Almost everything widely reported about Amma and the elaborate Dogon cosmology comes from the French anthropologist Marcel Griaule and his collaborator Germaine Dieterlen, above all from Griaule's Dieu d'eau (1948), his record of conversations with the blind elder Ogotemmeli, and the later Le renard pale. Griaule described an extraordinarily intricate esoteric system, creation in stages, the primordial Nommo, the egg of the world, numbered pairs, a symbolism binding cosmology to granary, loom and field. That account made the Dogon internationally famous. It has also been seriously challenged.
The anthropologist Walter van Beek, after extended fieldwork among the Dogon (published in 1991), reported that he could not find the deep esoteric cosmology Griaule described, and argued that much of it may reflect the interpreter's leading questions, Ogotemmeli's own creativity, and the collaborative dynamic of the interviews. The scholarly consensus now treats the detailed Griaule system as contested rather than as a straightforward record of Dogon belief.