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Linking biological and geological data on dinoflagellates using the genus Spiniferites as an example; the implications of species concepts, taxonomy and dual nomenclature

Marianne Ellegaard, Martin J. Head and Gerard J. M. Versteegh
Linking biological and geological data on dinoflagellates using the genus Spiniferites as an example; the implications of species concepts, taxonomy and dual nomenclature (in Spiniferites Mantell 1850, Kenneth Neil Mertens (editor) and Consuelo Carbonell-Moore (editor))
Palynology (December 2018) 42 (S1): 221-230

Abstract

Dinoflagellates encompass two taxonomic systems (dual taxonomy) reflected by separate traditions of nomenclature: one based mainly on living motile stages, and the other mainly on fossil cysts (dual nomenclature). Modern cysts may therefore bear two names if their life cycle is known. There have been attempts to rationalize this duality, but at species and genus level this has been largely unfruitful. New and continuing developments call for a renewed evaluation of this duality: (1) the elucidation of multiple new cyst-motile stage relationships creating overlaps between cyst-based and motile-based systems, and (2) the advent of DNA sequence-based phylogenies, revealing evolutionary patterns (underlying the phenotypic differences) that disagree with trees obtained from the study of fossil cysts. We examine the background of dual nomenclature and discuss the implications of new advances in molecular phylogeny for dual taxonomy as well as briefly review earlier attempts to unite cyst/fossil and motile-/living-based nomenclatures. From this basis, we explore routes for bringing the separate taxonomic systems closer together. Our rationale for doing this lies in the challenges facing communication between the biologists and geologists who work on these different life cycle stages. These challenges encompass taxonomic issues, nomenclature, evolutionary interpretations, and the nature of what we perceive as a species. We use the motile/cyst pair Gonyaulax/Spiniferites as our example, as these, and related genera, provide a useful model for illustrating the difficulties in bridging the gap between biology and palaeontology because they are numerous, with regard to both species and specimens, and are ubiquitous in both time and space.


ISSN: 0191-6122
EISSN: 1558-9188
Serial Title: Palynology
Serial Volume: 42
Serial Issue: S1
Title: Linking biological and geological data on dinoflagellates using the genus Spiniferites as an example; the implications of species concepts, taxonomy and dual nomenclature
Title: Spiniferites Mantell 1850
Author(s): Ellegaard, MarianneHead, Martin J.Versteegh, Gerard J. M.
Author(s): Mertens, Kenneth Neileditor
Author(s): Carbonell-Moore, Consueloeditor
Affiliation: University of Copenhagen, Department of Plant and Environmental Sciences, Copenhagen, Denmark
Affiliation: Institut Francais de Recherche pour l'Exploitation de la Mer, Station de Biologie Marine, Concarneau, France
Pages: 221-230
Published: 20181220
Text Language: English
Publisher: American Association of Stratigraphic Palynologists, Dallas, TX, United States
References: 38
Accession Number: 2019-007327
Categories: Paleobotany
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: Brock University, CAN, CanadaAlfred-Wegener Institut, Helmholz-Zentrum fuer Polar- und Meeresforschung, DEU, Germany
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Abstract, Copyright, American Association of Stratigraphic Palynologists. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201906
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