Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes

Taoufik Radi; Sophie Bonnet; Marc André Cormier; Anne de Vernal; Lise Durantou; Étienne Faubert; Martin J. Head; Maryse Henry; Vera Pospelova; André Rochon; Nicolas Van Nieuwenhove

doi:10.1016/j.marmicro.2012.11.001

Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes

Taoufik Radi, Sophie Bonnet, Marc André Cormier, Anne de Vernal, Lise Durantou, Étienne Faubert, Martin J. Head, Maryse Henry, Vera Pospelova, André Rochon, Nicolas Van Nieuwenhove

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

66 Scopus citations

Abstract

Round brown spiny dinoflagellate cysts from high latitudes of the Northern Hemisphere have been examined in order to define criteria for their determination during routine counts. The round brown spiny cysts belong to several taxa including the paleontological genera Echinidinium and Islandinium and the biological genera Oblea, Polykrikos, and Protoperidinium. Here, we present a synthesis of descriptions with remarks on the morphology, taxonomy, nomenclature and ecology of cysts from the observations of samples collected in high latitude environments. These observations have led us to establish a practical identification key based on the most distinct morphological features that characterize all specimens. These features exclude the archeopyle, which is rarely observed. Two new cyst types are described from Holocene and Pleistocene sediments of the North Pacific and North Atlantic oceans, respectively. The identification key permits the following to be distinguished: ". Echinidinium aculeatum", Echinidinium delicatum, Echinidinium granulatum, Echinidinium karaense, Echinidinium sleipnerensis, Echinidinium ". transparantum". /zonneveldiae, Islandinium brevispinosum, Islandinium? cezare, and Islandinium minutum, the cysts of Oblea acanthocysta and Polykrikos hartmannii (al. Pheopolykrikos hartmannii), and the new cyst types Echinidinium? sp. A and Echinidinium? sp. B.

Original language	English (US)
Pages (from-to)	41-57
Number of pages	17
Journal	Marine Micropaleontology
Volume	98
DOIs	https://doi.org/10.1016/j.marmicro.2012.11.001
State	Published - Jan 2013
Externally published	Yes

Bibliographical note

Funding Information:
We thank the Integrated Ocean Drilling Program (IODP), the international Innovative North Pacific Experiment project (INOPEX), and the MALINA project for providing us with sedimentary samples. NV is grateful to J. Matthiessen (AWI) for help in identifying the cyst Echnidinium sp. A. Financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC) and from the Fonds de la Recherche sur la Nature et les technologies of Quebec (FQRNT) is acknowledged. We are most grateful to K. Matsuoka for supplying photographs of Polykrikos hartmannii, and to the reviewers for their constructive criticism.

Keywords

Determination key
Echinidinium
Islandinium
Paleoecology
Round brown spiny cysts
Taxonomy

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10.1016/j.marmicro.2012.11.001

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Radi, T., Bonnet, S., Cormier, M. A., de Vernal, A., Durantou, L., Faubert, É., Head, M. J., Henry, M., Pospelova, V., Rochon, A., & Van Nieuwenhove, N. (2013). Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes. Marine Micropaleontology, 98, 41-57. https://doi.org/10.1016/j.marmicro.2012.11.001

Radi, T, Bonnet, S, Cormier, MA, de Vernal, A, Durantou, L, Faubert, É, Head, MJ, Henry, M, Pospelova, V, Rochon, A & Van Nieuwenhove, N 2013, 'Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes', Marine Micropaleontology, vol. 98, pp. 41-57. https://doi.org/10.1016/j.marmicro.2012.11.001

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title = "Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes",

abstract = "Round brown spiny dinoflagellate cysts from high latitudes of the Northern Hemisphere have been examined in order to define criteria for their determination during routine counts. The round brown spiny cysts belong to several taxa including the paleontological genera Echinidinium and Islandinium and the biological genera Oblea, Polykrikos, and Protoperidinium. Here, we present a synthesis of descriptions with remarks on the morphology, taxonomy, nomenclature and ecology of cysts from the observations of samples collected in high latitude environments. These observations have led us to establish a practical identification key based on the most distinct morphological features that characterize all specimens. These features exclude the archeopyle, which is rarely observed. Two new cyst types are described from Holocene and Pleistocene sediments of the North Pacific and North Atlantic oceans, respectively. The identification key permits the following to be distinguished: {"}. Echinidinium aculeatum{"}, Echinidinium delicatum, Echinidinium granulatum, Echinidinium karaense, Echinidinium sleipnerensis, Echinidinium {"}. transparantum{"}. /zonneveldiae, Islandinium brevispinosum, Islandinium? cezare, and Islandinium minutum, the cysts of Oblea acanthocysta and Polykrikos hartmannii (al. Pheopolykrikos hartmannii), and the new cyst types Echinidinium? sp. A and Echinidinium? sp. B.",

keywords = "Determination key, Echinidinium, Islandinium, Paleoecology, Round brown spiny cysts, Taxonomy",

author = "Taoufik Radi and Sophie Bonnet and Cormier, {Marc Andr{\'e}} and {de Vernal}, Anne and Lise Durantou and {\'E}tienne Faubert and Head, {Martin J.} and Maryse Henry and Vera Pospelova and Andr{\'e} Rochon and {Van Nieuwenhove}, Nicolas",

note = "Funding Information: We thank the Integrated Ocean Drilling Program (IODP), the international Innovative North Pacific Experiment project (INOPEX), and the MALINA project for providing us with sedimentary samples. NV is grateful to J. Matthiessen (AWI) for help in identifying the cyst Echnidinium sp. A. Financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC) and from the Fonds de la Recherche sur la Nature et les technologies of Quebec (FQRNT) is acknowledged. We are most grateful to K. Matsuoka for supplying photographs of Polykrikos hartmannii, and to the reviewers for their constructive criticism.",

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doi = "10.1016/j.marmicro.2012.11.001",

language = "English (US)",

volume = "98",

pages = "41--57",

journal = "Marine Micropaleontology",

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T1 - Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes

AU - Radi, Taoufik

AU - Bonnet, Sophie

AU - Cormier, Marc André

AU - de Vernal, Anne

AU - Durantou, Lise

AU - Faubert, Étienne

AU - Head, Martin J.

AU - Henry, Maryse

AU - Pospelova, Vera

AU - Rochon, André

AU - Van Nieuwenhove, Nicolas

N1 - Funding Information: We thank the Integrated Ocean Drilling Program (IODP), the international Innovative North Pacific Experiment project (INOPEX), and the MALINA project for providing us with sedimentary samples. NV is grateful to J. Matthiessen (AWI) for help in identifying the cyst Echnidinium sp. A. Financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC) and from the Fonds de la Recherche sur la Nature et les technologies of Quebec (FQRNT) is acknowledged. We are most grateful to K. Matsuoka for supplying photographs of Polykrikos hartmannii, and to the reviewers for their constructive criticism.

PY - 2013/1

Y1 - 2013/1

N2 - Round brown spiny dinoflagellate cysts from high latitudes of the Northern Hemisphere have been examined in order to define criteria for their determination during routine counts. The round brown spiny cysts belong to several taxa including the paleontological genera Echinidinium and Islandinium and the biological genera Oblea, Polykrikos, and Protoperidinium. Here, we present a synthesis of descriptions with remarks on the morphology, taxonomy, nomenclature and ecology of cysts from the observations of samples collected in high latitude environments. These observations have led us to establish a practical identification key based on the most distinct morphological features that characterize all specimens. These features exclude the archeopyle, which is rarely observed. Two new cyst types are described from Holocene and Pleistocene sediments of the North Pacific and North Atlantic oceans, respectively. The identification key permits the following to be distinguished: ". Echinidinium aculeatum", Echinidinium delicatum, Echinidinium granulatum, Echinidinium karaense, Echinidinium sleipnerensis, Echinidinium ". transparantum". /zonneveldiae, Islandinium brevispinosum, Islandinium? cezare, and Islandinium minutum, the cysts of Oblea acanthocysta and Polykrikos hartmannii (al. Pheopolykrikos hartmannii), and the new cyst types Echinidinium? sp. A and Echinidinium? sp. B.

AB - Round brown spiny dinoflagellate cysts from high latitudes of the Northern Hemisphere have been examined in order to define criteria for their determination during routine counts. The round brown spiny cysts belong to several taxa including the paleontological genera Echinidinium and Islandinium and the biological genera Oblea, Polykrikos, and Protoperidinium. Here, we present a synthesis of descriptions with remarks on the morphology, taxonomy, nomenclature and ecology of cysts from the observations of samples collected in high latitude environments. These observations have led us to establish a practical identification key based on the most distinct morphological features that characterize all specimens. These features exclude the archeopyle, which is rarely observed. Two new cyst types are described from Holocene and Pleistocene sediments of the North Pacific and North Atlantic oceans, respectively. The identification key permits the following to be distinguished: ". Echinidinium aculeatum", Echinidinium delicatum, Echinidinium granulatum, Echinidinium karaense, Echinidinium sleipnerensis, Echinidinium ". transparantum". /zonneveldiae, Islandinium brevispinosum, Islandinium? cezare, and Islandinium minutum, the cysts of Oblea acanthocysta and Polykrikos hartmannii (al. Pheopolykrikos hartmannii), and the new cyst types Echinidinium? sp. A and Echinidinium? sp. B.

KW - Determination key

KW - Echinidinium

KW - Islandinium

KW - Paleoecology

KW - Round brown spiny cysts

KW - Taxonomy

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DO - 10.1016/j.marmicro.2012.11.001

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ER -

Operational taxonomy and (paleo-)autecology of round, brown, spiny dinoflagellate cysts from the Quaternary of high northern latitudes

Abstract

Bibliographical note

Keywords

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