In the third book of their trilogy (Le Sacré Fictif, 2017), Dianteill and Löwy have also shown the fertility of literary fiction to understand religion and the sacred.

Dianteill has done researches on Afro-American cultures (Cuba, United States, Brazil), on the evolution of autochthonous religions in West Africa (Benin) and on new Christian churches.

“ For Bertrand Hell, this is a ”major work“, which ”favors a singular method combining classical analysis of interviews, texts and figures with a personal religious investment“, while renewing ”the anthropological view of Afro-Cuban religions and, more broadly, of all systems of communication with the spirits ".

In addition, Dianteill is one of the few researchers to have studied the African-American spiritual churches of New Orleans, which integrate Catholic, Protestant elements and an underlying Vaudou influence.

The book L'oracle et le temple (2024) is, according to Jacob Olupona, "the latest work on Ifa scholarship and stands as important intervention in the anthropology of religion"[1].

In addition, Dianteill was the first scholar to study extensively the Epiphany festival of Porto-Novo (Benin), a unique popular celebration that a Catholic missionary (Francis Aupiais) and a Vodun dignitary (Zounon Medje) initiated in 1923.

Dianteill has carried out ethnographic and historical research in these colonial and port cities, all part of the Atlantic slave trade and creolization places for African and European civilizations.

Far from looking for the historical origins of Afro-American religions, Dianteill looks at the process of transculturation and creolization at work in colonial and post-colonial America as a heuristic model.

This method leads to a better understanding of the transformations of contemporary African religions, in urban, multi-ethnic environments characterized by great religious diversity.