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A new early Paleocene dinoflagellate cyst species, Trithyrodinium partridgei: its biostratigraphic significance and palaeoecology

Willumsen, Pi LU and Vajda, Vivi LU (2010) In Alcheringa 34(4). p.523-538
Abstract
A palynological investigation of lower Paleocene (lower Teurian) marine sediments of the Abbotsford Formation, exposed in the Fairfield Quarry, Dunedin, New Zealand, reveals a well-preserved association of dinoflagellate cysts and miospores. Thirty-six dinoflagellate species representing 26 genera were recorded, including one new peridinioid dinoflagellate species, Trithyrodinium partridgei characterized by a three-layered wall and a distinct brown, foveolate mesophragm. Trithyrodinium partridgei has a narrow range and at Fairfield Quarry co-occurs with typical New Zealand late Danian to Selandian index species such as Glaphyrocysta perforata and Alterbidinium pentaradiatum; hence it may prove an additional useful stratigraphic marker. The... (More)
A palynological investigation of lower Paleocene (lower Teurian) marine sediments of the Abbotsford Formation, exposed in the Fairfield Quarry, Dunedin, New Zealand, reveals a well-preserved association of dinoflagellate cysts and miospores. Thirty-six dinoflagellate species representing 26 genera were recorded, including one new peridinioid dinoflagellate species, Trithyrodinium partridgei characterized by a three-layered wall and a distinct brown, foveolate mesophragm. Trithyrodinium partridgei has a narrow range and at Fairfield Quarry co-occurs with typical New Zealand late Danian to Selandian index species such as Glaphyrocysta perforata and Alterbidinium pentaradiatum; hence it may prove an additional useful stratigraphic marker. The terrestrial palynomorph assemblage from samples within the range of Trithyrodinium partridgei includes 36 spore-pollen species dominated by the podocarp pollen Phyllocladidites mawsonii. The presence of Nothofagidites waipawaensis and Tricolpites phillipsii confirms a Paleocene age for the assemblage. The abundance of terrestrial palynomorphs and the composition of the dinocyst assemblages suggest a marine nearshore depositional environment. (Less)
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author
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organization
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type
Contribution to journal
publication status
published
subject
keywords
palaeoecology, New Zealand, biostratigraphy, miospores, dinoflagellate cyst, Paleocene, palynology
in
Alcheringa
volume
34
issue
4
pages
523 - 538
publisher
Taylor & Francis
external identifiers
  • wos:000284475500007
  • scopus:78649477522
ISSN
0311-5518
DOI
10.1080/03115518.2010.519258
language
English
LU publication?
yes
id
943a2d87-817c-4dd0-b1b1-bd0546d78ef2 (old id 1752296)
date added to LUP
2016-04-01 10:06:29
date last changed
2022-02-09 22:45:31
@article{943a2d87-817c-4dd0-b1b1-bd0546d78ef2,
  abstract     = {{A palynological investigation of lower Paleocene (lower Teurian) marine sediments of the Abbotsford Formation, exposed in the Fairfield Quarry, Dunedin, New Zealand, reveals a well-preserved association of dinoflagellate cysts and miospores. Thirty-six dinoflagellate species representing 26 genera were recorded, including one new peridinioid dinoflagellate species, Trithyrodinium partridgei characterized by a three-layered wall and a distinct brown, foveolate mesophragm. Trithyrodinium partridgei has a narrow range and at Fairfield Quarry co-occurs with typical New Zealand late Danian to Selandian index species such as Glaphyrocysta perforata and Alterbidinium pentaradiatum; hence it may prove an additional useful stratigraphic marker. The terrestrial palynomorph assemblage from samples within the range of Trithyrodinium partridgei includes 36 spore-pollen species dominated by the podocarp pollen Phyllocladidites mawsonii. The presence of Nothofagidites waipawaensis and Tricolpites phillipsii confirms a Paleocene age for the assemblage. The abundance of terrestrial palynomorphs and the composition of the dinocyst assemblages suggest a marine nearshore depositional environment.}},
  author       = {{Willumsen, Pi and Vajda, Vivi}},
  issn         = {{0311-5518}},
  keywords     = {{palaeoecology; New Zealand; biostratigraphy; miospores; dinoflagellate cyst; Paleocene; palynology}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{523--538}},
  publisher    = {{Taylor & Francis}},
  series       = {{Alcheringa}},
  title        = {{A new early Paleocene dinoflagellate cyst species, Trithyrodinium partridgei: its biostratigraphic significance and palaeoecology}},
  url          = {{http://dx.doi.org/10.1080/03115518.2010.519258}},
  doi          = {{10.1080/03115518.2010.519258}},
  volume       = {{34}},
  year         = {{2010}},
}