Retaria

{{Short description|Phylum of single-celled organisms}}

{{Automatic taxobox

| image = Ammonia tepida.jpg

| image_alt = Live "Ammonia tepida"

| image_caption = Live Ammonia tepida

| taxon = Retaria

| authority = Cavalier-Smith, 1999

| display_parents = 4

| synonyms =

| synonyms_ref =

| subdivision_ranks = Subphyla

| subdivision =

• Foraminifera
• Radiolaria

}}

Retaria is a clade within the supergroup Rhizaria containing the Foraminifera and the Radiolaria.{{cite journal |vauthors=Moreira D, von der Heyden S, Bass D, López-García P, Chao E, Cavalier-Smith T |title=Global eukaryote phylogeny: Combined small- and large-subunit ribosomal DNA trees support monophyly of Rhizaria, Retaria and Excavata |journal=Mol. Phylogenet. Evol. |volume=44 |issue=1 |pages=255–66 |date=July 2007 |pmid=17174576 |doi=10.1016/j.ympev.2006.11.001 }} In 2019, the Retaria were recognized as a basal Rhizaria group, as sister of the Cercozoa.{{Cite journal|date=2019-01-01|title=Phylogenomics supports the monophyly of the Cercozoa |journal=Molecular Phylogenetics and Evolution |volume=130|pages=416–423 |doi=10.1016/j.ympev.2018.09.004 |pmid=30318266 |issn=1055-7903|last1=Irwin |first1=Nicholas A.T.|last2=Tikhonenkov|first2=Denis V.|last3=Hehenberger |first3=Elisabeth |last4=Mylnikov |first4=Alexander P.|last5=Burki|first5=Fabien|last6=Keeling|first6=Patrick J.}}

{{clade

|label1=SAR Supergroup

|1={{clade|style=font-size:100%;line-height:80%

|label1=Rhizaria

|1={{clade

|label2=Retaria

|2={{clade

|1={{clade

|2=Polycystinea 50px

|1=Foraminifera 50px

}}

|2={{clade

|1=Acantharea 50px

|2=Sticholonchea 50px

}}

}}

|1=Cercozoa 50px

}}

|label2=Halvaria

|2={{clade

|1=Stramenopiles 50px

|2=Alveolata 90px

}}

}}

}}