In the beginning there are only air and water. 1) Person descends from the sky, creates the dry land or a hard support created for her or him grows into the earth. 2) The earth is sent or dropped from the sky, put on the surface of the water. 3) The earth is brought from somewhere (not from the underworld) and put on the water
People do not become young (usually do not shed their skin) anymore because certain person was bothered during rejuvenation or was not recognized by his family in his new guise
Reptiles or invertebrates possess the medicine of immortality; are contrasted with men as immortal with mortals and/or are responsible for originating of death; or a snake's bite inflicts the first death
A girl (or two sisters) travel, usually in search of a proper marriage partner who lives far away or who has gone away. On her way or after reaching the place of destination the girl gets to some unpleasant suitors
Mother dies or is killed. Her (still unborn) baby-son is buried with her. He comes out of the grace, meets people, then returns to the grave but ultimately agrees to remain with the people
An ugly, old, lazy, etc. woman or (in Chaco) a male trickster comes to man under disguise of his wife or bride who is driven out, confined to the underworld, killed, etc.
First one, then another man meets a powerful person or persons. The first man is worthy and rewarded with treasure, prestige or the like. The second man (or two men) follows him, behaves in a wrong way and is punished
The youngest daughter is willing (The loathsome bridegroom)
A girl (usually the youngest of several sisters) does not reject but marries a poor, sick, dirty, old, too young, non-human, etc. man who later demonstrates his supernatural qualities
A boy born into a family or found by his adoptive parents has a strange guise (ball of meat, nut, bag, half of a man, an animal). He possesses magic power, becomes a handsome man and usually marries a girl of high social status. The magic spouse of a princess originally has a non-human or monstrous appearance
A monstrous being is killed or neutralized by (burning hot) stones (pieces of metal, heavy fruits, etc.) thrown into its maw or anus or the being retreats when they menace to throw a stone into its maw