Lingulata - Acrotretida - Acrotretidae
Parent taxon: Acrotretidae according to I. Puura and L. E. Holmer 1993
See also Brock and Cooper 1993, Holmer 1989 and Wright 1963
Sister taxa: Acrotreta, Amictocracens, Anabolotreta, Anelotreta, Angulotreta, Aphelotreta, Apsotreta, Araktina, Biernatinae, Brachaktassia, Canthylotreta, Conotreta, Cyrtonotreta, Dactylotreta, Dicondylotreta, Ditreta, Eohadrotreta, Eurytreta, Fascicoma, Galinella, Genetreta, Hisingerella, Homotreta, Iberotreta, Kostjubella, Kotylotreta, Kuangshanotreta, Lensotreta, Linnarssonella, Linnarssonia, Linnarssoniinae, Longipegma, Mixotreta, Neotreta, Odontotreta, Olentotreta, Ombergia, Opisthotreta, Ottenbyella, Physotreta, Picnotreta, Prototreta, Quadrisonia, Rhondellina, Satpakella, Scaphelasmatinae, Semitreta, Spondylotreta, Stilpnotreta, Tapuritreta, Tasbulakia, Tingitanella, Torynelasmatinae, Treptotreta, Vandalotreta
Subtaxa: Talasotreta
Ecology: stationary epifaunal suspension feeder
Distribution:
• Uhaku of Sweden (4 collections)
• Chazyan of United States (2: Alabama, Tennessee)
• Ordovician of Kazakhstan (2), Sweden (3)
Total: 11 collections each including a single occurrence