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)
Author
Margerel, Jean-Pierre
text
Geodiversitas
2023
2023-02-09
45
1
1
53
journal article
53760
10.5252/geodiversitas2023v45a1
08c00c56-bb28-483f-b7c3-629d719e2187
1638-9395
7693425
urn:lsid:zoobank.org:pub:30880BD5-05CA-402B-A0CF-F922059A2B70
Lagunculella redonensis
n. gen., n. sp.
(
Figs 22
D-J; 33E, F)
urn:lsid:zoobank.org:act:
62AD443B-DAA2-4F8F-B7A8-419B1344290E
HOLOTYPE
. — Sample: la Groussinière S6,
16.40-16.90 m
(MNHN.F.F67699).
PARATYPE
. — Sample: la Groussinière S6,
16.40-16.90 m
(MNHN.F.F67700).
DIAGNOSIS. — Test globular, aboral end ornamented with acute costae, aperture with deversed lip.
TYPE AGE. — Early Upper Pliocene.
TYPE LOCALITY. — La Groussinière (Ille-et-Vilaine).
ETYMOLOGY. — From Latin
Condātĕ
redonum
(Rennes).
MATERIAL EXAMINED. — Sample: la Groussinière S17, 21.70-
19.20 m
(
MNHN
.F.F67762),
9 specimens
; sample: la Groussinière S6,
16.40-16.90 m
(
MNHN
.F.F67763),
6 specimens
.
SIZE. — Length =
0.360 mm
; diameter =
0.180 mm
.
OCCURENCE. — Sandy marls from la Groussinière (Ille-et-Vilaine).
DESCRIPTION
Test globular tapering to a more or less elongated neck, aboral end ornamented with acute costae (10, 11); wall smooth, hyaline, finely perforate; aperture rounded provided with deversed lip; aboral end structure.