Catalog - Globorotalia hispidicidaris Catalog - Globorotalia hispidicidaris

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia hispidicidaris Loeblich & Tappan 1957

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 hispidicidaris
Other pages this level: << < G. fohsi robusta, G. formosa formosa, G. formosa gracilis, G. gavalae, G. gemma, G. globigeriniformis, G. greenhornensis, G. hadii, G. haunsbergensis, G. haynesi, G. hemisphaerica, G. hessi, G. hexacamerata, G. hirsuta aemiliana, G. hirsuta eastropacia, G. hispidicidaris, G. humerosa, G. hungarica, G. ikebei, G. imitata, G. inconspicua, G. inconspicua aculeata, G. inflata, G. inflata praeinflata, G. inflata triangula, G. insolita, G. involuta, G. irrorata, G. juanai, G. kajmatica, G. kilabiyaensis> >>

Globorotalia hispidicidaris

Citation: Globorotalia hispidicidaris Loeblich & Tappan 1957
Taxonomic rank: species
Type locality: Types and occurrence: Holotype (USNM P5875) from the Aquia formation, 15 to 17 feet above the base of the exposure, west bank of Potomac River near mouth of Aquia Creek, S. 10° E. of Brent Point on U. S. Geological Survey Nanjemoy Md.-Va. Quadrangle, 1:62,500, 1913, reprinted 1945, Collected by A. R. Loebiich, Jr., and Richard A. Page.

Linked specimens: USNM-5875

Current identification:


Original Description

Test free, of medium size, trochospiral, spiral side gently convex, umbilical side inflated, periphery angularly truncate, peripheral outline gently lobulate; chambers increasing slowly in size, 5 per whorl in early stages, final whorl with 6 to 7 chambers; sutures dis-
tinct, slightly depressed, curved and obfique on the spiral side, more deeply depressed, straight and radial aroimd the small umbilicus on the umbUical side; wall calcareous, finely perforate, surface spinose throughout, although final one or two chambers may be less promi-
nently spinose, distinctly spinose at the peripheral angle, presenting a keel-like appearance ; aperture a low interiomarginal, extraumbilical-umbifical arch extending to the periphery.


Size:
Holotype 0.35 mm. in diameter.

Etymology:
The specific name is from the Latin hispidus, bristly, prickly, and cidaris, a diadem or tiara, referring to the general appearance of the species.

Extra details from original publication

Remarks: This species resembles Globorotalia conicotruncata Subbotina from the Russian Danian(?) in the numerous chambers per whorl, truncated spiral side, and the angular-trimcate periphery. The present species is smaller and has a promiaently spinose surface.

It differs from Globigerina mckannai White in being less thickened and more nearly keeled, in having more chambers per whorl, more obhque sutures on the spiral side, and a truncate rather than rounded periphery. Globorotalia apanthesma, new species, has fewer
chambers per whorl, a less truncate periphery and the chambers slope gradually from the peripheral keel to the umbilical shoulder. The wall surface is also less prominently spinose.


Editors' Notes
Has ben cited as Acarinina hispidicidaris

References:

Loeblich, A. R. & Tappan, H. (1957b). Planktonic foraminifera of Paleocene and early Eocene Age from the Gulf and Atlantic coastal plains. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin . 215: 173-198. gs


logo

Globorotalia hispidicidaris compiled by the pforams@mikrotax project team viewed: 10-9-2026

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/pforams/index.php?id=131145 Go to Archive.is to create a permanent copy of this page - citation notes



Add Comment

* Required information
Captcha Image

Comments

No comments yet. Be the first!