Cretaceous terrestrial beds from the Neuquen Basin (Argentina) and their tetrapod assemblages

The Cretaceous terrestrial strata of the Neuquen Basin (northern Patagonia, Argentina) are described together with their tetrapod records. Six local tetrapod assemblages are identified: Amargan (Barremian-Early Aptian), Lohancuran (Late Aptian-Albian), Limayan (Cenomanian-Early Turonian), Neuquenian (Late Turonian-Coniacian), Coloradoan (Santonian-Early Campanian) and Allenian [Late Campanian-Early Maastrichtian (= Alamitense = Alamitian SALMA)]. The last of these includes records from north-eastern Patagonia. (C) 2004 Elsevier Ltd. All rights reserved.