pforams@mikrotax - Thalmanninella evoluta pforams@mikrotax - Thalmanninella evoluta

Thalmanninella evoluta

Classification: pf_mesozoic -> Rotaliporidae -> Thalmanninella -> Thalmanninella evoluta
Sister taxa: T. appenninica, T. balernaensis, T. brotzeni, T. deeckei, T. evoluta, T. gandolfii, T. globotruncanoides, T. greenhornensis, T. micheli, T. praebalernaensis, T. reicheli, T. sp.


Citation: Thalmanninella evoluta Sigal, 1969
taxonomic rank: Species
Basionym: Rotalipora praebalernaensis forma evoluta Sigal 1969

Type images:

Original description: Unavailable name so description not repeaed

Entries in the Catalog of original descriptions: Rotalipora praebalernaensis forma evoluta

Geological Range:
Last occurrence (top): within P. appenninica zone (100.50-101.92Ma, top in Albian stage). Data source:
First occurrence (base): near top of P. ticinensis zone (90% up, 102.1Ma, in Albian stage). Data source:

Plot of range and occurrence data:


Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs O

Petrizzo, M. R. & Huber, B. T. (2006). Biostratigraphy and taxonomy of late Albian planktonic foraminifera from ODP Leg 171B (western North Atlantic Ocean). Journal of Foraminiferal Research. 36: 166-190. gs

Sigal, J. (1969). Contribution a une monographie des rosalines; II, L'espece Rotalipora appenninica (O. Renz, 1936), origine phyletique et taxonomie. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International Conference on Planktonic Microfossils, Geneva, 1967. E J Brill, Leiden 622-639. gs


Thalmanninella evoluta compiled by the pforams@mikrotax project team viewed: 23-7-2024

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Comments (4)


To add to the confusion it is also a primary junior homonym of Rotalipora cushmani var. evoluta Sigal, 1948 and should be renamed. (see please previous comment)


Jeremy Young(UK)

a mess indeed and I think you are right, this needs a new name, i will forward to Brian. Jeremy

Le Coze

Citation: Thalmanninella evoluta (Petrizzo & Huber, 2006)?

The 'original unavailable name' is Rotalipora praebalernaensis forma evoluta Sigal, 1969 it is not available under ICZN rules.

See ICZN art. 45.5. and following

If Petrizzo and Huber (2006) were the first to use Rotalipora evoluta (p. 181), they are deemed to be the authors with the date 2006.

ref.: Biostratigraphy and Taxonomy of Late Albian Planktonic Foraminifera from ODP Leg 171B (Western North Atlantic Ocean)

Jeremy Young(UK)

That certainly looks correct, I will have to add that to the list of taxonomic issues for Brian Huber to consider .

thanks Jeremy