Grandetortura Sashida & Tonishi, 1991: 90 Taxonomy of Paleozoic radiolarian genera Noble, Paula Aitchison, Jonathan C. Danelian, Taniel Dumitrica, Paulian Maletz, Jörg Suzuki, Noritoshi Cuvelier, Jessie Caridroit, Martial O’Dogherty, Luis Geodiversitas 2017 2017-09-29 39 3 419 502 Sashida & Tonishi, 1991 Sashida & Tonishi 1991 [238,669,1873,1900] Polycystina Pseudolitheliidae Grandetortura GBIF Chromista Latentifistularia 48 467 Radiozoa genus      Grandetortura Sashida & Tonishi, 1991: 90.    TYPESPECIES. —  Grandetortura nipponica Sashida & Tonishi, 1991( Sashida & Tonishi 1991: 92, pl. 1, fig. 1-15, pl. 2, fig. 1-14).  AGE AND LOCATION OF TYPEMATERIAL. — Upper Permian, Kashiwara, Itsukaichitown, Tokyo Prefecture, central Japan.  TAXON CODE. — 200. STATUS. — Valid.  DIAGNOSIS. — “Grandetorturiidae having subspherical or subelliptical outer shell with spherical or elliptical medullary shell without outer spines. Porous or pillared skeleton superimposed streptospirally around medullary shell creating a tube-like tunnel inside the skeleton.” ( Sashida & Tonishi 1991: 90).