Malumella suboblonga, 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 : 40

Malumella suboblonga n. gen., n. sp. ( Figs 25 N-P; 26A-F)

urn:lsid:zoobank.org:act:E452B601-878B-4B1F-887B-87984379BFE7

HOLOTYPE. — Sample: la Bouillonnaie, 12.50 m (MNHN.F.F67714).

PARATYPE. — Sample: la Bouillonnaie, 6.00 m (MNHN.F.F67715).

DIAGNOSIS. — Test ovoid ornamented with costae, base granulate; reticulate conical neck.

TYPE AGE. — Early Pliocene.

TYPE LOCALITY. — La Bouillonnaie (Maine-et-Loire).

ETYMOLOGY. — From Latin sub (minor) and oblongus (oblong).

MATERIAL EXAMINED. — Sample: la Bouillonnaie, 12.50 m ( MNHN.F.F67767), 3 specimens.

SIZE. — Length = 0. 593 mm; diameter = 0. 269 mm.

OCCURENCE. — Marls from la Bouillonnaie (Maine-et-Loire).

DESCRIPTION

Test ovoid ornamented with fine costae (12), base little granular; neck conical surrounded with chamberlets closed with perforate wall and hexagonal ornamentation; wall hyaline, densely perforate; aperture rounded with small radiate lip; aboral opening.

Figures

FIG. 25. — A-M, Malumella oblonga n. gen., n. sp.: A-D, holotype, Mernel (MNHN.F.F67711); A, lateral view; B, perforated wall; C, D, oral and basal views; E-I, paratype, Auxais (MNHN.F.F67712); E, lateral view; F, perforated wall; G, H, oral and basal views; I, enlargement basal views; N-P, Malumella suboblonga n. gen., n. sp., la Bouillonnaie, holotype (MNHN.F.F67714): N, lateral view; O, perforated wall; P, perforated wall on the neck. Scale bars: A, E, J, L, N, 200 µm; B, F, K, M, O, 50 µm; C, D, G, H, 100 µm; I, 20 µm; P, 10 µm.