†Sideroseris Wells 1945 (stony coral)
Anthozoa - Scleractinia - Siderastreidae
Synonym: Rhabdophylliopsis Alloiteau and Tissier 1958
Parent taxon: Siderastreidae according to J. J. Sepkoski 2002
Sister taxa: Anomastraea, Coscinaraea, Hindeastraea, Horastrea, Maeandroseris, Pironastrea, Psammocora, Pseudosiderastrea, Siderastrea, Siderastreites, Siderofungia, Siderosmilia, Stephanomorpha, Synhelia
Subtaxa: Sideroseris durhami
Type: Sideroseris durhami
Ecology: stationary intermediate-level epifaunal photosymbiotic-suspension feeder