Radiolaria - Spumellaria - Hagiastridae

Full reference: K. Yeh. 2009. A Middle Jurassic radiolarian fauna from South Fork Member of Snowshoe Formation, east-central Oregon. Collection and Research 22:15-125

Belongs to Higumastra according to K. Yeh 2009

Sister taxa: Higumastra angustabraccia, Higumastra devilsgapensis, Higumastra exigua, Higumastra hui, Higumastra imbricata, Higumastra inflata, Higumastra laxa, Higumastra lupheri, Higumastra scassoi, Higumastra transversa

Type specimen: Its type locality is OR-MA30 Seneca, which is in a Bathonian deep-water lime mudstone in the Snowshoe Formation of Oregon

Ecology: passively mobile planktonic omnivore