean Biology 9: on thoracopods I–2, II–1, III–1, IV–2; also not yet known from the 115–125. North American West Coast (T. Onbé, personal communication). Dodson, S. I., and D. G. Frey. 2001. Cladocera and other Branchiopoda, Podon leuckarti Sars, 1862. Number of exopodite setae on pp. 849–913. In: Ecology and classification of North American fresh- thoracopods I–1, II–1, III–1, IV–2; Northern Bering Sea, water invertebrates. 2nd ed. J.
    [Show full text]