[F] Allen Formation - Argentina
Argentina
The Allen Formation is also know as the Rio Colorado Formation
The Rio Colorado Fm. is the uppermost part of the Neuquen Group where the Rio Neuquen Fm. is the middle part. Bearing levels are composed of yellowish medium to gross sandstones, sometimes adopting a gray greenish color, poorly sorted. The sequence evidences a fluvial paleoenvironment.
Abelisaurus comahuensis - Provincia de Neuquen; Provincia de Rio Negro - Carnosauria Abelisauridae - Cretaceous Late Maastrichtian
Alvarezsaurus calvoi ~/~ - Provincia de Neuquen - Avialae Alvarezsauridae - Cretaceous Late Coniacian
Antarctosaurus wichmannianus - Provincia de Neuquen; Provincia de Rio Negro - Sauropoda Titanosauria - Cretaceous Late, Campanian Maastrichtian
Aucasaurus garridoi - Provincia de Neuquen - Theropoda Abelisauridae - Cretaceous Late Campanian
Austroraptor cabazai - Rio Negro Province - Maniraptora Unenlagiinae - Cretaceous Late Campanian Maastrichtian
Bonapartenykus ultimus - Avialae Alvarezsauridae - Cretaceous Late Campanian Maastrichtian
Bonatitan reigi - Provincia de Rio Negro - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Limenavis patagonica ~/~ - Provincia de Rio Negro - Ornithothoraces Ornithurae - Cretaceous Late Campanian Maastrichtian
Loricosaurus scutatus - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Microcoelus patagonicus - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Panamericansaurus schroederi - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Pellegrinisaurus powelli - Río Negro province - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Quilmesaurus curriei - Río Negro province - Saurischia Theropoda - Cretaceous Late Campanian Maastrichtian
Rocasaurus muniozi - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Saltasaurus australis (including Microcoelus patagonicus, Titanosaurus nanus, ?Loricosaurus scutatus) - Provincia de Neuquen; Provincia de Rio Negro - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Saltasaurus robustus - Provincia de Neuquen; Provincia de Rio Negro - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Titanosaurus nanus - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Titanosaurus robustus - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
Velocisaurus unicus - Provincia de Neuquen - Saurischia Theropoda - Cretaceous Late Coniacian
Willinakaqe salitralensis - Provincia de Rio Negro - Ornithopoda Hadrosauridae - Cretaceous Late Campanian Maastrichtian
Abelisaurid indet. - Provincia de Rio Negro - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
?Titanosaurus sp. - Provincia de Rio Negro - Theropoda Abelisauridae - Cretaceous Late Maastrichtian
cf. Macrorosaurus sp. - Provincia de Rio Negro - Theropoda indet. - Maastrichtian Cretaceous Late
Undescribed titanosaurid (= Laplatasaurus araukanicus: Powell, 1986 ) - Provincia de Rio Negro - Sauropoda Titanosauria - Maastrichtian Cretaceous Late
cf. Argyrosaurus sp. - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Campanian
Theropoda indet. (2 species) - Provincia de Neuquen - Theropoda - Cretaceous Late Campanian
Titanosaurid indet. - Provincia de Neuquen - Sauropoda Titanosauria - Cretaceous Late Campanian
Titanosaurus sp. - Provincia de Neuquen - Sauropoda Titanosauria - Campanian Cretaceous Late
Undescribed titanosaurid (Powell, 1986) - Provincia de Neuquen - Sauropoda Titanosauria - Campanian Cretaceous Late