Rhynchonellata - Orthida - Lycophoriidae
Parent taxon: Orthoidea according to A. Williams et al. 2000
See also Alikhova 1953
Sister taxa: Anomalorthidae, Archaeorthidae, Bajanorthis, Bohemiellidae, Cathaysiorthidae, Glyptorthidae, Hesperonomiidae, Hesperorthidae, Malinella, Nugnecella, Orthidae, Orthidiellidae, Ottadalenites, Plaesiomyidae, Poramborthidae, Productorthidae, Skenidioidae, Tarfayidae, Turarella, Whittardiidae, Zhejiangorthis, Dolerorthidae, Dinorthidae
Subtaxa: Lycophoria
Ecology: stationary epifaunal suspension feeder
Distribution:
• Aluoja of Estonia (8 collections)
• Volkhov of the Russian Federation (1)
• Valaste of Estonia (14), the Russian Federation (2)
• Langevoja of Estonia (2), the Russian Federation (1)
• Hunderum of Estonia (8), Sweden (1)
• Arenig of Sweden (5)
• Ordovician of Estonia (12), the Russian Federation (37), Sweden (8)
Total: 99 collections each including a single occurrence