Catalog - Globorotalia miozea acumarginata

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia miozea subsp. acumarginata Fordham 1986

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 -> Globorotalia -> Globorotalia miozea acumarginata
Other pages this level: << < G. menardii antarctica, G. menardii fijiensis, G. menardii gibberula, G. menardii jamesbayensis, G. menardii miocenica, G. menardii miotumida, G. menardii multicamerata, G. menardii neoflexuosa, G. menardii panda, G. mineacea, G. minuta, G. minutissima, G. miocenica mediterranea, G. miotumida explicationis, G. miozea, G. miozea acumarginata, G. miozea conoidea, G. miozea rifensis, G. miozea sphericomiozea, G. miroensis, G. mohleri, G. monmouthensis, G. multiloculata, G. munda, G. nagappai, G. nana pseudocontinuosa, G. nartanensis, G. naussi, G. neominutissima, G. nicobarica, G. nicolae> >>

Globorotalia miozea acumarginata

Citation: Globorotalia miozea subsp. acumarginata Fordham 1986
Rank: sub-species
Type specimens: UQF 72424.
Type age (chronostrat): O. suturalis zone; lower- middle Miocene.
Type locality: DSDP 20B-21-3 73-75 cm.
Type repository: Brisbane, Australia; U Queensland Univ.

Current identification:

Original Description

Moderate in size, fairly robust; low dextral trochospire, very tight. Equatorial outline circular, weakly lobate; lateral outline biconvex, slightly higher umbilically. Chambers angular-rhomboid, strongly appressed, about 14 in total, 5 in final whorl; increase moderate. Dorsal view: chambers longer concentrically, flat; sutures flush, nonlimbate or very weakly limbate; intercameral sutures directed and smoothly curved posteriorly. Ventral view: chambers weakly inflated; intercameral sutures radial tending to curve posteriorly at distal end, moderately depressed, meeting at tight umbilicus; aperture umbilical--extraumbilical, interiomarginal, very low, slit-like, with thick lip. Lateral view: dorsoperipheral shoulder sharply angular; ventral face and umbilical shoulder gently and smoothly rounded; terminal face and apertural face weakly concave. Wall smooth with dense small pores.

Length, 325 µm; width, 280 µm; height, 140 µm.

Latin, acuo, make pointed, sharpen; margo, -inis, border, edge; -atus, pertaining to.

Extra details from original publication
Description based on: Common material.
Holotype fig.: Fordham 1986 Pl. 21, fig. B.

Editors' Notes


Fordham, B. G. (1986). Miocene-Pleistocene planktic foraminifers from D.S.D.P. Sites 208 and 77, and phylogeny and classification of Cenozoic species. Queensland, Australia. 1-224. gs


Globorotalia miozea acumarginata compiled by the pforams@mikrotax project team viewed: 4-12-2022

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