A new genus and two new species of dinoflagellate cysts from lower Eocene marine sediments of the Wilkes Land Margin, Antarctica

Peter K. Bijl; Henk Brinkhuis

doi:10.1016/j.revpalbo.2015.05.004

A new genus and two new species of dinoflagellate cysts from lower Eocene marine sediments of the Wilkes Land Margin, Antarctica

Peter K. Bijl^*, Henk Brinkhuis

^*Corresponding author for this work

Royal Netherlands Institute for Sea Research - NIOZ

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Integrated Ocean Drilling Program (IODP) Expedition 318 recovered lower Eocene sediments in Hole U1356A from the continental rise of the Wilkes Land Margin, Antarctica. These sediments yielded a new genus of organic-walled dinoflagellate cysts (. Adeliesphaera gen. nov.). We tentatively place this new genus within the suborder Gonyaulacineae, family Areoligeraceae, based on the obligate apical archeopyle, the asymmetric antapical geometry and the left-side offset sulcal notch. We herein describe the type species of Adeliesphaera gen. nov., Adeliesphaera ohanlonii sp. nov., as well as a new species of Turbiosphaera, Turbiosphaera guersteinae sp. nov. The short stratigraphic range of both species (53.7-53.4. Ma and 53.1-52.9. Ma, respectively) qualifies them as potentially important regional Southern Ocean stratigraphic markers for high-resolution age control.

Original language	English
Pages (from-to)	88-97
Number of pages	10
Journal	Review of Palaeobotany and Palynology
Volume	220
DOIs	https://doi.org/10.1016/j.revpalbo.2015.05.004
Publication status	Published - 1 Sept 2015

Keywords

Antarctic Margin
Biostratigraphy
Early Eocene
Organic walled dinoflagellate cyst taxonomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.revpalbo.2015.05.004

1-s2.0-S0034666715000949-mainFinal published version, 2.94 MBLicence: Taverne

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title = "A new genus and two new species of dinoflagellate cysts from lower Eocene marine sediments of the Wilkes Land Margin, Antarctica",

abstract = "Integrated Ocean Drilling Program (IODP) Expedition 318 recovered lower Eocene sediments in Hole U1356A from the continental rise of the Wilkes Land Margin, Antarctica. These sediments yielded a new genus of organic-walled dinoflagellate cysts (. Adeliesphaera gen. nov.). We tentatively place this new genus within the suborder Gonyaulacineae, family Areoligeraceae, based on the obligate apical archeopyle, the asymmetric antapical geometry and the left-side offset sulcal notch. We herein describe the type species of Adeliesphaera gen. nov., Adeliesphaera ohanlonii sp. nov., as well as a new species of Turbiosphaera, Turbiosphaera guersteinae sp. nov. The short stratigraphic range of both species (53.7-53.4. Ma and 53.1-52.9. Ma, respectively) qualifies them as potentially important regional Southern Ocean stratigraphic markers for high-resolution age control.",

keywords = "Antarctic Margin, Biostratigraphy, Early Eocene, Organic walled dinoflagellate cyst taxonomy",

author = "Bijl, {Peter K.} and Henk Brinkhuis",

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doi = "10.1016/j.revpalbo.2015.05.004",

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AU - Bijl, Peter K.

AU - Brinkhuis, Henk

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Integrated Ocean Drilling Program (IODP) Expedition 318 recovered lower Eocene sediments in Hole U1356A from the continental rise of the Wilkes Land Margin, Antarctica. These sediments yielded a new genus of organic-walled dinoflagellate cysts (. Adeliesphaera gen. nov.). We tentatively place this new genus within the suborder Gonyaulacineae, family Areoligeraceae, based on the obligate apical archeopyle, the asymmetric antapical geometry and the left-side offset sulcal notch. We herein describe the type species of Adeliesphaera gen. nov., Adeliesphaera ohanlonii sp. nov., as well as a new species of Turbiosphaera, Turbiosphaera guersteinae sp. nov. The short stratigraphic range of both species (53.7-53.4. Ma and 53.1-52.9. Ma, respectively) qualifies them as potentially important regional Southern Ocean stratigraphic markers for high-resolution age control.

AB - Integrated Ocean Drilling Program (IODP) Expedition 318 recovered lower Eocene sediments in Hole U1356A from the continental rise of the Wilkes Land Margin, Antarctica. These sediments yielded a new genus of organic-walled dinoflagellate cysts (. Adeliesphaera gen. nov.). We tentatively place this new genus within the suborder Gonyaulacineae, family Areoligeraceae, based on the obligate apical archeopyle, the asymmetric antapical geometry and the left-side offset sulcal notch. We herein describe the type species of Adeliesphaera gen. nov., Adeliesphaera ohanlonii sp. nov., as well as a new species of Turbiosphaera, Turbiosphaera guersteinae sp. nov. The short stratigraphic range of both species (53.7-53.4. Ma and 53.1-52.9. Ma, respectively) qualifies them as potentially important regional Southern Ocean stratigraphic markers for high-resolution age control.

KW - Antarctic Margin

KW - Biostratigraphy

KW - Early Eocene

KW - Organic walled dinoflagellate cyst taxonomy

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SN - 0034-6667

VL - 220

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JO - Review of Palaeobotany and Palynology

JF - Review of Palaeobotany and Palynology

ER -

A new genus and two new species of dinoflagellate cysts from lower Eocene marine sediments of the Wilkes Land Margin, Antarctica

Abstract

Keywords

UN SDGs

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