[3][2] Oxomoco and Cipactonal are mentioned in the Aztec Annals of Cuautitlán; they were in charge of the calendar.
[5] Some scholars, such as the Nicaraguan Fernández de Oviedo y Valdés claim that Cipactonal was actually the female and Oxomoco actually the male and referred to one of them as Tamagastad.
[5] Nahuatl terms of the four shamans who stayed at Tamoanchan are not gendered with the exception of Oxomoco who was female.
[6] In the Codex Borbonicus, Oxomoc, like Cipactonal, usually wears the tobacco gourd of priests on her back.
[7] In some depictions the goddess is wearing a butterfly mask and throwing maize and beans from a vessel.