Triaenosphaera Deflandre, 1973

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 : 458

Triaenosphaera Deflandre, 1973

Triaenosphaera Deflandre, 1973c: 1150 ; 1960: 216 (nomen nudum).

Triaenoentactinosphaera Wang, 1997: 155 .

TYPE SPECIES. — Triaenosphaera sicarius Deflandre, 1973 ( Deflandre 1960: 216, pl. 1, fig. 10 [nomen nudum]; 1973c: 1150, pl. 2, fig. 3-4) .

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

TAXON CODE. — 168.

STATUS. — Valid.

DIAGNOSIS. — “Coque sphérique perforée munie de quatre cornes multicostulées, disposées selon les axes d’un tétraèdre” ( Deflandre 1973c: 1150).

DIAGNOSIS (English translation by Taniel Danelian). — “Spherical perforated shell bearing four multicostate spines, distributed along the four axes of a tetrahedron.”

REMARKS

“The type species, considered initially as consisting exclusively of a latticed cortical shell with four three-bladed and tetrahedrally placed spines, was found later by Won (1998, pl. 7, fig. 15) to bear an internal shell connected to the cortical one by four tetrahedrally placed rays aligned with the external spines. Unfortunately, this internal shell is rather poorly preserved in the specimen she illustrated, and the magnification of the figure is also too small not only to know the detailed morphology of this shell but also to see the possible remains of a supposed tetrahedral initial spicule. If such a spicule existed in this species, it should have been very thin, fibrillar. If not, the genus should be assigned to the order Spumellaria .” ( Dumitrica 2011: 210).