Bientactinosphaera Afanasieva, 2000

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 : 439

Bientactinosphaera Afanasieva, 2000

Bientactinosphaera Afanasieva, 2000a: 371 .

TYPE SPECIES. — Entactinosphaera variacanthina Foreman, 1963 ( Foreman 1963: 278, pl. 3, fig. 8, pl. 4, fig. 3a-b).

AGE AND LOCATION OF TYPE MATERIAL. — Upper Devonian, Huron Member, Ohio Shale, USA.

TAXON CODE. — 081.

STATUS. — Junior synonym of Trilonche Hinde, 1899 (by Maldonado & Noble 2010: 84).

DIAGNOSIS. — “Test spherical with two porous shells. Internal centrally located framework takes form of slender six-rayed spicule with rays extended by three-bladed main spines.” ( Afanasieva 2000a: 371). REMARKS

This name was proposed by Afanasieva (2000a) to accommodate 2-shelled species, formerly included in Entactinosphaera Foreman, 1963 although Trilonche Hinde, 1899 encompasses these forms and has priority over Bientactinosphaera .