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Species Catapsydrax stainforthi Bolli et al. 1957


Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test small, low trochospiral, subquadrate; chambers spherical to subglobular, usually four in the final whorl; sutures depressed, radial to slightly curved; surface distinctly cancellate; aperture interiomarginal, umbilical, and covered by a single umbilical bulla with a small infralaminal accessory apertures opening over each suture of the final whorl.
Discussion / Comments:
Kennett & Srinivasan (1983):
Distinguished from Cs. dissimilis in being smaller in size and in possessing a more closely oppressed bulla, which gener- ally extends a short distance along the sutures, and with accessory apertures restricted to the area over the sutures.
Bolli & Saunders (1985):
A short ranged species smaller than C. dissimilis and having 4 to 5 less inflated chambers in the last whorl giving a flatter appearance to the test. The bulla is flat and inclined to extend along the sutures. Up to 5 small apertures are confined to positions above the sutures, the maximum number being controlled by the number of chambers in the last whorl. The test does not have the coarse pores seen in C. dissimilis C. stainforthi praestainforthi (Blow) has a stated range beginning in the Globigerinoides primordius Zone which, if proved, would extend the range of the species downwards. The relationship of C. incrusta (Akers) is not certain; both Blow (1969) and Stainforth et al. (1975) consider it as distinct from C. stainforthi.
Systematics:

3
 Classis Foraminifera
  Genus Beella
   Genus Globigerinoides
    Species Catapsydrax stainforthi
     Species Catapsydrax unicavus
Synonym list:
Kennett & Srinivasan (1983):
. 1957 Catapsydrax stainforthi Bolli et al.. - Bolli et al. : p.37 pl 7 figs 11a-c
Bolli & Saunders (1985):
1957 Catapsydrax stainforthi Bolli et al.. - Bolli et al. : p.37 pl. 7, fig. 11
1985 Catapsydrax stainforthi Bolli et al.. - Bolli & Saunders : p.187 figs. 17.5: 7,9,12
Bolli (1957):
1957 Catapsydrax stainforthi Bolli et al.. - Bolli :
1957 Catapsydrax stainforthi Bolli et al.. - Bolli et al. : p. 37 pl. 7, fig. 9
Vincent & Toumarkine (1990):
1957 Catapsydrax stainforthi Bolli et al.. - Bolli et al. : p. 37 pl. 7, fig. 11
1990 Catapsydrax stainforthi Bolli et al.. - Vincent & Toumarkine : p. 830 pl. 1, figs 5, 10
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

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

Bolli,H.M. and Saunders,J.B. (1985):
Oligocene to Holocene low latitude planktic foraminifers.
In: Plankton Stratigraphy Eds: Bolli, H.M.Saunders, J.B. p. 155-262

Vincent,E. and Toumarkine,M. (1990):
Neogene planktonic foraminifers from the Western Tropical Indian Ocean, Leg 115.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 115 Eds: Duncan, R.A..Backman, J.Peterson, L.C. p. 795-836
Anonymous: Unedited TaxonConcept data
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