Catalog - Globigerina cerroazulensis

CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina cerroazulensis Cole 1928

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 cerroazulensis

Other pages this level: << < G. bulloides bronnresigorum, G. bulloides compacta, G. bulloides cryptomphala, G. bulloides extensa, G. bulloides incrusta, G. bulloides quadripartita, G. bulloides recumbens, G. bulloides rubra pyramidalis, G. bulloides tripartita, G. butti, G. calabra, G. calida, G. calida praecalida, G. canariensis, G. carteri, G. cerroazulensis, G. chascanona, G. ciperoensis, G. ciperoensis angulisuturalis, G. ciperoensis angustiumbilicata, G. ciperoensis ottnangiensis, G. circumnodifer, G. clarae, G. clarkei, G. clippertonensis, G. coalingensis, G. colomi, G. columbae, G. compacta, G. compressa, G. compressa caucasica> >>

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Globigerina cerroazulensis

Citation: Globigerina cerroazulensis Cole 1928

Rank: Species

Type locality: On the Tuxpam River near the village of Chapapote, Mexico.

Type age (chronostrat): Eocene. Probably Jackson, Chapapote formation, grey clay.

Type specimens: pl. 32 (1), figs. 11-13, X25. Figs. 11-12, holotype; :

Type repository: Ithaca; Paleontological Research Institution, Ithaca, New York;

Described on page(s) : 17

Current identification/main database link: Turborotalia cerroazulensis (Cole 1928)

Original Description
Test relatively large for the genus, rotaliform, dorsal side very flat, ventral side strongly convex, periphery angulate, chambers few, inflated, about 4 in the last formed coil, rapidly increasing in size so that the last makes up over one quarter of the test; sutures distinct, depressed; wall very finely granular; aperture rather large, extending from the periphery to the umbilicus.

Size: Diameter 0 .54 mm. Height 0.33 mm.

Etymology: From Cerro Azul (Blue Hill) Tampico, Mexico [site of the biggest oil gusher of all time in 1916]

Extra details from original publication
The erecting of this species required considerable courage on my part, as it is very near the form to which Galloway and Wissler applied the name G. crassaformis. It differs from this species in not being umbilicate and in the less angularity of the periphery. The aperture is also larger and the shape of the chambers slightly different.

Editors' Notes
NB Originally spelt as Globorotalia cerro-azulensis Cole 1928 but insertion of the hyphen was a mistake which was automatically corrected.

References:

Cole, W. S. (1928). A foraminiferal fauna from the Chapapote formation in Mexico. Bulletins of American Paleontology. 14(53): 1-32. gs

Pearson, P. N., Premec-Fucek, V. & Premoli Silva, I. (2006b). Taxonomy, biostratigraphy, and phylogeny of Eocene Turborotalia. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 15): 433-460. gs V O