Pyrgupyxis Hendey, 1969, nom. inval.

Type species: a type species (generitype) appears not to have been designated.

Publication details: Hendey, 1969: 3

Original publication and holotype designation: Hendey, N.I. (1969). Pyrgupyxis, a new genus of diatoms from a South Atlantic Eocene core. Occasional Papers of the California Academy of Sciences 72: 1-6.

Fossil: This is a genus of fossil species, or a genus with a fossil type species, or a genus the type species of which was originally described as a fossil.

The most recent alteration to this page was made on 2024-08-07 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Nikolaev, V.A., Kociolek, J.P., Fourtanier, E., Barron, J.A. & Harwood, D.M. (2001). Late Cretaceous diatoms (Bacillariophyceae) from the Marca Shale member of the Moreno Formation, California. Occasional Papers of the California Academy of Sciences 152: 1-119, 39 plates.

Nomenclatural note
INA notes (in faint script): "invalid no type" and this is accepted by ING. However, Williams (2024: 44) notes "When Hendey described the genus Pyrgupyxis he included nine species, one new, Pyrgupyxis eocena, the others from species already known and described (Hendey 1969, p. 5). Although considered by some to be invalidly published as no type species was designated (e.g., Farr & Zijlstra I996), as noted in Four­tanier & Kociolek (1999, pp. 8, 117), the only species to be fully described by Hendey was Pyrgupyxis eocena Hendey, which was annotated 'new genus, new species' in the figure caption (Hendey 1969, p. 4) and thus it would be reasonable to assume Hendey intended it to be the type of the genus." - (07 August 2024) - M.D. Guiry

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Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=46639

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 August 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 04 June 2025