Deuteralagena sp. G

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 : 6

Deuteralagena sp. G

( Fig. 4 N-P)

LOCALITY. — La Groussinière (Ille-et-Vilaine).

MATERIAL EXAMINED. — Sample: la Groussinière S6, 17.60-20.30 m ( MNHN.F.F67619).

AGE. — Late Pliocene.

DESCRIPTION

Test ovoid inflated, aboral end with acute costae extending along the test, conical neck with ridges; wall hyaline, smooth, finely perforate; aperture rounded with small striated lip; small aboral opening.

Figures

FIG. 4. — A, B, Deuteralagena sp. C, Fécamp (MNHN.F.F67615), lateral and basal views; C-F, Deuteralagena sp. D, Auxais (MNHN.F.F67616): C, lateral view; D, pores; E, F, oral and basal views; G-J, Deuteralagena sp. E, la Pugle (MNHN.F.F67617): G, lateral view; H, pores; I, J, oral and basal views; K-M, Deuteralagena sp. F, SGB3 (MNHN.F.F67618) in lateral, oral and basal views; N-P, Deuteralagena sp. G, la Groussinière (MNHN.F.F67619) in lateral, oral and basal views. Scale bars: A, B, E, F, G, I, J, K, L, M, O, P, 100 µm; C, N, 200 µm; D, 5 µm; H, 50 µm.