research took me on a long trip this morning, lead me to these. the shapes at the sites are similar. from
this wiki link

Quote:
Ogee Motif Ogee Motif The Ogee Motif symbolized portals in to the Underworld. It appears frequently on Under World Deities. It may symbolize caves, may be derived from representations of the female genitalia or an human eye motif.
|

Quote:
Trilobed Motif Trilobed Motif The Tri-lobed Motif functioned as a serpent marking and may have symbolized a supernaturals ability to travel from the Lower World to the Upper World.
|