Work

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

Year: 2020

Type: article

Abstract: Pieter R. Gurdebekea* , Kenneth Neil Mertensb , Pjotr Meyvischa , Kara Bogusc , Vera Pospelovade & Stephen Louwyea a Department of Geology, Ghent University, Belgium; b Ifremer, LER BO, Station de Biologie Marine, Concarneau CEDEX, France; c Camborne School of Mines, University of Exeter, Penryn, Cornwall, UK; d Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA; e School of Earth and Ocean Sciences, University of Victoria, Victoria, British Columbia, CanadaSupplemental data for this article is available online at https://doi.org/10.1080/01916122.2020.1750500.CONTACT Pieter R. Gurdebeke [email protected] Department of Geology, Ghent University, Krijgslaan 281, S8, 9000 Ghent, Belgium.AbstractA 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.

Source: Palynology

DOI: 10.1080/01916122.2020.1750500

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