Allocyrtium Afanasieva, 1986

Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, Geodiversitas 39 (3), pp. 419-502 : 472

publication ID

https://doi.org/ 10.5252/g2017n3a4

publication LSID

urn:lsid:zoobank.org:pub:603CD230-5931-4506-A122-9CBC2F89189F

persistent identifier

https://treatment.plazi.org/id/0A488798-6A0C-455D-FEB5-FA7E08AFAE01

treatment provided by

Felipe

scientific name

Allocyrtium Afanasieva, 1986
status

 

Allocyrtium Afanasieva, 1986

Allocyrtium Afanasieva, 1986: 31 .

TYPE SPECIES. — Archocyrtium castuligerum Deflandre, 1972 ( Deflandre 1972a, pl. 4, fig. 6, nomen nudum) ; Deflandre 1972b: 15.

AGE AND LOCATION OF TYPE MATERIAL. — Visean (Lower Carboniferous), Cabrières, Hérault, Montagne Noire, France.

TAXON CODE. — 218.

STATUS. —Junior synonym of Archocyrtium Deflandre, 1972b (herein). DIAGNOSIS. — “Раковина удлиненно-конической формы, стенка центральной субсферической части раковины – цефалиса пористая. Внутренний каркас представлен четырехлучевой спикулой, расположенной в центре цефалиса. Раковина несет четыре основные трехгранные иглы, три из которых окружают пилом, а одна, аборальная занимает осевое положение. Три основные иглы, окаймляющие пиломное отверстие, соединены широкой непористой пластинкой в виде субконического перистома.” ( Afanasieva 1986: 31).

DIAGNOSIS (English translation by J. P. Caulet – RadWorld database). — “Shell elongated-conical, central part of the subspherical part (cephalis) porous. Intetrnal structure represented by a four-rays spicule, at the centre of the cephalis. Four main spines, three-sided, three of them around the pylome, the other one, aboral, in axial location. The three main spines at the border of the pylome are reunited around the aperture by a wide, imperforate plate, shaped as a sub-conical peristome.”

REMARKS

The distinction of having an imperforate peristome, made by Afanasieva (1986) and used as a criterion to introduce a new genus, is herein regarded as a species rather than genus level difference.

Kingdom

Chromista

Phylum

Radiozoa

Class

Polycystina

Order

Spumellaria

Loc

Allocyrtium Afanasieva, 1986

Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis 2017
2017
Loc

Allocyrtium

AFANASIEVA M. S. 1986: 31
1986
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