CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia platispira de Klasz, Le Calvez, & Rerat 1969
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.
Citation: Globorotalia platispira de Klasz, Le Calvez, & Rerat 1969taxonomic rank: speciesDescribed on page(s) : 272Type specimens: pl. I, fig. 3a-c,Type age (chronostrat): Lower Miocene, M'Bega Formation.Type locality: Depth of 561 meters in well MB.102, M'Bega field, about 25 kilometers southeast of Port-Gentil, Gabon. Type repository: Paris; Paleontology Section, Museum d'Histoire Naturelle, Paris, France.
Current identification:
Original Description Une espece du genre Globorotalia avec les particularites suivantes - Test: Biconvexe, un peu moins bombe du cote dorsal que du cote ventral. Peripherie encore arrondie mais avec une tendance a un Ieger pincement, en particulier pour les premieres loges du dernier tour. Face dorsale: Une tour et quart de spire visible. 6 loges au dernier tour, s'accroissant regulierement en taille. Les deux demieres loges ont une peripherie lobee. Sutures deprimees, legerement courbees vers l'arriere. Face ventrale: Involute, pourvue d'un ombilic ferme et deprime. Les loges et les sutures ont le meme aspect que sur la face dorsale. Ouverture: Fente a la base de la derniere loge sur sa face ventrale, s'etendant de Ia peripherie a l'ombilic, et surmontee d'une levre fine. Ornementation: Le test en calcaire grossierement perfore ne comporte pas d'ornementation. Size: Dimensions de l'holotype: - diameter. max. 0.51 mm., epaisseur max. 0.34 mm. Extra details from original publication Relation avec d'autres especes. - Globorotalia platispira de Klasz, Le Calvez, et Rerat presente des affinites avec Globorotalia fohsi fohsi Cushman et Ellisor, 1939, ainsi qu'avec Globorotalia opima opima Bolli 1957. Son epaisseur serait intermediaire entre les deux formes (l'espece de Cushman et Ellisor presentant un bord subaigu, alors que celle de Bolli a une peripherie tres arrondie)."
References:
de Klasz, I., Le Calvez, Y. & Rerat, D. (1969). Nouveaux foraminiferes du bassin sedimentaire du Gabon (Afrique equatoriale). In, Said, R., Beckmann, J. P., Ghorab, M. A., El Ansary, S., Viotti, C. & Kerdany, M. T. (eds) Proceedings of the Third African Micropaleonotligical Colloquium, Cairo March 1968. National Information and Documentation Centre, Cairo 269-286. gs
Globorotalia platispira compiled by the pforams@mikrotax project teamviewed: 21-9-2024
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