Radiolaria - Spumellaria - Angulobracchiidae

Alternative combination: Risella tledoensis

Full reference: E. Carter. 1993. Biochronology and paleontology of uppermost Triassic (Rhaetian) radiolarians, Queen Charlotte Islands, British Columbia, Canada. Memoires de Geologie 11:1-175

Belongs to Serilla according to E. S. Carter 2007

Sister taxa: Risella ellisensis, Risella stalkungiensis, Risella tangilensis

Type specimen: Its type locality is 87-CNA-KPA-17; 89-CNA-KPA-18 Kennecott Point, Graham Island, which is in a Rhaetian basinal (siliciclastic) limestone/siltstone in the Sandilands Formation of Canada

Ecology: passively mobile planktonic omnivore