Anthocyrtoma


Classification: rads_cenozoic -> hidden -> Mesozoic rads -> Anthocyrtoma
Sister taxa: Acaeniotyle, Acanthocircus, Actinommura, Afens, Albatrossium, Alievium, Amphibrachium, Amphipyndax, Amphiternis, Andromeda, Anthocyrtoma, Arbatrossidium, Archaeodictyomitra, Archaeohagiastrum, Archaeospongoprunum, Archicapsa, Archicorys, Artocapsa, Artocyrtis, Astractinium, Astrocyclia, Astromma, Atlanticella, Aulacantha, Aulographonium, Botryocylinder> >>
Daughter taxa (time control age-window is: 0-800Ma)
Anthocyrtoma sp.

neptune records: 211

Taxonomy

Citation: Anthocyrtoma Haeckel 1887
Rank: genus
Basionym: Anthocyrtoma

Catalog entries: Anthocyrtoma

Original description: Sethophormida (vel Dicyrtida multiradiata aperta) without thoracic ribs, with six terminal feet around the mouth. Cephalis free, with an apical horn.

The genus Anthocyrtoma and the four following genera form together the peculiar group of Carpocanida, comprising all those Sethophormida in which the original thoracic ribs are lost, and only the terminal feet remain. Anthocyrtoma is the simplest form of this group, possessing only six terminal feet, three primary perradial, and three alternating, secondary, interradial. It may be directly derived either from Lychnocanium by interpolation of three interradial feet, or from Hexaspyris by loss of the sagittal ring.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs


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Anthocyrtoma compiled by the radiolaria@mikrotax project team viewed: 5-3-2021

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203175 Go to Archive.is to create a permanent copy of this page - citation notes



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