Resolution of the confused classification of some Miocene Nassariidae, and reappraisal of their paleobiodiversity on the French Atlantic seaboard

Type Article
Date 2015-06
Language English
Author(s) Lozouet Pierre1, Galindo Lee Ann2
Affiliation(s) 1 : Museum Natl Hist Nat, F-75005 Paris, France.
2 : Univ Paris 06, Museum Natl Hist Nat, Dept Systemat & Evolut, ISyeb Inst,UMR 7205,CNRS,MNHN,EPHE, F-75231 Paris, France.
Source Archiv Fur Molluskenkunde (1869-0963) (E Schweizerbartsche Verlagsbuchhandlung), 2015-06 , Vol. 144 , N. 1 , P. 31-50
DOI 10.1127/arch.moll/1869-0963/144/031-050
WOS© Times Cited 6
Keyword(s) Mollusca, Nassariidae, Cyllenina, Dorsanum, Taxonomy, Paleogene, Oligocene
Abstract The genus or subgenus Cyllenina previously included in the Cylleninae is diagnosed as a member of the subfamily Dorsaninae. Cyllenina appears related to the Early Miocene species Dorsanum aquensis. A lectotype is designated for Buccinum ancillariaeformis, the type species of Cyllenina. In addition, the Paratethys group Buccinum duplicatum (= Duplicatula) appears closely related to Dorsanum aquensis. It is also shown that the generic names Phos or Nassarius are incorrectly used for Nassa lineolata, an Early Miocene species Dorsanum. On the other hand, the Paleogene clade Keepingia is excluded from the Dorsaninae and treated here as an unassigned group of Nassariidae. An overview of the biodiversity (specific richness) is proposed for the Nassariidae of the French Atlantic coasts showing their rapid diversification during the Late Oligocene. For the Nassariinae, the highest richness is encountered during the Middle Miocene and for the Dorsaninae, during the Later Oligocene. The Cylleninae is represented by only one species, and like the Dorsaninae, it has not been recorded in the Late Miocene.
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