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Catapsydrax parvulus Bolli et al. 1957 from: Bolli, H.M. (1957): Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I.. In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123
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Species Catapsydrax parvulus Bolli et al. 1957


Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test small, subglobular, low trochospiral, chambers ovate, increasing rapidly in size as added, usually four in the final whorl; sutures gently depressed; surface distinctly cancellate with polygonal ridges surrounding the pore pits (PI. 2, Fig. 2); primary aperture interiomarginal, umbilical, and covered by an arched bulla with a single infralaminal accessory aperture at one side.
Discussion / Comments:
Kennett & Srinivasan (1983):
Cs. parvulus differs from Cs. unicavus, which also has a single accessory opening, in being much smaller, with less globular chambers and nearly flush sutures.
Systematics:

3
 Classis Foraminifera
  Genus Beella
   Genus Catapsydrax
Synonym list:
Kennett & Srinivasan (1983):
. 1957 Catapsydrax parvulus Bolli et al.. - Bolli et al. : p.36 pl 7 figs 10a-c
Bolli (1957):
1957 Catapsydrax parvulus Bolli et al.. - Bolli : pl. 7, figs 10a-c
1957 Catapsydrax parvulus Bolli et al.. - Bolli et al. : p. 37 pl. 7, fig. 11
Chaisson & Leckie (1993):
1957 Catapsydrax parvulus Bolli et al.. - Bolli et al. : p.36 pl. 7; fig. 10a-c
1983 Catapsydrax parvulus Bolli et al.. - Kennett & Srinivasan : p.26 pl. 2; fig. 7-9
Quilty (1976):
1957 Catapsydrax parvulus Bolli et al.. - Bolli et al. : p.36 pl. 7, fig. 10a-c
1976 Catapsydrax parvulus Bolli et al.. - Quilty : p.679 pl. 7, figs. 20-21
References:

Bolli,H.M.; Loeblich,A.R. and Tappan,H. (1957):
The Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae, and Globotruncanidae . U.S. National Museum Bull. Vol. 215 p. 3-50

Bolli,H.M. (1957):
Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I..
In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123

Quilty,P.G.. (1976):
Planctonic foraminifera DSDP Leg 34- Nazca Plata . DSDP initial reports Vol. 34

Kennett,J. and Srinivasan,M.S. (1983):
Neogene Planktonic Foraminifera - A Phylogenetic Atlas.

Chaisson,W.P. and Leckie,R.M. (1993):
High-Resolution Planktonic Foraminifer Biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific).
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 130 Eds: Berger, W.H.Kroenke, L.W..Mayer, L.A..et al. p. 137-178
Anonymous: Unedited TaxonConcept data
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