CATALOG OF ORIGINAL DESCRIPTIONS: Heterohelix labellosa Nederbragt 1991

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> H -> Heterohelix -> Heterohelix labellosa
Other pages this level: H. (Chiloguembelina) pseudotessera directa, H. (Heterohelix) planeobtusa, H. dentata, H. fayose, H. ivandeklaszi, H. labellosa, H. navarroensis, H. nkporoensis, H. olssoni, H. orientalis, H. pachymarginata, H. pseudoglobulosa, H. pseudoreussi, H. robusta, H. rumseyensis, H. sphenoides, H. stenopos, H. striata aegyptiaca, H. suwalkensis, H. varsoviensis, H. virgata, H. vistulaensis

Heterohelix labellosa

Citation: Heterohelix labellosa Nederbragt 1991
Rank: Species
Type locality: El Haria, near El Kef, Tunisia
Type age (chronostrat): Upper Maastrichtian
Type specimens: Not given
Type repository: Washington; USNM

Linked specimens: USNM-463432

Current identification/main database link: Planoheterohelix labellosa (Nederbragt, 1991)


Original Description
Test biserial, sides rapidly flaring in the juvenile, sides subparallel in the adult. Juvenile chambers globular, adult chambers subglobular to reniform. Test covered with distinct continuous costae, with fine to medium sized pores in between the costae; sutures depressed. Aperture with small flanges, both the aperture and flanges bordered by a rim, or lip. Relicts of apertural flanges of preceding chambers distinctly visible along the median suture. The terminal chamber may have two apertures

References:

Nederbragt, A. J. (1991). Late Cretaceous biostratigraphy and development of Heterohelicidae (planktic foraminifera). Micropaleontology. 37: 329-372. gs


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Heterohelix labellosa compiled by the pforams@mikrotax project team viewed: 16-4-2021

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