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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
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.
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Globigerina aptica compiled by the pforams@mikrotax project team viewed: 22-4-2021
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