Thaiaspis

{{Short description|Genus of proetid trilobite belonging to the family Phillipsiidae}}

{{Taxobox

| fossil_range = Middle to Late Mississippian

| image = Thaiaspis sethaputi.jpg

| image_caption = Thaiaspis sethaputi

| regnum = Animalia

| phylum = Arthropoda

| classis = Trilobita

| ordo = Proetida

| familia = Phillipsiidae

| genus =Thaiaspis

| genus_authority = Kobayashi, 1961

| type_species = Thaiaspis sethaputi

| type_species_authority = Koizumi, 1972H. Koizumi. 1972. New genera of trilobite family Phillipsidae from the Takakura-yama Group (Permian), Abukuma Massif in Japan. Earth Science (Chikyu Kagaku) 26:19-25

}}

Thaiaspis is a genus of proetid trilobite belonging to the family Phillipsiidae. Fossils of the various species are found in Middle to Late Mississippian-aged marine strata of eastern Asia, especially of Carboniferous-aged marine strata in Thailand.