it has been made possible and indeed practically certain that the omphalos was a cone surmounting a grave. We have further had abundant evidence that cones did surmount graves.
Harrison argues that the omphalos — the navel-stone of Greek religion — was definitively a funerary cone, establishing the cone as a primary cultic object linking grave, fertility magic, and sacred geography.
, Themis: A Study of the Social Origins of Greek Religion, 1912thesis