Laevilagena guttaformis n. gen., n. sp. (Figs 10 B-I; 30O; 31A)

urn:lsid:zoobank.org:act: C8C6C524-46A0-4247-B785-7353CC6D294C

HOLOTYPE. — Sample: la Groussinière S6, 13.60-14.50 m (MNHN.F.F67641).

PARATYPE. — Sample: Mernel (MNHN.F.F67642).

DIAGNOSIS. — Test pear shape in outline, partly ornamented with costae; wall hyaline, punctate; aperture rounded with lip; aboral opening.

TYPE AGE. — Late Pliocene.

TYPE LOCALITY. — La Groussinière (Ille-et-Vilaine).

ETYMOLOGY. — From Latin Gutta (drop) and forma (form).

OTHER MATERIAL EXAMINED. — Sample: la Groussinière S15, 47.0- 44.50 m (MNHN.F.F67741), 7 specimens.

SIZE. — Length = 0.663 mm; diameter = 0.188 mm.

OCCURENCE. — Sandy clay from la Groussinière (Ille-et-Vilaine) and crags from Mernel (Ille-et-Vilaine).

DESCRIPTION

Test pear shape in outline, drop-like, base slightly rounded, partly ornamented with longitudinal costae (10);wall hyaline,perforate; aperture rounded with small striated lip; aboral end structure.