Islandinium pacificum sp. nov., a new dinoflagellate cyst from the upper Quaternary of the northeast Pacific - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Palynology Année : 2020

Islandinium pacificum sp. nov., a new dinoflagellate cyst from the upper Quaternary of the northeast Pacific

Pieter R. Gurdebeke
  • Fonction : Auteur
Vera Pospelova
  • Fonction : Auteur
Nicolas van Nieuwenhove
  • Fonction : Auteur
Stephen Louwye
  • Fonction : Auteur

Résumé

Round brown process-bearing cysts (RBPC) produced by dinoflagellates (Dinophyceae) occur as an important part of assemblage diversities in seafloor sediments worldwide. Here a new species, Islandinium pacificum, is described from surface sediment samples from coastal waters of British Columbia (Canada). Additional observations are made on material from the Holocene of Kyuquot Sound (Vancouver Island, Canada) and the Eemian of the Vøring Plateau (North Atlantic). The cysts have a smooth wall and bear acuminate processes with barbs. Incubation experiments reveal an affinity with the motile stage Protoperidinium mutsuense. The ecology of the new species is specified.
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Dates et versions

hal-04202327 , version 1 (11-09-2023)

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Citer

Pieter R. Gurdebeke, Kenneth Mertens, Vera Pospelova, Nicolas van Nieuwenhove, Stephen Louwye. Islandinium pacificum sp. nov., a new dinoflagellate cyst from the upper Quaternary of the northeast Pacific. Palynology, 2020, 44 (1), pp.80-93. ⟨10.1080/01916122.2018.1549118⟩. ⟨hal-04202327⟩
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