†Polyphylloseris mammillata Eguchi 1951 (stony coral)
Anthozoa - Scleractinia - Microsolenidae
Full reference: M. Eguchi. 1951. Mesozoic hexacorals from Japan. The Science Reports of the Tohoku University, Geology 24:1-96
Belongs to Polyphylloseris according to Eguchi 1951
Sister taxa: Polyphylloseris conophora, Polyphylloseris convexa, Polyphylloseris distefanoi, Polyphylloseris icaunensis, Polyphylloseris iwateensis, Polyphylloseris microkothos, Polyphylloseris polymorpha, Polyphylloseris punctata
Type specimen: Its type locality is Matsushima, Omoto-mura, which is in an Aptian perireef or subreef sandstone in the Hiraiga Sandstone Formation of Japan
Ecology: stationary intermediate-level epifaunal photosymbiotic-suspension feeder