Lagena mariae Karrer, 1877

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 mariae Karrer, 1877

( Figs 14 I-K; 31L, M)

Lagena mariae Karrer, 1877: 378 , pl. 16b, fig. 16.

LOCALITIES. — La Sautré and la Pugle (Maine-et-Loire).

MATERIAL EXAMINED. — Sample: la Sautré, 15.00 m ( MNHN.F.F67662); sample: la Pugle, 9.00 m ( MNHN.F.F67751), 2 specimens.

AGE. — Early Pliocene.

DESCRIPTION

Test ovoid with dense reticulate ornamentation extending onto the neck; wall punctate; aboral end structure.

Lagena ornaticollis Jones, 1984 , n. stat. ( Figs 14 L-O; 15A-N; 31N, O)

Lagena substriata subsp. ornaticollis Jones, 1984: 133 , pl. 7, fig. 17.

LOCALITIES. — St Erth (Cornwall), Mernel (Loire-Atlantique), la Groussinière (Ille-et-Vilaine), Fécamp (Seine-Maritime), SNP (Manche).

MATERIAL EXAMINED. — Sample: St Erth, 5.20-5.30 m ( MNHN.F.F67663, F67664); sample: Mernel S212, 5.50 m ( MNHN.F.F67665); sample: Fécamp 2A, ( MNHN.F.F67666); sample: SNP-F4, 30.70-32.00 m ( MNHN.F.F67667); sample: la Groussinière S17, 22.50- 21.70 m ( MNHN.F.F67752), 15 specimens.

AGE. — Early Pliocene to Late Pliocene.

DESCRIPTION

Test ovoid, ornamented with longitudinal costae (35) alternating with shorter sometimes connected and extending onto the neck with reticular shape; neck distinct consisting of an overlay of hexagonal-based chamberlets externally closed with reticulate punctate wall; wall hyaline, punctate; aperture rounded.

Figures

FIG. 14. — A-H, Lagena haidingeri (Cžjžek, 1848): A, B, l’Épinay (MNHN.F.F67659); oral and basal views; C-E, St. Erth (MNHN.F.F67660), lateral, oral and basal views;F-H, la Pugle (MNHN.F.F67661),lateral,oral and basal views of a specimen with broken neck;H-K, Lagena mariae Karrer,1877,la Sautré (MNHN.F.F67662) in lateral, oral and basal views; L-O, Lagena ornaticollis Jones, 1984, n. stat., St. Erth (MNHN.F.F67663): L, lateral view; M, perforated wall; N, perforated wall of the neck. Scale bars: A, B, D, E, G, J, K, O, 100 µm; C, F, I, L, 200 µm; H, 50 µm; M, 5 µm; N, 10 µm.