†subfamily Thaiaspidinae Osmolska 1970
Trilobita - Proetida - Phillipsiidae
Alternative spelling: Thaiaspinae
Parent taxon: Phillipsiidae according to T. Kobayashi and T. Hamada 1979
Sister taxa: Ameropiltonia, Archegoninae, Bollandiinae, Breviphillipsia, Cummingellinae, Cyrtosymbolinae, Cystispininae, Ditomopyginae, Exochops, Griffithidella, Griffithidinae, Hesslerides, Kollarcephalus, Linguaphillipsia, Linguaphillipsiinae, Lugalella, Malchi, Nunnaspis, Osmolskia, Paladin, Phillipsia, Piltonia, Rhenogriffides, Spergenaspis, Thigriffides, Weaniinae, Weberides
Subtaxa: Thaiaspis
Distribution:
• Carboniferous of Thailand (3 collections)
Total: 3 collections each including a single occurrence