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Formonsella pyramidosa (Haptophyta, Papposphaeraceae); a new weakly calcified coccolithophore genus from warm-water regions

Helge A. Thomsen, Lluisa Cros, Elisa Malinverno, Jette B. Ostergaard, Mara Y. Cortes, Markus Geisen and Jeremy R. Young
Formonsella pyramidosa (Haptophyta, Papposphaeraceae); a new weakly calcified coccolithophore genus from warm-water regions
Journal of Micropalaeontology (July 2016) 35 (2): 125-132

Abstract

A new species Formonsella pyramidosa gen. et sp. nov. is described to accommodate a widely distributed warm-water coccolithophore species that has previously been referred to as Pappomonas sp. 2. Formonsella differs from Pappomonas with respect to, in particular, the detailed structure of the rim on both calicate and non-calicate coccoliths. In Formonsella the rim comprises two cycles of rod-shaped elements. Although elements in the distal layer are higher at one end, giving this cycle a serrate outline, the overall appearance is very different from the Pappomonas rim which encompasses a distal cycle of pentagonal elements, giving the rim a very distinct toothed appearance. Inverted rectangular pyramidal structures terminate the calicate F. pyramidosa coccoliths. In non-calicate coccoliths the central area calcification comprises differently sized tile-shaped elements, mostly arranged along the longitudinal axis in a rather irregular way.


ISSN: 0262-821X
EISSN: 2041-4978
Serial Title: Journal of Micropalaeontology
Serial Volume: 35
Serial Issue: 2
Title: Formonsella pyramidosa (Haptophyta, Papposphaeraceae); a new weakly calcified coccolithophore genus from warm-water regions
Affiliation: Technical University of Denmark, National Institute of Aquatic Resources, Charlottenlund, Denmark
Pages: 125-132
Published: 201607
Text Language: English
Publisher: British Micropalaeontological Society, London, United Kingdom
References: 34
Accession Number: 2016-070821
Categories: Paleobotany
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N24°31'00" - N24°38'60", W112°07'00" - W110°35'60"
N37°25'00" - N40°34'00", E00°25'00" - E02°38'60"
N08°24'00" - N08°24'00", W97°02'60" - W97°02'60"
S04°00'00" - S04°00'00", W140°00'00" - W140°00'00"
Secondary Affiliation: Institut de Ciencies del Mar, ESP, SpainUniversity of Milano-Bicocca, ITA, ItalyUniversidad Autonoma de Baja California Sur, MEX, MexicoUniversity College London, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201634
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