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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
organization
publishing date
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
2010-12-30 08:53:00
date last changed
2018-05-29 09:33:55
@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},
  keyword      = {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},
  volume       = {34},
  year         = {2010},
}