Lagena striata (d’Orbigny, 1839)

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 : 24

Lagena striata (d’Orbigny, 1839)

( Figs 15 O-P; 16A-L; 31P; 32A)

Oolina striata d’Orbigny, 1839: 21 , pl. 5, fig. 12.

Lagena striata –Heron-Allen & Earland 1932: 366, pl. X, figs 10-12.

LOCALITY. — SGB3 (Manche).

MATERIAL EXAMINED. — Sample: SGB3, 9.50 m ( MNHN.F.F67668- F67671); sample: SGB3, 9.50 m ( MNHN.F.F67753), 48 specimens.

AGE. — Late Pliocene.

DESCRIPTION

Test globular to ovoid ornamented with longitudinal fine costae alternating with shorter (40), a few extend onto the neck; wall hyaline, finely perforate; aperture rounded; aboral end structure.

Figures

FIG. 15. — A-N, Lagena ornaticollis Jones, 1984, n. stat.: A, St. Erth (MNHN.F.F67664), basal view; B-D, Mernel, lateral, oral and basal views; E-H, Mernel (MNHN.F.F67665): E, lateral view, F, perforated wall; G, H, oral and basal views; I-K, Fécamp (MNHN.F.F67666) in lateral, oral and basal views; L-N, SNP (MNHN.F.F67667) in lateral, oral and basal views; O, P, Lagena striata (d’Orbigny, 1839), SGB3 (MNHN.F.F67668), lateral and oral views. Scale bars: A, C, D, G, H, J, K, M-P, 100 µm; B, E, I, L, 200 µm; F, 10 µm.