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 journalArticle

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)
JournalPalynology
DOIs
StateAccepted/In press - 2020

Keywords

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

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