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
Other pages this level: Haeuslerina, Haigella, Hantkenina, Hantkenina (Applinella), Hantkenina (Aragonella), Hantkenina (Cribrohantkenina), Hantkenina (Hantkenina), Hartella, Hastigerina, Hastigerina (Bolliella), Hastigerina (Hastigerina), Hastigerinella, Hastigerinella (Hastigerinoides), Hastigerinoides, Hastigerinopsis, Hedbergella, Hedbergella (Asterohedbergella), Hedbergina, Helvetiella, Helvetoglobotruncana, Hendersonia, Hendersonites, Heterohelix, Heterohelix (Pseudoguembelina), Hillsella, Huberella,

Daughter taxa: (blue => in age window 0-800Ma)

= Braunella punctulata
= Laeviheterohelix dentata
= Planoheterohelix globulosa
= Planoheterohelix globulosa
= Heterohelix labellosa
= Spiroplecta americana
= Planoheterohelix globulosa
= Planoheterohelix olssoni
= Planoheterohelix globulosa
= Planoheterohelix planata
= Planoheterohelix globulosa
= Planoheterohelix globulosa
= Braunella punctulata
= Planoheterohelix rumseyensis
= Heterohelix sphenoides
= Heterohelix stenopos
= Planoheterohelix globulosa

= Zeauvigerina virgata
= Heterohelix vistulaensis


Citation: Heterohelix Ehrenberg 1843
Rank: Genus
Type species: Textillaria americana Ehrenberg 1843
Description on pages: 429

Current identification/main database link: Heterohelix Ehrenberg 1843

Original Description
Cellulae primae nonnullis spirales. Tales formae forsan proprio generi addicendae sunt: Heterohelix.

Approximate translation (by JRY 2019 - with assistance from google translate)
Sometimes the first chambers are spirally arranged. These forms can perhaps be assigned their own genus: Heterohelix.
N.B. This brief description appears after the description of Textilaria americana and is used to distinguish this form from similar biserial forams without the initial spiral portion. 

Editors' Notes
NB Gender - the greek word helix is a feminine noun.
The generic descriton follows the description of Textillaria americana and is generally taken as meaning that forms similar to T. americana, but with an initial spiral, should go in the new genus Heterohelix. See discussions in Loeblich 1951, Frerichs & Gaskill 1978, and Georgescu & Huber 2009.


Ehrenberg, C. G. (1843b). Verbreitung und Einfluss des mikroscopischen Lebens in Süd- und Nord Amerika. Bericht k. preuss. Akad. Wiss. Berlin. 1841: 291-446. gs :: ::

Frerichs, W. E. & Gaskill, C. H. (1978). Textilaria americana Ehrenberg: Type species of Heterohelix. Journal of Foraminiferal Research. 8(2): 143-146. gs :: ::

Georgescu, M. D. & Huber, B. T. (2009). Early evolution of the Cretaceous serial planktic foraminifera (late Albian-Cenomanian). Journal of Foraminiferal Research. 39: 335-360. gs :: ::

Loeblich, A. R. (1951). Coiling in the Heterohelicidae. Contributions from the Cushman Foundation for Foraminiferal Research. 2: 106-110. gs :: ::


Heterohelix compiled by the pforams@mikrotax project team viewed: 7-7-2020

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