
Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada.
Title:
Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada.
Author:
Lenz, Alfred.
ISBN:
9780660193274
Personal Author:
Physical Description:
1 online resource (151 pages)
Contents:
Abstract / Résumé -- Acknowledgments -- Introduction -- Stratigraphy -- Non-graptolite faunas -- Biostratigraphy -- Biozonal correlation, species diversity, and biogeography -- Evolutionary developments in Ludlow and Pridoli graptolites -- Systematic paleontology -- Order DENDROIDEA Nicholson, 1872 -- Genus Dictyonema Hall, 1851 -- Dictyonema sp. -- Genus Acanthograptus Spencer, 1878 -- Acanthograptus? sp. -- Genus Thallograptus Ruedemann, 1925 -- Thallograptus? sp.1 -- Thallograptus? sp.2 -- Thallograptus? sp.3 -- Thallograptus sp. 4 -- Genus Dendrograptus Hall, 1858 -- Dendrograptus sp. -- Order TUBOIDEA Kozlowski, 1938 -- Genus Epigraptus Eisenack, 1941 -- Epigraptus? sp. -- Order GRAPTOLOIDEA Lapworth, 1873 -- Suborder VIRGELLINA Fortey and Cooper, 1986 -- Superfamily DIPLOGRAPTOIDEA Lapworth, 1873 (sensu Mitchell, 1987) -- Family RETIOLITIDAE Lapworth, 1873 -- Subfamily PLECTOGRAPTINAE Boucek and Münch, 1952 -- Genus Neogothograptus Kozlowska-Dawidziuk, 1995 -- Neogothograptus purus labiatus n. subsp. -- Neogothograptus alatiformis n. sp. -- Neogothograptus melchini n. sp. -- Neogothograptus thorsteinssoni n. sp. -- Genus Holoretiolites Eisenack, 1951 -- Holoretiolites manckoides Kozlowska-Dawidziuk, 1995 -- Holoretiolites atrabecularis Kozlowska-Dawidziuk, 1995 -- Genus Spinograptus Boucek and Münch, 1952 -- Spinograptus spinosus (Wood, 1900) -- Spinograptus clathrospinosus (Eisenack, 1951) -- Spinograptus quadratus (Lenz, 1993) -- Genus Plectograptus Moberg and Törnquist, 1909 -- Plectograptus macilentus (Törnquist, 1887) -- Plectograptus? sp. -- Family MONOGRAPTIDAE Lapworth, 1873 -- Genus Pristiograptus Jaekel, 1889 -- Pristiograptus dubius (Suess, 1851) -- Pristiograptus fragmentalis (Boucek, 1936) -- Genus Pseudomonoclimacis Mikhailova, 1975 -- Pseudomonoclimacis bispinosus Lenz, 1988 -- Pseudomonoclimacis? brevicucullus n. sp.
Pseudomonoclimacis dalejensis dalejensis (Boucek, 1936) -- Pseudomonoclimacis dalejensis rectus n. subsp. -- Genus Monograptus Geinitz, 1852 -- Monograptus cf. beatus Koren™, 1983 -- Monograptus bessobaensis Koren™, 1986 -- Monograptus birchensis Berry and Murphy, 1975 -- Monograptus bouceki Príbyl, 1940 -- Monograptus ceratus Lenz, 1988 -- Monograptus microdon curvatus n. subsp. -- Monograptus cf. uncinatus Tullberg, 1883 -- Genus Colonograptus Príbyl, 1942 -- Colonograptus colonus heathcotensis (Rickards and Sandford, 1998) -- Genus Saetograptus Príbyl, 1942 -- Saetograptus linearis (Boucek, 1936) -- Saetograptus varians (Wood, 1900) -- Genus Neocolonograptus Urbanek, 1997 -- Neocolonograptus branikensis (Jaeger, 1986) -- Neocolonograptus norfordi (Lenz and Jackson, 1971) -- Neocolonograptus parultimus (Jaeger, 1975) -- Neocolonograptus? transgrediens (Perner, 1899) -- Neocolonograptus ultimus (Perner, 1899) -- Genus Bohemograptus Príbyl, 1967 -- Bohemograptus bohemicus bohemicus (Barrande, 1850) -- Bohemograptus bohemicus tenuis (Boucek, 1936) -- Bohemograptus garratti Rickards, Davidson, and Banks, 1993 -- Bohemograptus? helicoides (Jackson and Lenz, 1972) -- Bohemograptus praecornutus Urbanek, 1970 -- Genus Crinitograptus Rickards, 1995 -- Crinitograptus operculatus (Münch, 1938) -- Crinitograptus cf. operculatus (Münch, 1938) -- Genus Formosograptus Boucek, Mihajlovi , and Veselinovic, 1976 -- Formosograptus formosus (Boucek, 1931) -- Genus Neodiversograptus Urbanek, 1963 -- Neodiversograptus? cf.beklemishevi Urbanek, 1963 -- Genus Lobograptus Urbanek, 1958 -- Lobograptus parascanicus (Kühne, 1955) -- Lobograptus progenitor Urbanek, 1966 -- Lobograptus scanicus (Tullberg, 1883) -- Genus Linograptus Frech, 1897 -- Linograptus posthumus tenuis Jaeger 1959 -- Genus Prolinograptus Rickards and Wright, 1997.
Prolinograptus packhami Rickards and Wright, 1997? -- References -- Appendix 1: Distribution of species of flattened graptolites in each section -- Appendix 2: Distribution of isolated, three-dimensionally preserved graptolites in each section -- Plates 1-46.
Abstract:
Graptolites flourished from earliest Ordovician to Early Devonian, a time range of about 90 million years, and were widely distributed as marine benthic and planktonic colonial organisms around then-world. They were diverse and rapidly evolving and, as such, make excellent "index fossils" for relative age-dating of their enclosing basinal rocks.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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