Memorial University DAI: Taxonomy and biostratigraphy of Middle Ordovician (Llanvirn) graptolites from the Table Cove and Black Cove formations, western Newfoundland

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Title	Taxonomy and biostratigraphy of Middle Ordovician (Llanvirn) graptolites from the Table Cove and Black Cove formations, western Newfoundland
Author	Taylor, Rod Stephen, 1969-
Description	Thesis (M.Sc.)--Memorial University of Newfoundland, 1997. Earth Sciences
Date	1997
Pagination	ix, 258 leaves : ill., map
Subject	Graptolites--Newfoundland and Labrador, Western; Paleontology--Ordovician
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland. Dept. of Earth Sciences
Discipline	Earth Sciences
Language	Eng
Spatial Coverage	Canada--Newfoundland and Labrador
Temporal Coverage	Paleozoic Era--Ordovician Period
Notes	Bibliography: leaves 201-212.
Abstract	This thesis provides the first full taxonomic treatment of graptolites from the Middle Ordovician (Llanvirn) Table Head and Goose Tickle groups of western Newfoundland. These rocks represent the upper portion of an autochthonous sedimentary and volcanic sequence that was deposited in a shallow water, near-shore environment during the rifting and passive drifting of the continental margin. Seventeen taxa from these strata are discussed in detail, based almost exclusively on flattened material, including Glossograptus sp. nov. Specimen preservation is best in the Port au Port region, quality decreasing to the east and the north. -- There is good correlation between graptolite assemblages at the various exposures of the Table Cove and Black Cove formations, but there appears to be insufficient vertical change through the sequences to permit faunal subdivision of this interval (equivalent to the Australian Darriwilian 3). -- The graptolite assemblages found in these rocks suggest a low latitude, warm water setting (Pacific Province) at the time of formation. However, the increased number of pandemic species compared to neighbouring Early Ordovician (Arenig) sequences in western Newfoundlamd suggests that provincialism was becoming less pronounced at this time.
Type	Text
Resource Type	Electronic thesis or dissertation
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	a1212612
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(34.88 MB) -- http://collections.mun.ca/PDFs/theses/RodStevenTaylor.pdf
CONTENTdm file name	34416.cpd