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Species Abathomphalus mayaroensis Bolli 1951


Discussion / Comments:
Caron (1985):
This species is one of the more distinctive among the Globo- truncanidae. The spiral side is slightly convex, the umbilical side slightly concave. The two peripheral keels are variably spaced, greatest separation occurring at the midpoints of the chambers. The keels are composed of short, radially oriented costeilae- A. mayaroensis diners from A. inlermedius in the presence of a double keel on all chambers of the last whorl.
Van Eijden & Smit (1991):
Remarks. Rare and usually rather small, with a weakly developed second keel, the encountered A. mayaroensis specimens are intermediate with A. intermedius (Bolli, 1951) at Sites 752, 754, and 758.
Systematics:

5
 Classis Foraminifera
  Familia Globotruncanidae
   Genus Abathomphalus
    Species Abathomphalus mayaroensis
Synonym list:
Caron (1985):
1951 Globotruncana mayaroensis Bolli. - Bolli : 190,198 pl 35 figs 10-12
1985 Abathomphalus mayaroensis Bolli. - Caron : p.48 figs 21.10-11, 11,13,14
Huber (1990):
1951 Globotruncana mayaroensis Bolli. - Bolli : p. 190, 198 pl. 35, figs. 10-12
1990 Abathomphalus mayaroensis Bolli. - Huber : Pl. 5, Figs. 3-4
Van Eijden & Smit (1991):
1951 Globotruncana mayaroensis Bolli. - Bolli : 190, 198 pl. 35, figs. 10-12
1991 Abathomphalus mayaroensis Bolli. - Van Eijden & Smit : p.105
References:

Bolli,H.M. (1951):
The genus Globotruncana in Trinidad, B.W.I. . Journal of Paleontology Vol. 25 p. 187-199

Caron,M. (1985):
Cretaceous planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 17–86

Huber,B.T. (1990):
Maestrichtian planktonic foraminifer biostratigraphy of the Maud Rise (Weddell Sea, Antarctica): ODP Leg 113 Holes 689B and 690C.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 113 Eds: Barker, P.F.Kennett, J.P.O'Connell, S.B.Pisias, N.G. p. 489-513

Van Eijden,A.J.M. and Smit,J. (1991):
Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
Anonymous: Unedited TaxonConcept data
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