Givetian ostracods of the Candás Formation (Asturias, North-western Spain): taxonomy, stratigraphy, palaeoecology, relationship to global events and palaeogeographical implications
Author
Maillet, Sebastien
Author
Milhau, Bruno
Author
Vreulx, Michel
Author
Posada, Luis-Carlos Sánchez De
text
Zootaxa
2016
4068
1
1
78
journal article
10.11646/zootaxa.4068.1.1
b9c1e3a3-e591-4b34-9f30-d6d88a230673
1175-5326
270644
80E89736-33F2-4FF5-9B01-8B7239407875
Bairdiocypris
sp. indet.
2013
Bairdiocypris
sp. indet.; Maillet: 152, pl. XXIII, fig. 6.
Material.
3 specimens
(2 C,
1 V
).
Description.
Large elongated carapace, cytherelloid outline in lateral view, biconvex in dorsal view. Distinct overlap of the larger LV over the RV along whole outline. Hmax at about 1/3 anterior; Lmax slightly ventral; Wmax slightly antero-ventral. Dorsal margin regularly convex. Ventral margin very slightly concave. Anterior and posterior margins well rounded. Anterior part of the carapace higher and wider than the posterior one. Surface smooth.
Discussion.
An unidentified
Bairdiocypris
species with an elongated carapace, slender posteriorly.
Occurrences.
Lower to Upper Givetian (Hanonet, Trois-Fontaines and Mont d’Haurs Fms, and Fromelennes Fm, Fort Hulobiet Member), Ardenne (Flohimont, Mont d’Haurs and Cul d’Houille sections), Middle Givetian (Candás Fm, mb C), Asturias (Peran-Perlora section).