2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/165613We show how one can associate to a given class of finite type G-structures a classifying Lie algebroid. The corresponding Lie groupoid gives models for the different geometries that one can find in the class, and encodes also the different types of symmetry groups.16 pages; research announcement; final version to appear in Sao Paulo Journal of Mathematical SciencesDifferential Geometry53C10 (Primary) 53A55, 58D27, 58H05 (Secondary)text