Organic-walled microfossils from the lower Cambrian of North Greenland: a reappraisal of diversity ...

• Main Authors: Wallet, Elise, Slater, Ben J., Willman, Sebastian
• Format: Dataset
• Language: unknown
• Published: Taylor & Francis 2023
• Subjects: Evolutionary Biology; FOS Biological sciences; Environmental Sciences not elsewhere classified; Ecology; Astronomical and Space Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Greenland; Pura; Vidal; North Greenland
• Online Access: https://dx.doi.org/10.6084/m9.figshare.24025589.v2; https://tandf.figshare.com/articles/dataset/Organic-walled_microfossils_from_the_Lower_Cambrian_of_North_Greenland_a_reappraisal_of_diversity/24025589/2

The early Cambrian Buen Formation (North Greenland) hosts an exceptionally rich fossil biota that has contributed significantly to our knowledge of early metazoans, yet the fossil remains of primary producers from this deposit have received less attention. Here we examine the palynological component of the Buen Formation, with a focus on acritarchs and filamentous microfossils. Our analysis revealed the presence of 49 form taxa, 15 of which are described for the first time in the Buen Formation. These include large elements of presumably benthic origin, together with cyst-like acritarchs. Comasphaeridium longispinosum Vidal 1993 is renamed Comasphaeridium ? brillesensis nom. nov., and Comasphaeridium densispinosum Vidal 1993 is reassigned to a new genus, Pearisphaeridium , becoming Pearisphaeridium densispinosum comb. nov. The diagnoses of Pearisphaeridium densispinosum (Vidal 1993) comb. nov. and Skiagia pura Moczydłowska 1988 are emended. Further, careful analysis of disparity in the recovered assemblage ...