Phormostichoartus

Daughter taxa (time control age-window is: 0-800Ma)
				Phormostichoartus caryoforma neptune records:
				Phormostichoartus corbula neptune records: 499
				Phormostichoartus crustula neptune records: 136
				Phormostichoartus doliolum neptune records: 800
				Phormostichoartus fistula neptune records: 850
				Phormostichoartus furcaspiculata neptune records: 22
				Phormostichoartus marylandicus neptune records: 293
				Phormostichoartus multiseriatus neptune records: 22
				Phormostichoartus pitomorphus neptune records: 60
				Phormostichoartus platycephala neptune records: 44
				Phormostichoartus schneideri neptune records: 1
				Phormostichoartus strongi neptune records:
				Phormostichoartus sp. neptune records: 81

Taxonomy

Catalog entries: Phormostichoartus

Original description: Cyrtophormis having the shell with numerous (12 to 20 or more) terminal feet.
Remarks on original description: [A new name proposed for Acanthocyrtis Haeckel, 1887a, p.1461, a junior homonym of Acanthocyrtis Haeckel, 1881a.]

[In the original publication (Haeckel, 1881, p.437) Acanthocyrtis was placed adjacent to Eucyrtidium (which genus was marked by an asterisk indicating a new genus!) and stated to be distinguished by ''testa spinosa,'' whereas Eucyrtidium was stated to be characterized by having ""testa laevi."" In 1887 Haeckel (p.1461) used the name Acanthocyrtis first as a subgenus of Cyrtophormis Haeckel 1887 stating, ""shell with numerous (12-20 or more) terminal feet and again later (p.1494) he used it as a subgenus of Eucyrtidium Ehrenberg 1847 where it was differentiated as having "Joints of the shell of very different lengths. Surface spiny. It is apparent that the later description is more nearly in keeping with the original intent of the description of Acanthocyrtis and this name should be retained for a subgenus of Eucyrtidium. For the other group a new name is needed.
The typical subgenus of Cyrtophormis has five to seven terminal feet in contrast with the greater number in this subgenus.]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Artostrobiidae

Phormostichoartus compiled by the radiolaria@mikrotax project team viewed: 9-9-2024 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/radiolaria/index.php?id=205012 Go to Archive.is to create a permanent copy of this page - citation notes

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