Radiolaria - Entactinaria - Hindeosphaeridae

Full reference: K. Y. Yeh. 1989. Studies of Radiolaria from the Fields Creek Formation, east-central Oregon, USA. Bulletin of the National Museum of Natural Science 1:43-109

Belongs to Pseudostylosphaera according to Yeh 1989

Sister taxa: Pseudostylosphaera coccostyla, Pseudostylosphaera compacta, Pseudostylosphaera goestlingensis, Pseudostylosphaera gracilis, Pseudostylosphaera japonica, Pseudostylosphaera kozuri, Pseudostylosphaera longispinosa, Pseudostylosphaera multispinata, Pseudostylosphaera nazarovi, Pseudostylosphaera oblonga, Pseudostylosphaera procera, Pseudostylosphaera tenuis

Type specimen: Its type locality is Fields Creek, OR123C, which is in a Ladinian basinal (siliceous) chert in the Fields Creek Formation of Oregon

Ecology: passively mobile planktonic omnivore