CATALOG OF ORIGINAL DESCRIPTIONS: Catapsydrax unicavus 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 unicavus
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 unicavus

Citation: Catapsydrax unicavus Bolli, Loeblich & Tappan 1957
Rank: Species
Type locality: Types and occurrence: Holotype (USNM P4216) and unfigured paratype (USNM P4217) from the Cipero formation, Globigerina ciperoensis zone, exposure on San Fernando By-pass road, Trinidad, B. W. I. Collected by H. M. Bo11i. Unfigured paratypes (USNM P4837) from the Cipero formation, Olobigerinatella insueta zone (Miocene) Cipero Coast section, Trmidad, B. W. I. Collected by Hans G. Kugler.
Type age (chronostrat): Miocene
Type specimens: Holoyype:(USNM P4216) Paratypes:unfigured (USNM P4217),(USNM P4837.
Type repository: Washington; USNM

Linked specimens: USNM-4217 USNM-4837 USNM-4216

Current identification/main database link: Catapsydrax unicavus Bolli, Loeblich and Tappan 1957

Original Description
Test free, small, trochospiral, low-spired, periphery rounded; chambers subglobular, arranged in 2 whorls, only a few chambers per whorl, ranging from 6 in the first whorl to only 4 in the final whorl; sutures distinct, depressed, slightly curved; wall calcareous, perforate, surface punctate or cancellate in appearance, primary aperture interiomarginal, umbilical, and covered by a small subquadrate bulla which is attached at 3 sides, with an arched infralaminal accessory opening at the fourth side.

Size: Greatest diameter of holotype 0.31 mm., thickness 0.21 mm. Paratypes range from 0.26 to 0.36 mm. in greatest diameter.

Extra details from original publication

Remarks: Catapsydrax unicavus, new species, differs from C. dissimilis (Cushman and Bermudez) in being somewhat smaller, with less inflated chambers and less depressed sutures, and the umbilical bulla has a single accessory opening rather than two to four as in C.
dissimilis. Catapsydrax parvulus, new species, also has a single accessory opening, but differs in being much smaller, with a nearly smooth surface, less globular chambers and nearly flush sutures.


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 V O

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 V O

Olsson, R. K., Pearson, P. N. & Huber, B. T. (2006c). Taxonomy, biostratigraphy, and phylogeny of Eocene Catapsydrax, Globorotaloides, Guembelitrioides, Paragloborotalia, Parasubbotina, and Pseudoglobigerinella n. gen. 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 5): 67-110. gs V O

Pearson, P. N. & Wade, B. S. (2015). Systematic taxonomy of exceptionally well-preserved planktonic foraminifera from the Eocene/Oligocene boundary of Tanzania. Cushman Foundation for Foraminiferal Research, Special Publication. 45: 1-85. gs V O


Catapsydrax unicavus compiled by the pforams@mikrotax project team viewed: 25-11-2020

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