The Río Colorado Subgroup, formerly named as Río Colorado Formation, is a Late Cretaceous geologic subgroup of the Neuquén Basin in northern Patagonia, Argentina. It belongs to the Neuquén Group and contains the Anacleto and Bajo de la Carpa Formations. The subgroup overlies the Río Neuquén Subgroup and is overlain by the Allen Formation of the Malargüe Group, separated by an unconformity dated to 79 Ma. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
The Artoles Formation is a geological formation in Teruel and La Rioja, Spain whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
The Rayoso Formation is a geological formation in the Neuquén Province of Argentina whose strata date back to the Aptian-Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
The Cerro Barcino Formation is a geological formation in South America whose strata span the Early Cretaceous to the earliest Late Cretaceous. The top age for the formation has been estimated to be Cenomanian. Earlier estimates placed the formation until the Campanian.
The La Colonia Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
The Río Limay Subgroup is a geological unit of the Neuquén Group in the Neuquén Basin of Neuquén, Mendoza and Río Negro Provinces, northern Patagonia, Argentina. The strata date back to the Late Cretaceous (Early Cenomanian to Early Turonian. The Río Limay Subgroup overlies the Lohan Cura Formation, separated by an unconformity dated to 98 Ma. Dinosaur remains are among the fossils that have been recovered from the formations it contains.
The Río Neuquén Subgroup is a geological subgroup in the Neuquén Basin, Neuquén Province, Argentina, whose strata date back to the Late Cretaceous. The subgroup, formerly defined as a formation, is the middle unit of the Neuquén Group and contains the Plottier, Sierra Barrosa Formation, Los Bastos Formation, and Portezuelo Formations. The subgroup overlies the Río Limay Subgroup and is overlain by the Río Colorado Subgroup. Dinosaur remains are among the fossils that have been recovered from the formation.
The Lecho Formation is a geological formation in the Salta Basin of the provinces Jujuy and Salta of northwestern Argentina. Its strata date back to the Early Maastrichtian, and is a unit of the Salta Group. The fine-grained bioturbated sandstones of the formation were deposited in a fluvial to lacustrine coastal plain environment.
The Allen Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous (middle Campanian to early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation. Indeterminate chelid remains and other vertebrates have also been discovered in this formation.
The Chota Formation is an Early Campanian to Late Eocene geologic formation of the Cajamarca and western Amazonas Region in northern Peru. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus ("Baguasaurus"). The formation was formerly named Bagua Formation.
The Guichón Formation is a Late Cretaceous geologic formation of the Paysandú Group in Uruguay. Dinosaur remains are among the fossils that have been recovered from the formation.
The Valle de Ángeles Redbeds (Kva) is a Late Albian to Early Cenomanian geologic formation of the in western Honduras. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.
The Yacoraite Formation is a largely Mesozoic geologic formation. The deposits of this formation mainly date from the Maastrichtian of the Upper Cretaceous, but the Cretaceous–Paleogene boundary runs right through this formation near its top, and the uppermost parts are consequently from the Danian. It was probably deposited around the intertidal zone, as the sedimentary rocks of this formation alternate according to sea level changes between deposits of muddy beaches and of shallow ocean.
The Angostura Colorada Formation is a Campanian to Maastrichtian geologic formation of the Neuquén Basin and North Patagonian Massif in the Río Negro Province of Argentina. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
The Cardiel Formation is a Maastrichtian geologic formation of the Austral Basin in Santa Cruz Province, Argentina. The formation comprises sandstones and conglomerates with abundant tuff beds. The formation is overlain by the Slogget and San Julián Formations and overlies the Divisadero and Kachaike Formations. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
The Cerro Castillo Formation is a Jurassic geologic formation in Argentina. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
The Laguna Palacios Formation is a Maastrichtian geologic formation of the Chubut Group in the Golfo San Jorge Basin in Patagonia, Argentina. The formation partly overlies and partly is laterally equivalent to the Lago Colhué Huapí Formation and is overlain by the Salamanca Formation of the Río Chico Group. The formation comprises tuff reworked by fluvial activity and paleosols. The Laguna Palacios Formation has provided fossilized bee nests. Dinosaur remains, such as Notoceratops, diagnostic to the genus level are among the fossils that have been recovered from the formation.
The Puerto Yeruá Formation is a Late Cretaceous geologic formation in the Paraná Basin, pertaining to Entre Ríos Province, Argentina. Dinosaur remains are among the fossils that have been recovered from the formation, as well as egg fragments and fossilized wood.
The El Jume Formation is an Early Cretaceous geologic formation in Argentina. Indeterminate fossil dinosaur tracks have been reported from the formation. The formation, belonging to the El Gigante Group, overlies the Los Riscos Formation and is overlain by the El Toscal Formation. The sandstones and claystones of the formation were deposited in a fluvial environment. Part of the formation was assigned to a new formation, Balde de Leyes Formation in 2015.
The Lossiemouth Sandstone is a Middle to Late Triassic age geological formation. It is exposed on the south side of the Moray Firth near Lossiemouth and near Golspie in Sutherland. Dinosaur remains are among the fossils that have been recovered from the formation.
