Deuteralagena elegans, Margerel, 2023

Margerel, Jean-Pierre, 2023, The species of Lageninae Brady, 1881 (Foraminifera) from the Pliocene-Early Pleistocene of north-western France, Fécamp (Seine-Maritime, France) and St Erth (Cornwall, United Kingdom), Geodiversitas 45 (1), pp. 1-53 : 4

Deuteralagena elegans n. gen., n. sp. ( Figs 2 A-G; 29M, N)

urn:lsid:zoobank.org:act:29D8DF97-0900-43EC-AE8F-42328125DD5C

HOLOTYPE. — Sample: Auxais Sample: T47, 12-14 m (MNHN.F.F67607).

PARATYPE. — Sample: Auxais T47, 12-14 m (MNHN.F.F67608).

DIAGNOSIS. — Test ovoid, neck distinct with lip and with costae at aboral end.

TYPE AGE. — Early Pleistocene.

TYPE LOCALITY. — Auxais (Manche).

ETYMOLOGY. — From Latin ēlĕgans (elegant).

OTHER MATERIAL EXAMINED. — Sample: Auxais T 47, 12-14 m ( MNHN.F.F67730), 2 specimens.

SIZE. — Length = 0.510 mm; diameter = 0.200 mm

OCCURENCE. — Marls from Auxais (Manche).

DESCRIPTION

Test ovoid ornamented with costae (10) at aboral end; neck distinct slightly conical; wall hyaline, smooth, finely perforate; aperture rounded with a small striated lip; aboral end structure.

Figures

FIG. 2. —A-G, Deuteralagena elegans n.gen.,n. sp.,Auxais:A-C, holotype in lateral,oral and basal views (MNHN.F.F67607);D-G, paratype,Auxais (MNHN.F.F67608); D, lateral view;E, pores;F, G, oral and basal views;H-P, Deuteralagena laguncula n. gen.,n. sp.:H-L, holotype,Auxais (MNHN.F.F67609);H, lateral view,I, pores; J, K, oral views; L, basal view; M-O, paratype, Auxais (MNHN.F.F67610) in lateral, oral and basal views; P, paratype, Auxais (MNHN.F.F67611), in lateral view. Scale bars: A, D, H, M, P, 200 µm; B, C, F, G, I, J, L, N, O, 100 µm; I, K, 20 µm; E, 10 µm.