Catalog - Ventilabrella reniformis <title>Catalog - Ventilabrella reniformis

CATALOG OF ORIGINAL DESCRIPTIONS: Ventilabrella reniformis Marie 1941

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> V -> Ventilabrella -> Ventilabrella reniformis
Other pages this level: V. alpina, V. austinana, V. bipartita, V. browni, V. carseyae, V. compressa, V. decoratissima, V. eggeri, V. eggeri glabrata, V. manuelensis, V. multicamerata, V. ornatissima, V. reniformis, V. riograndensis

Ventilabrella reniformis

Citation: Ventilabrella reniformis Marie 1941
Rank: Species
Type specimens: Pl. XXVIII, fig.227 a-c. HOLOTYPE : Coll. pers. n° 6194 (Montereau).
Type sample (& lithostrat): marly chalk,
Type age (chronostrat): Late Campanian, Belemnitella mucronata Zone
Type locality: within the drill cuttings of a hole provided by the Service des Ponts et Chausses, at Montereau, Seine-et-Marne, Paris Basin. Extremely rare; only one known individual.
Type repository: Paris; Museum d'Histoire Naturelle de Paris

Current identification/main database link: Laeviheterohelix reniformis (Marie, 1941)


Original Description

Test à partie initiale réduite et effilée, composée de loges nettement croissantes, suivies dans l'adulte de loges croissantes, presque globuleuses et assez régulières à la périphérie des flancs, nettement allongées et reniformes à leur intérieur. Surface très finement striée longitudinalement.

Translation: Test showing a reduced and fringed initial part, with chambers increasing sharply in size as added; mature chambers enlarging as added, almost globular and fairly regular at the periphery of the sides, sharply elongated and reniform in their internal part. Surface finely striated longitudinally.

Size:
Individu très petit constitué par six rangées de loges, hauteur :0,200 mm. — Largeur :0,230 mm. — Épaisseur :0,100 mm.
Very small individuals, formed of six rows of chambers, height: 0.200 mm, width: 0.230 mm, thickness: 0.100 mm.

Etymology:

Extra details from original publication
RÉPARTITION : Extrêmement rare, zone II, un seul individu dans la craie marneuse du sondage de Montereau.
RAPPORTS ET DIFFÉRENCES : Ce petit spécimen microsphérique, très particulier par ses loges latérales globuleuses et ses loges internes reniformes, ne peut être rattaché à aucune autre espèce de ce genre.

Editors' Notes

References:

Marie, P. (1941). Les foraminiferes de la craie a Belemnitella mucronata du Bassin de Paris. Mémoires du Muséum National d'Histoire naturelle. 12: 1-296. gs V O


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Ventilabrella reniformis compiled by the pforams@mikrotax project team viewed: 27-1-2023

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