The Widmerpool Gulf is a name given to a sedimentary basin that existed as an area of open water during the Early Carboniferous (Tournaisian Age).
Aquilonites is found in the Tournaisian age Kugutyk Formation in Orenburg, Russian Federation 3, in what can be called the Dombarovskii ammonites, associated with species of Gattendoria, Goniocyclus, Muensteroceras, and Eocantites.