Lagunculella grayi, 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 : 30

Lagunculella grayi n. gen., n. sp.

( Figs 19 N-P; 20A-D; 32H, I)

urn:lsid:zoobank.org:act:8A21EDD5-C14F-41F4-A1FB-C3854710B44E

HOLOTYPE. — Sample: LRK2, 2.30 m (MNHN.F.F67688).

PARATYPE. — Sample: SSL S3, 2.30 m (MNHN.F.F67689).

DIAGNOSIS. — Test ovoid truncated at the base ornamented with costae and tapering to a short neck, aperture provided with a deversed lip, aboral opening.

TYPE AGE. — Late Pliocene.

TYPE LOCALITY. — Brest-LRK2 (Finistère).

ETYMOLOGY. — In honour of Howard Burk Gray.

OTHER MATERIAL EXAMINED. — Sample: LRK2, 3.30 m ( MNHN.F.F67758), 2 specimens.

SIZE. — Length = 0.345 mm; diameter = 0.158 mm.

OCCURENCE. — Clay from Brest-LRK2 and falun from SaintSulpice-des-Landes (Loire-Atlantique).

DESCRIPTION

Test ovoid tapering to a short neck with spirally ridges, aboral end ornamented with acute costae (11); wall smooth, hyaline, finely perforate; aperture rounded with deversed lip; aboral end structure.

Figures

FIG. 19. — A-D, Lagena sp.A,Auxais (MNHN.F.F67684):A, lateral view;B, perforated wall;C, D, oral and basal views;E-G, Lagena sp.B,Fécamp (MNHN.F.F67685), lateral, oral and basal views; H-M, Lagena sp. C: H-J, la Sautré (MNHN.F.F67686) in lateral, oral and basal views; K-M, Mernel (MNHN.F.F67687) in lateral, oral and basal views; N-P, Lagunculella grayi n. gen., n. sp., Brest-LRK2, holotype (MNHN.F.F67688): N, lateral view; O, perforated wall; P, oral view. Scale bars: A, E, H, 200 µm; B, 5 µm; C, D, F, G, I-N, 100 µm; P, 50 µm; O, 20 µm.