Catalog - Catapsydrax stainforthi Catalog - Catapsydrax stainforthi

CATALOG OF ORIGINAL DESCRIPTIONS: Catapsydrax stainforthi Bolli, 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 -> C -> Catapsydrax -> Catapsydrax stainforthi
Other pages this level: C. apenninicus, C. echinatus, C. golicynensis, C. gortanii, C. indianus, C. parvulus, C. prahovensis, C. stainforthi, C. unicavus, C. venzoi

Catapsydrax stainforthi

Citation: Catapsydrax stainforthi Bolli, Loeblich & Tappan 1957
Taxonomic rank: species
Type specimens: Holotype (USNM P4840) Paratype: unfigured (USNM P4841) USNM P4842).
Type age (chronostrat): Miocene
Type locality: Holotype (USNM P4840) and unfigured paratype (USNM P4841) from the Cipero formation, Catapsydrax stainforthi zone (Miocene), Cipero Coast section, Trinidad, B. W. I. Unfigured paratypes (USNM P4842) from the Ste.Croix member of the Brasso formation (basal Globiger inatella insueta zone, Miocene), Ste. Croix quarry, near Broomage trigonometric station, south of Princes Town, Naparima region, Trinidad, B. W. I.
Type repository: Washington; USNM

Linked specimens: USNM-4842 USNM-4840 USNM-4841

Current identification/main database link: Globorotaloides stainforthi (Bolli, Loeblich, and Tappan, 1957)


Original Description

Test free, small, trochospiral, chambers subglobular to ovate, forming about two whorls, with four or rarely five chambers in the final whorl ; sutures distinct, radial, straight to curved, depressed ; wall calcareous, perforate, surface pitted; primary aperture interiomarginal, umbilical, and covered by a single umbilical bulla with a small infralaminal accessory aperture opening over each suture of the final whorl.

Size:
Greatest diameter of holotype 0.36 mm., thickness 0.26 mm. Paratypes range from 0.26 to 0.42 mm. in diameter.

Etymology:
The specific name is given in honor of R. M. Stainforth, in recognition of his work on the planktonic Foraminifera.

Extra details from original publication

Remarks: Catapsydrax stainforthi, new species, differs from C. dissimilis (Cushman and Bermudez) in being about one-half as large, and in having a more closely appressed bulla which may extend a short way along the sutures and which has much smaller arched
accessory openings that are restricted to the area over the sutures, instead of the relatively large arches of C. dissimilis which may open over much of the umbilical area of a chamber. It differs from C. parvulus, new species, and C. unicamis, new species, in having the four
or more smaller accessory openings beneath the umbilical bulla, rather than a single larger opening at one side only.

References:

Bolli, H. M., Loeblich, A. R. & Tappan, H. (1957). Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae and Globotruncanidae. 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: 3-50. gs

Coxall, H. K. & Spezzaferri, S. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene Catapsydrax, Globorotaloides, and Protentelloides. 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 4): 79-124. gs


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Catapsydrax stainforthi compiled by the pforams@mikrotax project team viewed: 13-11-2025

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