Biostratigraphic, paleoecologic and biologic significance of the Silurian (Llandovery) acritarch Beromia rexroadii gen. emend. et sp. Nov., mid‐continent and Eastern United States

References cited

• ACHAB , A. 1976 . Les acritarches de la Formation d'Awantjish (Llandovérian supérieur) du sondage Val Brillant, Vallée de Matapédia, Québec . Canadian Journal of Earth Sciences , 13 (9) : 1310 – 1318 .
   Web of Science ®Google Scholar
• ADAMS , G. I. , BUTTS , C. , STEPHENSON , L.W. and COOKE , W. 1926 . Geology of Alabama . Geological Survey of Alabama, Special Report , 14 : 1 – 312 .
   Google Scholar
• AL‐ALMERI , T. K. 1986 . Observations on the wall structure and excystment mechanism of acritarchs . Journal of Micropalaeontology , 5 (2) : 27 – 35 .
   Google Scholar
• BEARCE , D. N. 1973 . Origin of conglomerates in the Silurian Red Mountain Formation of central Alabama; their paleogeo‐graphic and tectonic significance . American Association of Petroleum Geologists Bulletin , 57 : 688 – 701 .
   Google Scholar
• BERRY , W.B.N. 1967 . A new species of Climacograptus scalaris (Linne) from Kentucky . Journal of Paleontology , 41 : 507 – 511 .
   Google Scholar
• BERRY , W.B.N. and BOUCOT , A.J. 1970 . Correlation of the North American Silurian rocks . Geological Society of America, Special Paper , 102 : 1 – 289 .
   Google Scholar
• BUTTS , C. and GILDERSLEEVE , B. 1948 . Geology and mineral resources of the Paleozoic area in northwest Georgia . Georgia Geological Survey Bulletin , 54 : 1 – 176 .
   Google Scholar
• CHADWICK , G. H. 1918 . Stratigraphy of the New York Clinton . Geological Society of America, Bulletin , 29 : 327 – 368 .
   Google Scholar
• CHOWNS , T. M. 1972a . Molasse sedimentation in the Silurian rocks of northwest Georgia Chowns T. M. Sedimentary environments in the Paleozoic rocks of northwest Georgia . Georgia Geological Society Guidebook , 11 : 13 – 24 .
   Google Scholar
• _____ . 1972b . Depositional environments in the Upper Ordovician of northwest Georgia and southeast Tennessee . Georgia Geological Society, Guidebook , 11 : 3 – 12 .
   Google Scholar
• _____ . 1989 . Stratigraphy of major thrust sheets in the Valley and Ridge province of Georgia Fritz W. J. Excursions I. Georgia Geology, Geological Society of America Field Trip No. 8 . Georgia Geological Society Guidebooks , 9 (1) : 211 – 238 .
   Google Scholar
• CHOWNS , T. M. and HOWARD , J. H. III . 1972 . Section of Ordovician and Silurian strata exposed in road cuts in 1–75 at Ringgold Gap, Georgia. In: Chowns J. M. (ed.), Sedimentary environments in the Paleozoic rocks of northwest Georgia . Georgia Geological Society Guidebook , 11 : 97 – 100 .
   Google Scholar
• CHOWNS , T. M. and MCKINNEY , F. K. Depositional facies in Middle‐Upper Ordovician and Silurian rocks of Alabama and Georgia . Excursions in Southeastern geology, Geological Society of America, Annual Meeting Field Trip . Edited by: Frey , R. W. Vol. 2 , pp. 323 – 348 . American Geological Institute .
   Google Scholar
• COLBATH , G. K. 1983 . Fossil prasinophycean phycomata (Chlorophyta) from the Silurian Bainbridge Formation, Missouri U.S.A. . Phycologia , 22 (3) : 249 – 265 .
   Web of Science ®Google Scholar
• COLBATH , G. K. and GRENFELL , H. R. 1995 . Review of biological affinities of Paleozoic acid resistant, organic‐walled eukaryotic algal microfossils (including “acritarchs") . Review of Palaeobotany and Palynology , 86 : 287 – 314 .
   Web of Science ®Google Scholar
• CRAMER , F. H. 1964 . Microplankton from three Paleozoic formations in the Province of Leon, NW Spain . Leidse Geologische Mededelingen , 30 : 253 – 261 .
   Google Scholar
• _____ . 1968a . Considerations paléogéographiques à propos d'une association de microplanctontes de la série gothlandienne de Birmingham (Alabama U.S.A.) . Bulletin de la Société de géologique de France , 7 : 126 – 131 .
   Google Scholar
• _____ . 1968b . Palynologic microfossils of the Middle Silurian Maplewood Shale in New York . Revue de Micropaléontologie , 11 (2) : 61 – 71 .
   Google Scholar
• _____ . 1970a . Acritarchs and chitinozoans from the Silurian Ross Brook Formation, Nova Scotia . Journal of Geology , 78 : 745 – 749 .
   Web of Science ®Google Scholar
• _____ . 1970b . Distribution of selected Silurian acritarchs . Revista Española de Micropaleontologia, numero extra , 1 : 1 – 203 .
   Google Scholar
• CRAMER , F. H. and DÍEZ DE CRAMER , M.D.C.R. 1970 . Acritarchs from the Lower Silurian Neahga Formation, Niagara Peninsula, North America . Canadian Journal of Earth Sciences , 7 (4) : 1077 – 1085 .
   Web of Science ®Google Scholar
• _____ . 1972 . North American Silurian palynofacies and their spatial arrangement: Acritarchs . Palaeontographica, Abt. B , 138 (5–6) : 107 – 180 .
   Google Scholar
• DEUNFF , J. 1959 . Microorganismes planctoniques du primaire Armoricain. I. Ordovicien du Veryhac'h (presqu'ile de Crozon) . Bulletin de la Socitété géologique et mineralogique de Bretagne, nouvelle sér , 2 : 1 – 41 .
   Google Scholar
• _____ . 1961 . Quelques précisions concernant les Hystricho‐sphaeridées due Devonian du Canada . Compte rendu sommaire des séances de la Société géologique de France , 8 : 216 – 218 .
   Google Scholar
• DUFFIELD , S. L. and LEGAULT , J. A. Acritarch biostratigraphy of Upper Ordovician‐Lower Silurian rocks, Anticoti Island, Quebec: Preliminary results . Subcommission on Silurian Stratigraphy, Ordovician‐Silurian Boundary Working Group, Field Meeting, Anticosti, Quebec . Edited by: Lesperance , P. J. Vol. 2 , pp. 91 – 99 .
   Google Scholar
• _____ . 1982 . Gradational morphological series in Early Silurian acritarchs from Anticosti Island, Quebec . North American Paleontological Convention III , 1 : 137 – 141 .
   Google Scholar
• EISENACK , A. 1959 . Neotypen baltischer Silur‐Hystrichosphären und neue Arten . Palaeontographica , 112 (5–6) : 193 – 211 .
   Google Scholar
• EISENACK , A. , CRAMER , F. H. and DÍEZ , M. del C. R. 1973 . Katalog der fossilien Dinoflagellaten, Hystrichosphären und verwandten Mikrofossilien , 1 – 1104 . Stuttgart : Band III, Acritarcha 1. E. Schweizerbart'sche Verlagsbuchhandlung .
   Google Scholar
• ELEY , B. D. and LEGAULT , J. A. 1988 . Palynomorphs from the Manitoulin Formation (Early Llandoverian) of southern Ontario . Palynology , 12 : 49 – 63 .
   Google Scholar
• EVITT , W. R. 1963 . A discussion and proposals concerning fossil dinoflagellates, hystrichospheres and acritarchs I. II . National Academy of Sciences, Proceedingss , 49 : 158 – 164 . 298 – 302 .
   PubMed Web of Science ®Google Scholar
• FISHER , D. H. 1953 . A microflora in the Maplewood and Neahga Shales . Bulletin of the Buffalo Society of Natural History , 21 : 13 – 18 .
   Google Scholar
• FOERSTE , A. F. 1906 . The Silurian, Devonian and Irvine formations of east‐central Kentucky, with an account of their clays and limestones . Kentucky Geological Survey, Bulletin , 7 : 1 – 369 .
   Google Scholar
• GILLETTE , T. W. 1940 . Geology of the Clyde and Sodus Bay Quadrangles, New York . New York State Museum, Bulletin , 320 : 1 – 179 .
   Google Scholar
• _____ . 1947 . The Clinton of western and central New York . New York State Museum, Bulletin , 341 : 1 – 191 .
   Google Scholar
• HALL , J. 1843 . The Natural History of New York, Geology of the Fourth District . New York State Geological Survey , : 1 – 156 .
   Google Scholar
• HARTNAGEL , C. A. 1907 . Geologic map of the Rochester and Ontario beach quadrangles . New York State Museum, Bulletin , 114 : 1 – 35 .
   Google Scholar
• HUDDLE , J. W. 1967 . Silurian conodonts from Kentucky . United States Geological Survey Professional Paper , 575A : 377 (Geological Survey Research)
   Google Scholar
• JIA‐YU , R. , JOHNSON , M. E. and XUE‐CHANG , Y. 1984 . Early Silurian (Llandovery) sea level changes in the Upper Yangzi Region of central and southwestern China . Acta Palaeontologica Sinica , 23 (6) : 687 – 693 .
   Google Scholar
• JOHNSON , M. E. 1978 . Paleobathymetry and the community concept . Lethaia , 11 : 258
   Web of Science ®Google Scholar
• _____ . 1980 . Paleoecological structure in Early Silurian platform seas of the North American midcontinent . Palaeogeography, Palaeoclimatology, Palaeoecology , 30 : 191 – 216 .
   Web of Science ®Google Scholar
• _____ . 1981 . Correlation of Lower Silurian strata from the Michigan Upper Peninsula to Manitoulin Island . Canadian Journal of Earth Sciences , 18 (5) : 869 – 883 .
   Web of Science ®Google Scholar
• JOHNSON , M. E. and CAMPBELL , G.T. 1980 . Recurrent carbonate environments in the Lower Silurian of northern Michigan and their inter‐regional correlation . Journal of Paleontology , 54 (5) : 1041 – 1057 .
   Web of Science ®Google Scholar
• JOHNSON , M. E. and LESCINSKY , H. L. 1985 . Depositional dynamics of cyclic carbonates from the Interlake Group (Lower Silurian) of the Williston Basin . Palaios , 2 : 1 – 11 .
   Google Scholar
• JOHNSON , M. E. , COCKS , L.R.M. and COPPER , P. 1981 . Late Ordovician‐Early Silurian fluctuations in sea level from eastern Anticosti Island, Quebec . Lethaia , 14 : 73 – 82 .
   Web of Science ®Google Scholar
• JOHNSON , M. E. , JIA‐YU , R. and XUE‐CHANG , Y. 1985 . Intercontinental correlation by sea level events in the Early Silurian of North America and China (Yangtze Platform) . Geological Society of America, Bulletin , 96 : 1384 – 1397 .
   Web of Science ®Google Scholar
• JOHNSON , N. G. 1985 . Early Silurian palynomorphs from the Tuscarora Formation central Pennsylvania and their paleobotanical and geological significance . Review of Palaeobotany and Palynology , 45 : 307 – 360 .
   Web of Science ®Google Scholar
• LOEBLICH , A. R. JR. 1970 . Morphology, ultrastructure and distribution of Paleozoic acritarchs . North American Paleontological Convention, Proceedings , G : 705 – 788 . (Chicago, 1969)
   Google Scholar
• LOEBLICH , A. R. JR. and TAPPAN , H. 1969 . Acritarch excystment and surface ultrastructure, with descriptions of some Ordovician taxa . Revista Española de Micropaleontología , 1 (1) : 45 – 57 .
   Google Scholar
• 1976 . Some new and revised organic‐walled phytoplankton microfossil genera . Journal of Paleontology , 50 (2) : 301 – 308 .
   Web of Science ®Google Scholar
• MARTIN , F. 1969 . Les acritarches de l'Ordovicien et du Silurien beiges . Memoires del'Institut Royal des Sciences Naturelles de Belgique , 160 : 1 – 175 .
   Google Scholar
• McKERROW , W. S. and ZIEGLER , A. M. 1971 . The Lower Silurian paleogeography of New Brunswick and adjacent Areas . Journal of Geology , 79 (6) : 635 – 646 .
   Web of Science ®Google Scholar
• MILLER , M. A. and EAMES , L. E. 1982 . Palynomorphs from the Silurian Medina Group (Lower Llandovery) of the Niagara Gorge, Lewiston, New York, U.S.A . Palynology , 6 : 221 – 254 .
   Google Scholar
• MILLER , M. A. and WILLIAMS , G. L. 1988 . Velatasphaera hudsonii gen. et sp. nov., an Ordovician acritarch from Hudson Strait, North West Territories, Canada . Palynology , 12 : 121 – 127 .
   Google Scholar
• NEATHERY , T. L. and DRAHOVZAL , J. A. 1986 . Middle and Upper Ordovician stratigraphy of the southernmost Appalachians . Geological Society of America, Centennial Field Guide (Southeastern Section) , : 167 – 178 .
   Google Scholar
• REXROAD , C. B. , BRANSON , E. R. , SMITH , M. O. , SUMMERSON , C. and BOUCOT , A. J. 1965 . The Silurian Formations of east‐central Kentucky and adjacent Ohio . Kentucky Geological Survey, Bulletin , 2 : 1 – 33 .
   Google Scholar
• REXROAD , C. B. , KLEFFNER , M. A. , Rast , N. and Hay , H. B. 1984 . “ The Silurian stratigraphy of east‐central Kentucky and adjacent Ohio ” . In Geological Society of America, Field Trip (Annual Meeting) , 44 – 65 . Department of Geology, University of Kentucky and Kentucky Geological Survey .
   Google Scholar
• REXROAD , C. B. and NICOLL , R. S. 1972 . Conodonts from the Estill Shale (Silurian, Kentucky and Ohio) and their bearing on multi‐element taxonomy . Geologica et Paleontologica , 1 : 57 – 74 .
   Google Scholar
• RINDSBERG , A. K. and CHOWNS , T. M. 1986 . Ringgold Gap: Progradational sequences in the Ordovician and Silurian of northwest Georgia . Geological Society of America Centennial, Field Guide (Southeastern Section) , 6 : 159 – 162 .
   Google Scholar
• SARJEANT , W.A.S. and STANCLIFFE , R. P. 1994 . The Micrhystridium and Veryhachium complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): a taxonomic reconsideration . Micropaleontology , 40 (1) : 1 – 77 .
   Web of Science ®Google Scholar
• STANCLIFFE , R.P.W. and SARJEANT , W.A.S. 1994 . The acritarch genus Veryhachium Deunff 1954, emend. Sarjeant and Stancliffe 1994: a taxonomic restudy and a reassessment of its constituent species . Micropaleontology , 40 (3) : 223 – 241 .
   Web of Science ®Google Scholar
• STROTHER , P K. and TRAVERSE , A. 1979 . Plant microfossils from Llandoverian and Wenlockian rocks of Pennsylvania . Palynology , 3 : 1 – 21 .
   Google Scholar
• THUSU , B. 1973 . Acritarchs of the Middle Silurian Rochester Formation of Southern Ontario . Palaeontology , 16 (4) : 799 – 826 .
   Google Scholar
• THOMAS , W. A. and BEARCE , D. N. 1971 . Measured section, Red Mountain Expressway cut, Birmingham Alabama . Alabama Geological Society, 9th Annual Field Trip Guidebook , : 231 – 240 .
   Google Scholar
• THOMAS , W. A. and NEATHERY , T. L. 1980 . “ Tectonic famework of the Appalachian Orogen in Alabama ” . In Excursion in Southeastern Geology, v. 11,Geological Society of America , Annual Meeting Field Trip no. 21 Edited by: Frey , R. W. Vol. v. 11 , 465 – 526 .
   Google Scholar
• ULRICH , E. O. and BASSLER , R. S. 1923 . American Silurian Formations . Maryland Geological Survey , : 233 – 270 .
   Google Scholar
• VAN DER VOO , R. 1988 . Paleozoic paleogeography of North America, Gondwana and intervening displaced terranes: comparisons of paleomagnetism with paleoclimatology and biogeographical patterns . Geological Society of America, Bulletin , 100 : 311 – 324 .
   Web of Science ®Google Scholar
• VAVRDOVÁ , M. 1986 . New genera of acritarchs from the Bohemian Ordovician . Casopis pro mineralogii a geologii , 31 (4) : 349 – 360 .
   Google Scholar
• WOOD , G. D. 1987 . Acritarchs and chitinozoans from the Plum Creek Shale, Oldham Limestone and Lulbegrud Shale Members of the Noland Formation (Lower Silurian), Kentucky U.S.A. . Palynology , 11 : 258 – 259 .
   Google Scholar
• _____ . 1988a . Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonie Dolomite . American Association of Stratigraphic Palynologists , : 64 (Annual Meeting)
   Google Scholar
• _____ . Paleoecology and biostratigraphy of Lower Silurian (Llandovery‐Wenlock) acritarchs from the Mid‐Continent, United States . 7th International Palynological Congress . pp. 182 Abstracts
   Google Scholar
• _____ . Possible evidence for life cycle stages in Lower Silurian organic‐walled microphytoplankton, Kentucky, U.S. A. American Association of Stratigraphic Palynologists, Annual Meeting . Baton Rouge . pp. 91
   Google Scholar
• WOOD , G. D. , GABRIEL , A. M. and LAWSON , J. C. “ Palynological techniques‐processing and microscopy ” . In Palynology: principles and applications , Edited by: Jansonius , J. and McGregor , D. C. Vol. V. 1 , American Association of Stratigraphic Palynologists Foundation . in press
   Google Scholar
• ZIEGLER , A. M. 1965 . Silurian marine communities and their environmental significance . Nature , 207 : 270 – 272 .
   Web of Science ®Google Scholar
• ZIEGLER , A. M. , COCKS , L.R.M. and BAMBACH , R. 1968 . The composition and structure of Lower Silurian marine communities . Lethaia , 1 : 1 – 27 .
   Web of Science ®Google Scholar
• ZIEGLER , A. M. , COCKS , L.R.M. and MCKERROW , W. S. 1968 . The Llandovery transgressive of the Welsh Borderland . Palaeontology , 11 (5) : 736 – 782 .
   Google Scholar