Lectotype designation for Alveolina boscii and Fabularia discolites (Foraminifera) from the rediscovered part of the Defrance collection

Jérôme Tréguier (1) , François Le Coze (2) , Roch-Alexandre Benoit (3)

1 Musée des Sciences de Laval
2 World Foraminifera Database
3 GR - Géosciences Rennes

Five lots of Foraminifera, belonging to the Marin Defrance (1758–1850) collection, were discovered in the collection of the Musée des Sciences in Laval (Mayenne, France). The original material used by Defrance to describe Alveolina boscii (Defrance in Bronn, 1825) and Fabularia discolites Defrance in Bronn, 1825 was identified among them, allowing the designation of a lectotype and paralectotypes for those two species. The systematic description of A. boscii and F. discolites is reviewed. The presence of these specimens in the museum collections is still puzzling, since the complete Defrance's collection was thought to have been lost during World War II.

Mots clés: Foraminifera Eocene Defrance's collection Systematic revision Musée des Sciences in Laval

Domaines: Paléontologie

Jérôme Tréguier, François Le Coze, Roch-Alexandre Benoit. Lectotype designation for Alveolina boscii and Fabularia discolites (Foraminifera) from the rediscovered part of the Defrance collection. Revue de Micropaléontologie, 2019, 63, pp.37-43. ⟨10.1016/j.revmic.2019.03.001⟩. ⟨insu-02159252⟩