in Delany's discussion of the synchronic and the diachronic ("with greater and greater concentration on the synchronic") he bundles a large assortment of intellectual work into this framework, including
--the kinship work of Levi-Strauss just after World War II
--the Annales school of historians with their histories of everyday life: Braudel, but also Aries, Ladurie, Veyne
--Foucault's three early "Archaeologies" (Madness and Civilization, 1961; Birth of the Clinic, 1963; The Order of Things, 1967)
I'm not sure whether he treats these as "synchronic" specifically, or just as representative of the organization of information around a "synchronic / diachronic" axis