Stomiosphaera cardiiformis sp. nov. of the Upper Cretaceous of Cuba

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Published: Jan 1, 1962
DOI: https://doi.org/10.22201/igl.05437652e.1962.0.12.278
Keywords:
Stomiosphaera cardiiformis, Upper cretaceous, Cuba

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Agustín Ayala-Castañares
Geology Institute, National Autonomous University of Mexico, Scientific Research Circuit S/N, Ciudad Universitaria, Coyoacán, 04510, CDMX, Mexico.
George A. Seiglie
Oceanographic Institute, CRJ8+QM7, Cumaná 6101, Sucre, Venezuela.

Abstract

Stomiosphaera cardiiformis sp. nov. is described and illustrated, a microfossil "Incertae sedis" from the Upper Cretaceous (Campanian-Maastrichtian), from sediments of Las Villas province, Republic of Cuba. The finding of this new species in rocks younger than the Turonian, extends the stratigraphic distribution of the genus, since Bonet (1956, p. 61-63) and Bonet and Trejo (1958), place it from Albian to Turonian. The sediments in which it appears in Cuba have a well-defined age, since some genera of large foraminifera well known from the stratigraphic point of view were found associated with the new species, such as Sucoperculina, Gavelinella, Vaughaniana, Asterorbis and Orbitoides.


The taxonomic position of the genus and the remarkable homeomorphism between Stomiosphaera cardiiformis sp. nov. and the embryonic apparatus of Asterorbis aguayoi Palmer are discussed.

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How to Cite
Ayala-Castañares, A., & Seiglie, G. A. (1962). Stomiosphaera cardiiformis sp. nov. of the Upper Cretaceous of Cuba. Paleontología Mexicana, (12), 17–29. https://doi.org/10.22201/igl.05437652e.1962.0.12.278
Issue
No. 12 (1962): Nummoloculina Heimi Bonet in the Lower Cretaceous of Cuba and Stomiosphaera cardiiformis sp. nov. of the Upper Cretaceous of Cuba
Section
Palaeozoology
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References

BONET, F. (1956). Zonificación microfaunística de las calizas cretácicas del este de México. Bol. Asoc. Mexicana Geol. Petrol., v. 8, n. 7-8, p. 389-488, 31 láms, 4 figs. Texto 1-4.

BONET, F. y TREJO, M. (1958). Nuebos datos sobre la Familia Calcisphaerulidae (Protozoa). Anales Esc. Nac. Ciencias Biol. I. P. N. México, v.9, n. 1-4, p. 43-48, láms. 1-2.

POKORNY, V. (1958). Grundzüge der Zoologischen Mikropaläontologie. Veb Deutscher Verlag der Wissenchaften, v. 1, 582 p.

TREJO, M. (1960). La familia Nannoconidae y su alcance estratigráfico en América (Protozoa, Incertae sedis). Bol. Asoc. Mexicana Geol. Petrol., v. 12, n. 9-10, p. 259-314, láms. 1-3, 15 figs. Texto, 12 cuadros.