Archaeoglobigerina cretacea d'Orbigny 1840 from: Van Eijden, A.J.M.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 . |
Notice: This catalogue page may contain unedited data.
|
Species Archaeoglobigerina cretacea d'Orbigny 1840 |
|
|
Discussion / Comments: |
Caron (1985):
The species differs from A. blowi in having 6 instead of 4
chambers in the last whorl. The rounded periphery is marked
not only by an imperforate band, but also by two faint keels,
which may be absent on the last chamber.
Van Eijden & Smit (1991):
Remarks. Higher trochospiral forms, which are intermediate between this species and A. australis, are common. In the Maestrichtian, intermediate forms with Rugoglobigerina hexacamerata Brönnimann, 1952a also occur. The species is most common in Campanian samples. |
Systematics: |
5 Classis Foraminifera
Familia Globotruncanidae
Genus Archaeoglobigerina
Species Archaeoglobigerina cretacea
|
Synonym list: |
Caron (1985):
Van Eijden & Smit (1991):
|
References: |
d'Orbigny,A. (1840): Mémoires sur les foraminifères de la craie blanche du bassin de Paris . Mémoires de la Société Géologique de France Vol. 4 p. 1-51
Banner,F.T. and Blow,W.H. (1960): Some primary types of species belonging to the superfamily Globigerinaceae . Contributions from the Cushman Foundation for Foraminiferal Research Vol. 11(1) p. 1-41
Caron,M. (1985): Cretaceous planktic foraminifera. In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 17–86
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
|

This work is licensed under a Creative Commons Attribution 2.5 License.
|
|