Pseudoaspidoceras is an extinct genus of ammonites in the family Acanthoceratidae. These cephalopods lived during the Turonian stage of the Upper Cretaceous, between 93.5 ± 0.8 Ma and 89.3 ± 1 Ma (million years ago). Their shells reached a diameter of 90–120 mm and had ornate ribs. Distribution Fossils of Pseudoaspidoceras have been found in Brazil, Nigeria and Peru. References External links Jsdammonites GBIF Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopodes Ammonitida genera Acanthoceratidae Cretaceous ammonites Ammonites of Africa Cretaceous Africa Ammonites of South America Cretaceous Brazil Cretaceous Peru