CATALOG OF ORIGINAL DESCRIPTIONS: Globigerinoides conglobatus subsp. altihelix 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 -> Globigerinoides -> Globigerinoides conglobatus altihelix
Other pages this level: G. altiaperturus praealtiaperturus, G. apertasuturalis, G. bannerblowi, G. bispherica, G. bollii, G. bradyi grandis, G. bulloideus, G. cancellata, G. canimarensis, G. conglobatus altihelix, G. consuelensis, G. diminuta, G. dinapolii, G. elongata bikiniensis, G. elongata cedrosensis, G. emeisi, G. eoconglobatus, G. fournieri, G. fragilis, G. glomerosa, G. glomerosa circularis, G. glomerosa curva, G. glomerosa glomerosa, G. haitiensis anterubra, G. haitiensis compactus> >>

Globigerinoides conglobatus altihelix

Citation: Globigerinoides conglobatus subsp. altihelix Fordham 1986
Rank: sub-species
Type locality: DSDP 208-1-4 74-76 cm.
Type age (chronostrat): Globorotalia truncatulinoides zone,; Pleistocene.
Type specimens: UQF 71S59.
Type repository: Brisbane, Australia; U Queensland Univ.

Current identification:


Original Description
Very large, robust; very high sinistral trochospire, loose parallel to axis but very tight perpendicular to axis. Equatorial outline very weakly lobate; lateral outline highly spiroconvex. Chambers ovate parallel to axis, barely appressed, at least 14 in total, 3.75 in final, 3.5 in second-last, in third-last whorls; increase moderate. Dorsal view: chambers much longer concentrically, weakly inflated; sutures deeply but narrowly incised; intercameral sutures radial where present; supplementary apertures on proximal spiral sutures, later ones higher. Ventral view: chambers highly inflated; intercameral sutures radial, meeting at closed umbilicus which is partially covered by final chamber; aperture umbilical, low. Lateral view: smoothly rounded. Wall densely perforate with well-developed interpore ridges.

Size: Length, 735 µm; width 670 µm; height, 755 µm.

Etymology: Latin, altus, high; helix, icis (f.), whorl, spiral.

Extra details from original publication
Description based on: Two specimens.
Holotype fig.: Fordham 1986 Pl. 10, fig. 17.

References:

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


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Globigerinoides conglobatus altihelix compiled by the pforams@mikrotax project team viewed: 14-5-2021

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