Heterohelicoidea

Heterohelicoidea
Temporal range: Early Cretaceous - Present
(Aptian - present)
Scientific classification
Domain: Eukaryota
(unranked): SAR
(unranked): Rhizaria
Superphylum: Retaria
Phylum: Foraminifera
Class: Globigerinida
Order: Globigerinina
Superfamily: Heterohelicoidea
Cushman, 1927

Heterohelicodea is a superfamily of globigerid forams with planispiral or enrolled biserial tests, found in marine sediments of Early Cretaceous to the present, in which chambers vary from globular to elongate and the primary aperture is equatorial in position. It is in the suborder Rotaliina[1] and the order Rotaliida.[2].[3] Heterohelicoidea includes three families, the Chiloguembelinidae, Guembelitriidae and the Heterohelicidae, the latter are divided into three subfamilies

The superfamily has the name Heterohelix which it originates from the main genus.

References

  1. ↑ Loeblich, A.R., Jr. y Tappan, H. (1987). Foraminiferal general and their clasification. Van Nostrand Reinhold Company (ed.), 2 vol., 1-970, 1-212 + 847,
  2. ↑ Loeblich, A.R., Jr. y Tappan, H. (1992). Present Status of Foraminiferal Classification. Studies in Benthic Foraminifera en Benthos'90, Sendai (1990), Tokai University Press, 93-102.
  3. ↑ BouDagher-Fadel, M.K. (2013). Biostratigraphic and geological significance of planktonic foraminifera. Office of the Vice Provost Research (OVPR), University College, London, 287 p.
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