Daughter taxa (time control age-window is: 0-800Ma) | Granddaughter taxa | ||||
 callopisma, img1868.jpg) |  callopisma, img1869.jpg) |  callopisma, img1989.jpg) |  | Anthocyrtella neptune records: 110 | Anthocyrtella anthemis Anthocyrtella callopisma Anthocyrtella furcata Anthocyrtella mespilus Anthocyrtella spatiosa |
 |  aurelia Clark and Campbell 1945.jpg) |  |  | Clathrocyclas neptune records: 146 | Clathrocyclas aurelia Clathrocyclas australis Clathrocyclas cassiopeiae Clathrocyclas semeles Clathrocyclas universa Clathrocyclas sp. |
Catalog entries: Anthocyrtidae [no catalog entry yet]
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Published descriptions
Haeckel 1887 -
Dicyrtida multiradiata. (Cyrtoidea with a two-jointed shell, divided by a transverse constriction into cephalis and thorax, and bearing numerous—four to nine or more—radial apophyses.)
Caulet, in Suzuki et al. 2021-
It appears difficult distinguish the Anthocyrtididae from the Theopiliidae and Cycladophoridae due to homeomorphy. Differing from the Anthocyrtididae, both the Theopiliidae and Cycladophoridae lack a ventral tube or a semblance of its trace. The Anthocyrtididae are commonly found in the late Cretaceous while Cenozoic members are uncommon. The rela- tionship among the three families is not yet fully understood. This can be attributed to the nearly identical cephalic structure between the Theopiliidae and Cycladophoridae, regardless of them being distant families at Lineage level (Sandin et al. 2019; See also remarks for Theopiliidae and Cycladophoridae). Tochilina & Vasilenko (2015, 2018b) identified Anthocyr- tididae’s overall resemblance to Cycladophoridae as opposed to the Theopiliidae. The cephalic structure was illustrated for Cretaceous “Neosciadiocapsidae” (Pessagno 1969: pl. 24, figs 1, 2, pl. 27, figs 1, 2, pl. 30, figs 1, 2, pl. 34, figs 1, 2, pl. 35, figs 1, 2, pl. 35, fig. 7, pl. 36, figs 1, 2, pl. 37, figs 3, 6, pl. 38, figs 1, 2), for Paleocene Anthocyrtis (Nishimura 1992: pl. 4, figs 6, 9) and for Eocene Anthocyrtis (O’Connor 1999: pl. 2, figs 12-22). Based on the stable position of the Ax-rod, the codes indicated by Pessagno (1969) may lead to confusion . The “a” in pl. 24, fig. 1 and “c” in pl. 30, figs 1 and 2 are V-rod. The cephalis and upper part of the thorax are covered by an imperforated thick siliceous wall in most Anthocyrtididae. In some Cenozoic members, these parts are not covered with a wall. In such cases, the double Dl-arch extends as a part of the thoracic pore frame (e.g., Nishimura 1992: pl. 4, figs 6b, 9b).
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:
References:
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Anthocyrtidae compiled by the radiolaria@mikrotax project team viewed: 13-7-2026
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