Emuelloidea

{{Short description|Extinct superfamily of trilobites}}

{{Automatic Taxobox

| fossil_range = {{fossilrange|517}} late Botomian

| image = BalcoracaniaDailyi.png

| image_caption = Balcoracania dailyi  of the family Emuellidae
Lower Cambrian Emu Shale
Kangaroo Island, South Australia
© Dave Simpson

| taxon = Emuelloidea

| authority = Pocock, 1970

| subdivision_ranks = Families

| subdivision =

• Emuellidae
• Megapharanaspididae

}}

Emuelloidae are a small superfamily of trilobites, a group of extinct marine arthropods, that lived during the late Lower Cambrian (late Botomian) of the East Gondwana supercontinent, in what are today South-Australia and Antarctica. Emuelloidea can be recognized by having a prothorax consisting of 3 or 6 segments, the most backward one of which is carrying very large trailing spines. Behind it is the so-called opistothorax. There are two families, the Emuellidae (with a prothorax of six segments) and the Megapharanaspididae (with a prothorax of three segments).{{cite journal|last1= Paterson|first1= R.J.|last2= Jago|first2=J.B.|year= 2006|title= New trilobites from the Lower Cambrian Emu Bay Shale Lagerstätte at Big Gully, Kangaroo Island, South Australia.|journal= Memoirs of the Association of Australasian Palaeontologists|volume= 32|pages= 43–57|hdl= 1959.14/10651|issn= 0810-8889}}