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Protelphidium niveum (Lafrenz, 1963) and the taxonomy of "lower" elphidiids

Ivan Voltski, Sergei Korsun, Loic Pillet and Jan Pawlowski
Protelphidium niveum (Lafrenz, 1963) and the taxonomy of "lower" elphidiids
Journal of Foraminiferal Research (July 2015) 45 (3): 250-263

Abstract

A small planispiral rotaliid, Nonion? niveum, was described by Lafrenz from the Eemian (upper Pleistocene) of the Baltic Sea. Since then, the species has several times been attributed to other genera (Haynesina, Protelphidium), resulting in taxonomic confusion. Recently, a morphologically identical foraminifer has been found in the White Sea, which is the first documented occurrence of the species from this area. In-depth investigation of its test morphology revealed that the species has features common to modern Haynesina representatives and particularly to the extinct Paleogene species Protelphidium hofkeri. This was especially evident in the architecture of the umbilical area. With the help of a comparative morphological study of several other elphidiids, the species in question was attributed to the genus Protelphidium, as its only living member and with the necessary emendation of the diagnosis. We believe that the redescription of Protelphidium niveum helps to clarify the taxonomy of the basal "lower" elphidiids by coupling the revision of morphological features with molecular data.


ISSN: 0096-1191
EISSN: 1943-264X
Coden: JFARAH
Serial Title: Journal of Foraminiferal Research
Serial Volume: 45
Serial Issue: 3
Title: Protelphidium niveum (Lafrenz, 1963) and the taxonomy of "lower" elphidiids
Affiliation: University of Geneva, Department of Genetics and Evolution, Geneva, Switzerland
Pages: 250-263
Published: 201507
Text Language: English
Publisher: Cushman Foundation for Foraminiferal Research, Ithaca, NY, United States
References: 75
Accession Number: 2016-005182
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendix
Illustration Description: illus. incl. 2 tables, sketch map
N66°15'00" - N66°20'60", E33°45'00" - E33°55'00"
Secondary Affiliation: Saint Petersburg State University, RUS, Russian Federation
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Cushman Foundation for Foraminiferal Research. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201603
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