Catalog - Globigerina aptica

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina aptica Agalarova, in Dzhafarov et al. 1951

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 -> G -> Globigerina -> Globigerina aptica

Other pages this level: << < G. almadenensis, G. alpigena, G. altispira, G. ampliapertura, G. ampliapertura cancellata, G. anconitana, G. angipora, G. angiporoides, G. angiporoides minima, G. angulata, G. anguliofficinalis, G. antarctica, G. antillensis, G. apertura, G. applanata, G. aptica, G. aquiensis, G. arabica, G. archaeobulloides, G. ariakensis, G. aspensis, G. aspera, G. asperula, G. atlantica, G. atlantis, G. atlantisae, G. aumalensis, G. ayalai, G. azerbaidjanica, G. baconica, G. bacuana> >>

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Globigerina aptica

Citation: Globigerina aptica Agalarova, in Dzhafarov et al. 1951

Rank: Species

Described on page(s) : 49

Type specimens: N/A

Type age (chronostrat): Aptian

Type locality: Near the town of Nardaran, eastern Azerbaidzhan.

Type repository: Not given

Current identification/main database link: Hedbergella infracretacea (Glaessner, 1937)

Original Description

Test trochospiral, dorsal side quite convex. Peripheral margin undulately curved. Spire consists of 2 whorls, the last of which contains 5-6 spheroidal chambers. Proloculus, the smallest chamber, stands out clearly on the dorsal side. Chambers very strongly increase in size as added. Umbilical depression attains a considerable size. Sutures simple, strongly depressed. Aperture a semicircular slit, opens into the umbilicus. Wall calcareous.

Size:

0.12 - 0.25 mm

Etymology:

Extra details from original publication

Наши формы очень близки к Globigerina bulloides d’Orb., но отличаются от них меньшей величиной, выпуклостью со спин ной стороны и неравномерным ростом камеры.

Editors' Notes

References:

Agalarova, D. A. (1951). Studies of microfauna from Cretaceous deposits of Azerbaydzhan. Aznefteizdat, Baku. 1-128. gs

Dzhafarov, D. I., Agalarova, D. A. & Khalilov, D. M. (1951). Handbook for the microfauna of the Cretaceous deposits of Azerbaidshan. USSR: Aznefteizdat., Baku. 1-128. gs V O