Catalog - Globigerina crassaformis Catalog - Globigerina crassaformis

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina crassaformis Galloway & Wissler 1927

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 crassaformis
Other pages this level: << < G. compacta, G. compressa, G. compressa caucasica, G. compressaformis, G. concinna, G. concinna altihelix, G. concinna anapetes, G. conglobata, G. conglomerata, G. conglomerata Terquem, G. conglomerata paula, G. conica, G. contorta, G. corpulenta, G. crassa, G. crassaformis, G. cretacea, G. cretacea delrioensis, G. cretacea eggeri, G. cretacea esnehensis, G. cretacea saratogaensis, G. cristata, G. cristatiformis, G. cryophila, G. cyclostoma, G. danica, G. danvillensis, G. daubjergensis, G. decepta, G. depressa, G. depressa d’Orbigny> >>

Globigerina crassaformis

Citation: Globigerina crassaformis Galloway & Wissler 1927
Taxonomic rank: species
Type specimens: Plate 7, fig. 12
Type sample (& lithostrat): from the middle bed at the D. M. S. & B. Quarry; Lower San Pedro Fm.
Type age (chronostrat): Pleistocene
Type locality: Lomita Quarry, Palos Verdes Hills, California
Type repository: Columbia University Paleo. Coll. No. I98I6,

Current identification/main database link: Globorotalia crassaformis (Galloway & Wissler, 1927)


Original Description

Test rotaliform, dorsal side flat, ventral side convexly rounde umbilicate, periphery rounded, lobated; chambers few, usually about four in the last formed coil, inflated, rapidly increasing in size; sutures distinct, curved, deep, not limbate; wall granular or subspinose, very finely perforate; aperture an elogate opening extending from the umbilicus, where it is widest, almost to the peripheral margin and sometimes provided with a narrow lip.

Size:
Diameter of the type specimen, 0.40 mm.; height,

Extra details from original publication
Occurrence.- Rare in the middle bed at the D. M. S. & B. Quarry. Not presen in the Timms Point Pliocene material we have examined. Rare to common in well samples from the Saugus and rare in those from the Upper Pico of the Los Angeles Basin. Numerous authors have figured it from Recent material. This species differs from Rotalina crassa d'Orbigny (Mem. Soc. Geol. France, vol. 4, 1840, p. 32, pl. 3, figs. 7, 8) from the Upper Cretaceous of France, by its more inflated chambers which are fewer to a coil; its deeper sutures; its more angled periphery and by the character of the aperture.

References:

Galloway, J. J. & Wissler, S. G. (1927). Pleistocene foraminifera from the Lomita Quarry, Palos Verdes Hills, California. Journal of Paleontology. 1(1): 35-87. gs

Hornibrook, N. d. B. (1981). Globorotalia in the late Pliocene and early Pleistocene of New Zealand. New Zealand Journal of Geology and Geophysics. 24: 263-292. gs


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Globigerina crassaformis compiled by the pforams@mikrotax project team viewed: 14-2-2025

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