Strophomenata - Strophomenida - Rafinesquinidae
Parent taxon: Leptaena according to M. Rubel 2011
Sister taxa: Leptaena (Ygdrasilomena), Leptaena acuticuspidata, Leptaena aequalis, Leptaena alliku, Leptaena amelia, Leptaena analogaeformis, Leptaena arberae, Leptaena argentina, Leptaena borghiana, Leptaena boyaca, Leptaena contermina, Leptaena convexa, Leptaena cooperi, Leptaena croma, Leptaena crypta, Leptaena cryptoides, Leptaena dejecta, Leptaena delicata, Leptaena electra, Leptaena ennessbe, Leptaena gibbosa, Leptaena holcrofti, Leptaena indigena, Leptaena kentuckiana, Leptaena lappa, Leptaena lappina, Leptaena lemniscata, Leptaena limbifera, Leptaena moniquensis, Leptaena nanaformis, Leptaena nassichuki, Leptaena odeon, Leptaena oklahomensis, Leptaena orhor, Leptaena parvirugata, Leptaena parvissima, Leptaena paucirugata, Leptaena poulseni, Leptaena praequalis, Leptaena provellerosa, Leptaena purpurea, Leptaena quadrata, Leptaena rara, Leptaena rhomboidalis, Leptaena richmondensis, Leptaena rugaurita, Leptaena rugosa, Leptaena salopiensis, Leptaena semiradiata, Leptaena sperion, Leptaena tenuissimestriata, Leptaena valida, Leptaena veldrensis, Leptaena vellerosa, Leptaena ventricosa, Leptaena ventricosa, Leptaena zeta, Leptaena ziegleri, Similoleptaena ingrica, Similoleptaena undosa, Similoleptaena crassorugata, Similoleptaena planitia, Similoleptaena friedrichi, Similoleptaena tarwanpensis, Similoleptaena pertenuis, Leptaenopoma trifidium, Orhoria lappa, Orhoria lappina, Kurnamena laterorugata, Kurnamena spumifera, Kurnamena rugosoides, Kurnamena taxilla, Kurnamena acuta, Kurnamena palmrei
Subtaxa: Leptaena (Leptaena) altera Leptaena (Leptaena) bergstroemi Leptaena (Leptaena) depressa Leptaena (Leptaena) diademata Leptaena (Leptaena) enucleata Leptaena (Leptaena) haverfordensis Leptaena (Leptaena) infrunita Leptaena (Leptaena) ordovicica Leptaena (Leptaena) purpurea Leptaena (Leptaena) rhomboidalis Leptaena (Leptaena) rugosoides Leptaena (Leptaena) salopiensis Leptaena (Leptaena) semiovalis Leptaena (Leptaena) strandi Leptaena (Leptaena) tenuistrata Leptaena (Leptaena) tenuistriata Leptaena (Leptaena) trifidum Leptaena (Leptaena) valentia Leptaena (Leptaena) ventricosa
Type: Leptaena rugosa
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Ukraine (1 collection)
• Whitwellian of Canada (3: Northwest Territories)
• Jaani of Estonia (18), Lithuania (4)
• Silurian of Belarus (2), Canada (10: Northwest Territories, Nova Scotia), the Czech Republic (2), Estonia (27), Ireland (1), Kazakhstan (1), Latvia (3), Lithuania (9), Mongolia (2), Norway (21), the Russian Federation (2), Spain (1), Sweden (17), the United Kingdom (71), United States (6: California, Wisconsin), Venezuela (1)
• Ordovician to Silurian of the Russian Federation (1)
• Ordovician of China (8), the Czech Republic (2), Estonia (9), Latvia (4), Lithuania (3), Norway (10), Sweden (11), the United Kingdom (20), United States (6: Alaska, Nevada, New York, Pennsylvania, Virginia)
Total: 276 collections including 288 occurrences