Protozoa - Spumellaria - Pantanelliidae
Named by S. Gorican & A. Matsuoka.
Original description: Cortical shell subspherical with relatively small hexagonal and pentagonal pore frames. Five to six pore frames visible along AA(prime). Median band bears several (more than four, usually seven) long massive triradiate secondary spines, pyramidal in shape. Polar spines long and robust, approximately equal in length; width constant through most of the length, then decreasing more rapidly towards spine tips. Polar spines triradiate with three rounded ridges alternating with three deep grooves.
Original remarks: Zartus stellatus n. sp. differs from all other Zartus species by having larger polar spines and numerous long secondary spines on median band.
Etymology: Stellatus-a-um (Latin, adj.) - stellate, arranged like a star, radiating.
Full reference: S. Gorican, E. S. Carter, P. Dumitrica, P. A. Whalen, R. S. Hori, P. De Wever, L. O'Dogherty, A. Matsuoka, and J. Guex. 2006. Catalogue and systematics of Pliensbachian, Toarcian and Aalenian radiolarian genera and species 446
Belongs to Zartus according to S. Gorican et al. 2006
Sister taxa: Zartus jurassicus, Zartus thayeri
Type specimen: MA 11322
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Japan (2 collections), Slovenia (1)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.