Papillocyathus ROZANOV in ZHURAVLEVA, KONYUSHKOV & ROZANOV,1964
Specimen-type:
Papillocyathus vacuus holotype, ZHURAVLEVA, KONYUSHKOV &
ROZANOV, 1964, pl. 10, fig. 1-2
Systematics:
Order:
AJACICYATHIDA R. Bedford& J. Bedford, 1939
Suborder: DOKIDOCYATHINA
Vologdin, 1957
Superfamily: PAPILLOCYATHOIDEA Rozanov, 1989
Family:
PAPILLOCYATHIDAE Rozanov, 1989