Catalog - Globorotalia dehiscens Catalog - Globorotalia dehiscens

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia dehiscens Chapman, Parr & Collins, 1934

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 dehiscens
Other pages this level: << < G. crassacarina, G. crassaconica, G. crassacrotonensis, G. crassaformis ronda, G. crassata aequa, G. crassula, G. crater, G. crimensis, G. crosswicksensis, G. crotonensis, G. crozetensis, G. crystalriverensis, G. cushmani, G. dalii, G. decorata, G. dehiscens, G. delrioensis, G. denseconnexa, G. dolabrata, G. dominicana, G. edgari, G. ehrenbergi, G. emilei, G. extans, G. faragi, G. flabelliformis, G. fohsi, G. fohsi andina, G. fohsi robusta, G. formosa formosa, G. formosa gracilis> >>

Globorotalia dehiscens

Citation: Globorotalia dehiscens Chapman, Parr & Collins, 1934
Taxonomic rank: species
Type age (chronostrat): Oligocene (Balcombian)
Type locality: Karkeraboite Creek, Victoria, Australia
Type repository: (Chapman Coll.)

Current identification/main database link: Globoquadrina dehiscens (Chapman, Parr & Collins, 1934)


Original Description

Test subconical, about as broad as high, the dorsal side flattened or slightly convex, the ventral side strongly convex and deeply umbilicate, margin rounded, composed of several whorls with four chambers in the last-formed one, chambers increasing quickly in size and height as added, well inflated, and separated along their inner margins by deep fissures; sutures radial, depressed; surface reticulate or slightly papillate, the apertural face being finely punctate; aperture an elongate slit extending almost the full length of the inner margin of the last-formed chamber and opening into the umbilical cavity.

Size:
0.55mm

Extra details from original publication
Observations.-This species is distinct from any previously descrihed form, and not likely to be mistaken for any other. As with many other species found in the Tertiary of Victoria, it is confined to the Oligocene and Miocene.

References:

Chapman, F., Parr, W. J. & Collins, A. C. (1934). Tertiary foraminifera of Victoria, Australia - The Balcombian deposits of Port Phillip. part III. Zoological Journal of the Linnean Society. 38(262): 553-577. gs

Wade, B. S., Pearson, P. N., Olsson, R. K., Fraass, A. J., Leckie, R. M. & Hemleben, C. (2018c). Taxonomy, biostratigraphy, and phylogeny of Oligocene and Lower Miocene Dentoglobigerina and Globoquadrina. In, Wade, B. S., Olsson, R. K., Pearson, P. N., Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 46(Chap 11): 331-384. gs


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Globorotalia dehiscens compiled by the pforams@mikrotax project team viewed: 18-2-2025

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