Triactoma aff. rosespitensis (Carter, 1988)

Cifer, Tim, Goričan, Špela, Gawlick, Hans-Jürgen & Auer, Matthias, 2020, Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria, Acta Palaeontologica Polonica 65 (1), pp. 167-207 : 176

Triactoma aff. rosespitensis (Carter in Carter et al., 1988)

Fig. 8Y.

Material.— Sample Rö37: stub Rö37_3 (two specimens), Mount Rettenstein , Northern Calcareous Alps, Austria, Lower Pliensbachian .

Remarks.— Triactoma aff. rosespitensis differs from typical Triactoma rosespitensis (Carter in Carter et al. 1988: 27, pl. 10: 1; Goričan et al. 2006: 384, pl. TCA01: 1–4; O’Dogherty and Gawlick 2008: 75, pl. 1:22) by the spines being shorter and more pyramidal. Triactoma aff. rosespitensis is identical to the specimen of Gawlick et al. (2001: fig. 2: 7). Triactoma rosespitensis is known from the Lower Pliensbachian to the Middle–Upper Toarcian ( Carter et al. 2010) in Haida Gwaii (British Columbia, Canada), Oregon ( USA), Baja California Sur, Northern Calcareous Alps ( Austria), Philippines, and Japan.