Lanternalagena novocrassicarinata n. gen., n. sp. (Figs 23 I-P; 24A-C; 33I, J)

urn:lsid:zoobank.org:act: 59DC43BD-3403-4950-AC6A-DB695E0BD1AE

HOLOTYPE. — Sample: la Sautré, 5.00 m (MNHN.F.F67705).

PARATYPES. —Two paratypes:Sample:Fécamp 2A (MNHN.F.F67706); sample: la Groussinière S6, 16.40-16.90 m (MNHN.F.F67707).

DIAGNOSIS. — Test ovoid ornamented with large costae, conical reticulate neck, aboral opening.

TYPE AGE. — Early Pliocene.

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

ETYMOLOGY. — From Latin novus (new), crassus (thick) and cărĪna (hull shape).

OTHER MATERIAL EXAMINED. — Sample: la Sautré S6, 16.40-16.90 m (MNHN.F.F67765), 6 specimens.

SIZE. — Length = 0.460 mm; diameter = 0.259 mm.

OCCURENCE. — Marls from la Sautré (Maine-et-Loire), sandy marls from la Groussinière and crags (faluns) from Fécamp (Seine-Maritime).

DESCRIPTION

Test ovoid ornamented with large longitudinal costae (10); neck conical surrounded with chamberlets closed with punctate wall and polygonal ornamentation; wall hyaline, perforate; aperture rounded with striated rim; aboral end structure.