Protoentactinia Kozur, Mostler & Repetski, 1996

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 : 435

Protoentactinia Kozur, Mostler & Repetski, 1996

Protoentactinia Kozur, Mostler & Repetski, 1996: 253 .

Paulanoblella Kozur & Repetski, 2002: 28 .

TYPE SPECIES. — Protoentactinia gracilispinosa Kozur, Mostler & Repetski, 1996 ( Kozur et al. 1996: 253, pl. pl. 3, fig. 1).

AGE AND LOCATION OF TYPE MATERIAL. — Lower Tremadocian, Windfall Formation, Antelope Range, Eureka County, Nevada, USA.

TAXON CODE. — 063.

STATUS. — Valid.

DIAGNOSIS. — “The rarely fully preserved subglobular test consists of a repeatedly branched entactinarian spicular system that forms a spongy network. The inner part of this network is very loose, the outer part is somewhat denser, but also loose. A small empty space may be present inside the test, but often this space also is filled by the spicular system. The spicular system consists basically of a median bar and 3, rarely 4, terminal rays. In the outer part of the test, both the median bar and the terminal rays are mostly shorter and only a little outward- directed. The ends of the branches are fused or interlocked there. In this part not only 3 or 4, but partly also 2, and rarely more than 4, terminal branches occur. Rarely, some isolated, but interlocked spicules also are present in the outer part. In general, all the branches of the spicular system have the same diameter. Only in the outer part they are somewhat slenderer, but in general, there is no distinct separation between an inner spicular system and an outer shell. Only in exceptional cases are the inner branches much thicker than the outer one.” ( Kozur et al. 1996: 253).