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Record Nr. |
UNINA9910457661203321 |
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Autore |
Kozlowska-Dawidziuk Anna |
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Titolo |
Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada [[electronic resource]] |
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Pubbl/distr/stampa |
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Ottawa, : NRC Research Press, c2004 |
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ISBN |
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1-280-45220-X |
9786610452200 |
1-4593-0264-8 |
0-660-19327-2 |
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Descrizione fisica |
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1 online resource (151 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Graptolites |
Chordata, Fossil |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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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; Genus Acanthograptus Spencer, 1878; Genus Thallograptus Ruedemann, 1925; Genus Dendrograptus Hall, 1858; Order TUBOIDEA Kozlowski, 1938; Genus Epigraptus Eisenack, 1941; Order GRAPTOLOIDEA Lapworth, 1873; Suborder VIRGELLINA Fortey and Cooper, 1986; References |
Appendix 1: Distribution of species of flattened graptolites in each sectionAppendix 2: Distribution of isolated, three-dimensionally preserved graptolites in each section; Plates 1-46 |
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Sommario/riassunto |
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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. |
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