Lagena torquiformis Haynes, 1973

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 : 26

Lagena torquiformis Haynes, 1973 ( Fig. 18 E-G)

Lagena sulcata subsp. torquiformis Haynes, 1973: 93 , pl. 12, fig. 14, pl. 14, figs. 9, 12.

LOCALITY. — SGB3 (Manche).

MATERIAL EXAMINED. — Sample:SGB3, 2.50 m ( MNHN.F.F67679).

AGE. — Late Pliocene.

DESCRIPTION

Test ovoid ornamented with fine longitudinal costae alternating with shorter (43), a few extend in spiral onto the neck; wall hyaline, punctate; aperture rounded; aboral opening.

Figures

FIG. 18. — A-D, Lagena sulcata (Walker & Jacob,1798),SGB3 (MNHN.F.F67678):A, lateral view;B, perforated wall;C, D, oral and basal views;E-G, Lagena torquiformis Haynes, 1973, SGB3 (MNHN.F.F67679) in lateral, oral and basal views; H-P, Lagena variokoreana n. sp., Brest-LRK2: H-K, holotype (MNHN.F.F67680): H, lateral view; I, perforated wall; J, K, oral and basal views; L, specimen with broken neck; M-O, paratype (MNHN.F.F67681), lateral, oral and basal views; P, internal view. Scale bars: A, E, H, L, M, 200 µm; B, 20 µm; C, D, F, G, J, K, N-P, 100 µm; I, 5 µm.