Gorispela victoria, Dumitrică, 2024

Dumitrică, Paulian, 2024, New Middle Triassic Bell-Shaped Nassellarian Radiolaria From Alpine And Carpathian Areas, Acta Palaeontologica Romaniae 20 (1), pp. 51-75 : 60

Gorispela victoria n. sp.

Fig. 4a

Diagnosis. Shell short conical with one circumferential ridge around the middle part of thorax. Initial spicule without dorsal ray. Apical and ventral rays prolonged outside into two equal, robust and straight horns situated practically symmetrical relative to the axis of shell and diverging from one another under an angle of 100°. Horns with proximal cylindrical portion short and hollow, and middle and distal portions three-bladed. Blades of apical horn bear a crown of small teeth, whereas the ventral horn bears only one tooth on the external blade. Both horns pyramidal beyond the level of the tooth. Cephalic cavity triangular in lateral view and poreless. Thorax truncate conical with about two circumferential rows of large pores on the distal end in an intercalary position. At its middle part there is a very well marked, thin and well-extending circumferential ring. Distal part of thorax below the circumferential ridge very short, inverted conical and with irregular distal border. It has large pores in the vicinity of the circumferential ridge and smaller ones and irregularly disposed on its distal part.

Studied material. A single specimen in the sample Rc4.

Holotype. Fig. 4a, coll. MGL.110275.

Dimensions. Length of shell without horns 72 µm, diameter of base of cephalis 40 µm, of circumferential ridge 87 µm.

Etymology. Due to the position of the two horns signifying victory, victoria – in Latin.

Remarks. Structurally, this species is close to Gorispela cornubovis n. sp., from which it differs especially by having straight horns and wide conical thorax with large pores.

Stratigraphic range. Buchenstein Formation, lower Ladinian.