- KOZURASTRUMDe Wever, 1984a

Remarks:De Wever (1984a) established for typical Praemesosaturnalis species the genus Kozurastrum De Wever, 1984a. He stated that this genus differs from Mesosaturnalis Kozur and Mostler, 1981 by the presence of auxiliary spines. This is exactly the difference between Mesosaturnalis Kozur and Mostler, 1981 and Praemesosaturnalis Kozur and Mostler, 1981 as pointed out by Kozur and Mostler (1981, 1983). Therefore the Kozurastrum species, with exception of the type species, belong to Praemesosaturnalis Kozur and Mostler, 1981. The type species of Kozurastrum De Wever, 1984a, Spongosasaturnalis ? minoensis Yao, 1982a, is, however, a typical representative of the early Acanthocircinae. It displays tricarinate peripheral spines and strong connecting ridges on the upper and lower surface of the outer part of the ring, nearly as broad as half of the ring's width. For this species Kozur and Mostler, 1983 introduced the genus Yaosaturnalis Kozur and Mostler, 1983. Because the type species of Yaosaturnalis Kozur and Mostler, 1983 and of Kozurastrum De Wever, 1984a are identical, the latter genus is a younger synonym of Yaosaturnalis Kozur and Mostler, 1983, in spite of the fact that almost all species of Kozurastrum belong to Praemesosaturnalis Kozur and Mostler, 1981.
Subsequent descriptions:?

Literature cited:- De Wever, P. (1984a). Révision des radiolaires mésozoiques de type Saturnalidae, proposition d'une nouvelle classification (Revision of Mesozoic saturnalid-type radiolarians. Proposition of a new classification). Revue de Micropaléontologie 27(1): 10-19.
- Kozur, H. and H. Mostler (1981). Beiträge zur Erforschung der mesozoischen Radiolarien. Teil IV: Thalassosphaeracea Haeckel, 1862, Hexastylacea Haeckel, 1862 emend. Petrushevskaya, 1979, Sponguracea Haeckel, 1862 emend. und weitere triassische Lithocycliacea, Trematodiscacea, Actinommacea und Nassellaria. Geologisch - Paläontlogische Mitteilungen Innsbruck 1: 1-208.
- Kozur, H. and H. Mostler (1983). The polyphyletic origin and the classification of the Mesozoic saturnalids (Radiolaria). Geologisch - Paläontologische Mitteilungen Innsbruck 13(1): 1-47.
- Kozur, H. and H. Mostler (1990). Saturnaliacea Deflandre and some other stratigraphically important Radiolaria from the Hettangian of Lenggries/Isar (Bavaria, Northern Calcareous Alps). Geologisch - PaläŠontologische Mitteilungen Innsbrück 17: 179-248.
- Yao, A. (1982a). Middle Triassic to Early Jurassic radiolarians from the Inuyama area, central Japan. Journal of Geosciences, Osaka City University 25: 53-70.