Type species:Saturnalis brustolensis Squinabol (OD)
Description:Test as with family; having a variable number of spines on elongate, elliptical ring; spines tending to become longer on both ends of ring.
Family description (VITORFIDAE Pessagno, 1977c, p. 34): Test with latticed cortical shell directly attached medially to elliptical ring. Latticed cortical shell comprised of symmetrical polygonal pore frames. At least 1 latticed medullary shell present on well-preserved specimens.
Remarks:Vitorfus n. gen. differs from Saturnalis (1) by having two latticed shells: a cortical shell and a medullary shell, (2) by lacking polar spines and (3) by having the cortical shell fused directly to the outer ring.
Stratigraphic range:Albian to latest Campanian; ?Maestrichtian, Cretaceous, Mesozoic.
Etymology:Vitorfus is a name formed from an arbitrary combination of letters (ICZN, 1964, p.113, Appendix D, pt. Iv, Recommendation 40, p. 113).
Subsequent descriptions:YES

Description and dimensions:Sfera centrale a superficie scabra, fori minuti e quasi invisibili, forse anche per lo stato di conservazione come per la specie precedente, anello piatto, ellitico, con 6 spine esterne disposte tre a tre alle due estremità dell'asse maggiore. Di ogni gruppo quella mediana è assai più lunga delle altre due. Non vi sono spine sul prolungamento dell'asse minore. Le spine polari, quelle cioè che restano interne all'anello, non sono visibili per la loro cortezza, di modo che l'anello appare como in parte infossat nella sfera. [Central sphere with a rough surface, small pores almost invisible, maybe due to the preservation as in the preceding species, ring flat, ellipsoidal, with 6 external spines distributed by groups of three at both ends of the longest axis. In each group, the median spine is much longer than the other two. There are no spines at the ends of the short axis. The polar spines, those which are on the internal side of the ring, are not seen due to their short size, and the ring somewhat appears partially included into the sphere.] Diameter of the spherical shell 99µm, long axis 210µm, short axis 80µm, length of external spines 20-60µm.  Repository:[No information given] Type locality:Siliceous nodules from limestones, Euganei Mountains, near Teolo, Italy. Original stratigraphic range:Late Cretaceous. Mesozoic. Etymology:[No information given. Probably after the town of Brustolo] Subsequent descriptions:YES

Literature cited:- Pessagno, E. A. (1977c). Lower Cretaceous radiolarian biostratigraphy of the Great Valley Sequence and Franciscan Complex, California Coast Ranges. Cushman Foundation for Foraminiferal Research, Special Publication 15: 1-87.
- Squinabol, S. (1903b). Le Radiolarie dei noduli selciosi nella Scaglia degli Euganei. Contribuzione I. Rivista Italiana di Paleontologia 9: 105-151.