Keretsa

{{Italic title}}

{{Taxobox

| name = Keretsa brutoni

| fossil_range = Ediacaran
~{{fossil range|555}}

| image =

| image_caption =

| regnum = Animalia

| unranked_superphylum = Bilateria

| phylum = incertae sedis (?Arthropoda) (?Proarticulata{{Cite journal|author=A.Yu. Ivantsov |year=2017 |title=The most probable Eumetazoa among late Precambrian macrofossils |journal=Invertebrate Zoology |volume=14 |issue=2 |page=132 |quote="The trunk axial part of Keretsa specimen is wrinkled, and we can not prove either an opposite or an alternate (as in the Proarticulata) arrangement of the half-segments." |doi=10.15298/invertzool.14.2.05 |doi-access=free }})

| genus = Keretsa

| species = K. brutoni

| binomial = Keretsa brutoni

| binomial_authority = Ivantsov, 2017{{Cite journal|author=A.Yu. Ivantsov |year=2017 |title=The most probable Eumetazoa among late Precambrian macrofossils |journal=Invertebrate Zoology |volume=14 |issue=2 |pages=127–133 |doi=10.15298/invertzool.14.2.05 |doi-access=free }}

}}

File:Keretsa brutoni.jpg, compared to individuals of ''Parvancorina]]

Keretsa brutoni is a fossil bilaterian from the Late Precambrian-aged Zimnie Gory Formation near Arkhangelsk Oblast, Russia, along the Winter coast of the White Sea. The first specimens were found in 2005. This rounded oblong-shaped organism resembles Naraoia, in having its body divided into an anteriorly positioned headshield, and a trunkshield. A pair of antennae-like structures emanate from underneath the base of the headshield, and there are numerous oblique grooves along the trunkshield that suggest legs.