Glossaster, LAMBERT, 1918

Souto, Camilla, Mooi, Rich, Martins, Luciana, Menegola, Carla & Marshall, Charles R., 2019, Homoplasy and extinction: the phylogeny of cassidulid echinoids (Echinodermata), Zoological Journal of the Linnean Society 187, pp. 622-660 : 652

GENUS GLOSSASTER LAMBERT, 1918

Emended diagnosis: Medium-sized eurhodiids with straight-edged, elongate test; oral region concave. Petals bowed; inner column of petal III straight. Poriferous zone wide, with sparse primary tubercles. Periproct on aboral surface, tear-shaped, longitudinal. About seven or eight interambulacral plates between basicoronal plate 5 and base of periproct. Naked zone fully pitted. Peristome longitudinal, pentagonal, placed near anterior edge of test. Bourrelets pointed; bourrelet 5 reduced. Phyllodes with about eight to 12 phyllopores per half; occluded plates present, may be scattered or forming inner column.