Radiolaria - Spumellaria - Xiphostylidae

Full reference: E. Pessagno, W. M. Six, and Q. Yang. 1989. The Xiphostylidae Haeckel and Parvivaccidae, n. fam, (Radiolaria) from the North American Jurassic. Micropaleontology 35(3):193-255

Belongs to Xiphostylus according to Pessagno and Yang 1989

Sister taxa: Xiphostylus communis, Xiphostylus duvalensis, Xiphostylus fragilis, Xiphostylus gasquetensis, Xiphostylus logdellensis, Xiphostylus simplus, Xiphostylus whalenae

Type specimen: USNM 424174

Ecology: passively mobile planktonic omnivore