Hiddenocysta matsuokae gen. et sp. nov. from the Holocene of Vancouver Island, British Columbia, Canada

Pieter R. Gurdebeke, Kenneth Neil Mertens, Pjotr Meyvisch, Kara Bogus, Vera Pospelova, Stephen Louwye

Research output: Contribution to journalArticlepeer-review

Abstract

A new dinoflagellate cyst genus and species are described here as Hiddenocysta gen. nov. and Hiddenocysta matsuokae sp. nov. from Holocene sediments in a core from the west coast of Vancouver Island (British Columbia, Canada). The genus Hiddenocysta encompasses spherical to ovoid skolochorate cysts, characterized by a gonyaulacoid plate pattern and a 2P precingular archeopyle. The species H. matsuokae is characterized by a granular wall and slender trifurcate processes with heavily perforated process bases. Two end members are described here based on process morphology and number of processes (formas 1 and 2). Cyst wall chemistry is analyzed using micro-Fourier transform infrared (FTIR) spectroscopy and reveals a unique dinosporin composition consistent with a gonyaulacoid autotrophic feeding strategy.

Original languageEnglish (US)
Pages (from-to)103-114
Number of pages12
JournalPalynology
Volume45
Issue number1
DOIs
StatePublished - 2021

Bibliographical note

Funding Information:
We are grateful to Dr. Audrey Dallimore for the sediment core collection and for sharing this material with us. Victor Pospelov and Alison Thomas are thanked for their help with sediment sampling and palynological preparation at the University of Victoria. VP acknowledges funding support from the Natural Science and Engineering Research Council of Canada (NSERC) Discovery Grant. The Regional Council of Brittany, the General Council of Finist?re and the urban community of Concarneau-Cornouaille-Agglom?ration are acknowledged for the funding of the Sigma 300 FE-SEM of the station of Marine Biology in Concarneau that was used in this study. The Research Foundation Flanders (Fonds Wetenschappelijk Onderzoek, Hercules Foundation) is thanked for funding the micro-FTIR facility (FT-IMAGER, project number AUGE/13/16), and Henk Vrielinck is thanked for technical assistance and discussion of the micro-FTIR data. We thank Dr. Kazumi Matsuoka for sharing his observations from Japanese coastal waters. Stijn De Schepper and two anonymous referees are gratefully acknowledged for reviewing the manuscript.

Funding Information:
We are grateful to Dr. Audrey Dallimore for the sediment core collection and for sharing this material with us. Victor Pospelov and Alison Thomas are thanked for their help with sediment sampling and palynological preparation at the University of Victoria. VP acknowledges funding support from the Natural Science and Engineering Research Council of Canada (NSERC) Discovery Grant. The Regional Council of Brittany, the General Council of Finistère and the urban community of Concarneau-Cornouaille-Agglomération are acknowledged for the funding of the Sigma 300 FE-SEM of the station of Marine Biology in Concarneau that was used in this study. The Research Foundation Flanders (Fonds Wetenschappelijk Onderzoek, Hercules Foundation) is thanked for funding the micro-FTIR facility (FT-IMAGER, project number AUGE/13/16), and Henk Vrielinck is thanked for technical assistance and discussion of the micro-FTIR data. We thank Dr. Kazumi Matsuoka for sharing his observations from Japanese coastal waters. Stijn De Schepper and two anonymous referees are gratefully acknowledged for reviewing the manuscript.

Publisher Copyright:
© 2020 AASP–The Palynological Society.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • FTIR
  • North Pacific ocean
  • dinoflagellate cyst
  • gonyaulacoid
  • taxonomy
  • wall composition

Fingerprint

Dive into the research topics of 'Hiddenocysta matsuokae gen. et sp. nov. from the Holocene of Vancouver Island, British Columbia, Canada'. Together they form a unique fingerprint.

Cite this