Trifidospongus Noble & Renne, 1990

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 : 461

Trifidospongus Noble & Renne, 1990

Trifidospongus Noble & Renne, 1990: 388 .

TYPE SPECIES. — Trifidospongus dekkasensis Noble & Renne, 1990 ( Noble & Renne 1990: 388, pl. 1, fig. 1-3, 6).

AGE AND LOCATION OF TYPE MATERIAL. —Permian, eastern Klamath mountains, USA.

TAXON CODE. — 179.

STATUS. — Junior synonym of Triplanospongos Sashida & Tonishi, 1988 .

DIAGNOSIS. — “Trilobate to triradiate test of coarse spongy material surrounding an inner trifurcating structure comprised of two thickened bars running parallel to subparallel down center of ray. Bars merge with spongy cortex at distal end of rays. Cross sections of rays are ovate. Pores are subcircular to polygonal. The two primary bars are connected by a series of smaller more delicate secondary bars which run perpendicular like rungs of a ladder. Secondary bars are not well preserved in the type material. Rays end in a terminal spine. Spongy cortex is comprised of multiple stacks of porous framework. Pores are arranged linearly and meet at equant triplejunctions. Bars which comprise the pore frames are of consistent thickness and don’t swell into nodes at their juncture nor become flattened.” ( Noble & Renne 1990: 388).

REMARKS

The publication of Sashida & Tonishi (1988) predated that of Noble & Renne (1990) making this the junior synonym.