Systematic Paleontology of Quaternary Ostracode dggs. Systematic Paleontology of Quaternary Ostracode

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  • Systematic Paleontology of Quaternary Ostracode Assemblages from the Gulf of Alaska, Part 1: Families C ytherellidae, Bairdiidae, Cytheridae, Leptocytheridae, Limnocytheridae, Eucytheridae, Krithidae, Cushmanideidae

    By ELISABETH M. BROUWERS

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    U . S . G E O L O G I C A L S U R V E Y P R O F E S S I O N A L P A P E R 1 5 1 0

    U N I T E D S T A T E S G O V E R N M E N T P R I N T I N G O F F I C E , W A S H I N G T O N : 1990

  • DEPARTMENT OF THE INTERIOR

    MANUEL LUJAN, JR., Secretary

    U.S. GEOLOGICAL SURVEY

    Dallas L. Peck, Director

    Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the

    U.S. Government

    Library of Congress Cataloging in Publication Data

    Brouwers, Elisabeth M. Systematic paleontology of Quaternary ostracode assemblages from the Gulf of Alaska / by Elisabeth M. Brouwers.

    p. cm.-(U.S. Geological Survey professional paper ; 1510) Includes bibliographical references. Contents: pt. 1. Families Cytherellidae, Bairdiidae, Cytheridae, Leptocytheridae, Limnocytheridae, Eucytheridae,

    Krithidae. Cushmanideidae. sup t .o f~ocs . no.: I 19.10: 1510 1. Ostracoda, Fossil- Alaska-Alaska, Gulf of. 2. Stratigraphic correlation- Alaska-Alaska, Gulf of.

    3. Paleontology-Quaternary. I. Title. 11. Series. QE817.08B753 1990 565'.33'097982-dc20 89-600370

    CIP

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    For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225

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    CONTENTS

    Abstract ........................................................................... ...................................................................... Introduction

    Study area ........................................................................ Depth zones ...................................................................... Systematic paleontology ......................................................

    . .......................................................... Cytherella sp A Neonesidea sitkagi n . sp ...............................................

    ....................................................... Cythere valentinei Cythere alveolivalva .................................................... Cytheromorpha eskerensis n . sp .................................... Cytheromorpha sp . C .................................................. Cytheromorpha grandwashensis n . sp ............................

    ............................................ Cytheromorpha knikensis Cytheromorpha molniai n . sp ....................................... Schizocythere sp . A ..................................................... Palmenella limicola .................................................. Acuminocythere crescentensis ....................................... Munseyella melzeri n . sp ............................................. Munseyella ristveti n . sp .............................................

    Page

    1 1 2 2 3 3 3

    12 13 13 15 15 16 17 18 19 20 22 22

    Systematic paleontology-Continued Pectocythere sp . G ...................................................... Pectocythere sp . A ...................................................... Pectocythere janae n . sp .............................................. Pectocythere kiklukhensis n . sp .................................... Pectocythere mrincovichi n . sp .................................... Pectocythere parkerae ................................................. Pectocythere tsiuensis n . sp ..........................................

    .......................................................... Cluthia cluthae Cluthia foresteri n . sp ................................................. Limnocythere friabilis ................................................. Limnocythere inopinata ............................................... Limnocythere itasca .................................................... Limnocythere staplini ................................................. Eucythere argus ......................................................... Krithe burkholderi n . sp .............................................. Krithe adelspergi n . sp ................................................ Pontocythere dahlgrenensis n . sp .................................. Pontocythere jefferiesensis n . sp ....................................

    Acknowledgments ............................................................. References cited ...............................................................

    ILLUSTRATIONS

    Page

    [Plates follow references cited1

    Page

    PLATES 1.13 . Quaternary ostracodes from the Gulf o f Alaska .

    ................................................................................................. . FIGURE 1 Map showing region studied in the Gulf o f Alaska .............................................................................................. . 2 Map showing sample localities in the Gulf o f Alaska

    3-39 . Plots of: . .................................................................................. . 3 Length versus height for Neonesidea sitkagi n sp

    .................................................. . 4 Length versus height for Cythere valentinei Tsukagoshi and Ikeya, 1987 .................................... . 5 Abundance versus water depth for Cythere valentinei Tsukagochi and Ikeya, 1987

    .................................................................... . 6 Length versus height for Cythere alveoliz~alva Smith, 1952 ....................................................... . 7 Abundance versus water depth for Cythere altleolivalva Smith, 1952

    . ...................................................................... . 8 Length versus height for Cytheromorpha eskerensis n sp . .............................................................. . 9 Length versus height for Cytheromorpha grandwashensis n sp

    . ................................................. . 10 Abundance versus water depth for Cytheromorpha grandwashensis n sp ..................................... 11 . Length versus height for Cytheromorpha knikensis Forester and Brouwers, 1985

    ........................ 12 . Abundance versus water depth for Cytheromorpha knikensis Forester and Brouwers, 1985 . ......................................................................... 13 . Length versus height for Cytheromorpha molniai n sp

    . ............................................................ . 14 Abundance versus water depth for Cytheromorpha molniai n sp ............................................................... . 15 Length versus height for Palmenella limicola (Norman, 1865)

  • CONTENTS

    .................................................. Abundance versus water depth for Palmenella limicola (Norman. 1865) ......................................... Length versus height for Acuminocythere crescentensis Swain and Gilby. 1974

    Length versus height for Munseyella melzeri n . sp ............................................................................... .................................................................. Abundance versus water depth for Munseyella melzeri n . sp

    Length versus height for Munseyella ristveti n. sp ............................................................................... Length versus height for Pectocythere janae n . sp ................................................................................

    ................................................................... Abundance versus water depth for Pectocythere janae n . sp Length versus height for Pectocythere kiklukhensis n . sp ...................................................................... Length versus height for Pectocythere marincovichi n . sp ......................................................................

    .................................................... Length versus height for Pectocythere parkerae Swain and Gilby, 1974 ....................................... Abundance versus water depth for Pectocythere parkerae Swain and Gilby, 1974

    Length versus height for Pectocythere tsiuensis n . sp ............................................................................ .............................................................. Abundance versus water depth for Pectocythere tsiuensis n . sp

    .................................... Length versus height for Cluthia cluthae (Brady, Crosskey, and Robertson, 1874) Length versus height for Cluthia foresteri n . sp ...................................................................................

    . ...................................................................... Abundance versus water depth for Cluthia foresteri n sp Length versus height for Eucythere argus (Sars, 1866) ..........................................................................

    ............................................................. Abundance versus water depth for Eucythere argus (Sars, 1866) . ................................................................................ Length versus height for Krithe burkholderi n sp

    ..................................................... ....................... Length versus height for Krithe adelspergi n. sp .. . ..................................................................... Abundance versus water depth for Krithe adelspergi n sp . .................................................................... Length versus height for Pontocythere dahlgrenens