Fususella basirotunda n. gen., n. sp. (Figs 5 D-P; 30C-F)

urn:lsid:zoobank.org:act: 716CEB84-5DC9-43A7-804C-0CBBBC4F8C0D

HOLOTYPE. — Sample: la Pugle, 8.00 m (MNHN.F.F67621).

PARATYPES. — Two paratypes: Sample: la Groussinière S6, 17.60- 20.30 m (MNHN.F.F67622, F67623).

DIAGNOSIS. — Test fusiform, hyaline, oral end with ribs, aboral end rounded with opening.

TYPE AGE. — Early Pliocene.

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

ETYMOLOGY. — From Latin bặsis (base) and rŏtundus (round).

MATERIAL EXAMINED. — Sample:la Pugle, 8.00 m (MNHN.F.F67732), 16 specimens); sample:la Bouillonnaie, 12.50 m (MNHN.F.F67733), 2 specimens.

SIZE. — Length: 0.570 mm; diameter = 0.165 mm

OCCURENCE. — Marls from la Pugle and la Bouillonnaie (Maineet-Loire); sandy marls from la Groussinière (Ille-et-Vilaine).

DESCRIPTION

Test fusiform, oral end covered with ribs, aboral end rounded; wall hyaline, smooth, finely perforate; aperture rounded; aboral end structure.