Rhynchonellata - Spiriferida - Trigonotretidae

Full reference: R. V. Solomina. 1988. New Permian brachiopods from Verkhoyan. Paleontological Journal 22(1):39-50

Belongs to Neospirifer according to R. V. Solomina 1988

Sister taxa: Neospirifer (Neospirifer), Neospirifer amphigyus, Neospirifer amplus, Neospirifer apothescelus, Neospirifer arthurtonensis, Neospirifer bakeri, Neospirifer cameratiformis, Neospirifer cameratus, Neospirifer chivatschensis, Neospirifer concentricus, Neospirifer crassiconchialis, Neospirifer dunbari, Neospirifer fasciger, Neospirifer foordi, Neospirifer formulosus, Neospirifer goreii, Neospirifer gortani, Neospirifer grandis, Neospirifer groenwalli, Neospirifer huecoensis, Neospirifer incipiens, Neospirifer invisus, Neospirifer kansasensis, Neospirifer kimsari, Neospirifer koewbaidhoni, Neospirifer lanceolatus, Neospirifer latus, Neospirifer licharewi, Neospirifer mansuetus, Neospirifer mengjiushanensis, Neospirifer neali, Neospirifer neocameratus, Neospirifer neostriatus, Neospirifer notialis, Neospirifer omolonensis, Neospirifer orientalis, Neospirifer paranitiensis, Neospirifer parenensis, Neospirifer permicus, Neospirifer placidus, Neospirifer plana, Neospirifer praenuntius, Neospirifer pseudonitiensis, Neospirifer rhomboidalis, Neospirifer rhomboides, Neospirifer shenshuensis, Neospirifer snjatkovi, Neospirifer sodalis, Neospirifer sterlitamakensis, Neospirifer striatus, Neospirifer subfasciger, Neospirifer subovalis, Neospirifer sulcoprofundus, Neospirifer tajmyrica, Neospirifer tegulatus, Neospirifer texanus, Neospirifer tricostatus, Neospirifer trimuensis, Neospirifer triplicatus, Neospirifer undatus, Neospirifer vagaensis, Neospirifer venezuelensis, Neospirifer wynneiformis, Wadispirifer ravana, Wadispirifer hongdeensis

Type specimen: PIN 4218/115, a shell

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): valve 69.3 x 107.1