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Deep faunistic turnovers preceded the rise of dinosaurs in southwestern Pangaea
TLDR
A Middle–Late Triassic tetrapod assemblage from South America reveals a series of faunal turnovers prior to the rise of dinosaurs in the region.
A new hadrosauroid (Dinosauria: Ornithopoda) from the Allen Formation (Late Cretaceous) of Patagonia, Argentina
TLDR
A new hadrosauroid taxon from the Late Cretaceous Allen Formation is erected, on the basis of abundant cranial and postcranial material from the Salitral Moreno locality of the Rio Negro Province, Argentina, which is characterized by having an autapomor- phous premaxilla with a long and convex rostrolateral surface rostral to the narial fossa.
THE FIRST "PROTOSUCHIAN" (ARCHOSAURIA: CROCODYLIFORMES) FROM THE CRETACEOUS (SANTONIAN) OF GONDWANA 1
The remains of "protosuchians" from the Cretaceous come, to exception of "Las Hoyas crocodyliform" from the Lower Cretaceous of Spain, exclusively of Central Asia: Zaraasuchus, Gobiosuchus, Zosuchus,
A Large Accumulation of Avian Eggs from the Late Cretaceous of Patagonia (Argentina) Reveals a Novel Nesting Strategy in Mesozoic Birds
TLDR
This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods and may represent the product of a single nesting season or a short series of nesting attempts.
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations
TLDR
The temporally calibrated Ischigualasto biostratigraphy suggests the persistence of rhynchosaur-dominated faunas into the earliest Norian, and partially fills the ghost lineage between younger ornithischian records and the oldest known saurischians at ca.
WATER VAPOR CONDUCTANCE OF THE LOWER CRETACEOUS DINOSAURIAN EGGS FROM SANAGASTA, LA RIOJA, ARGENTINA: PALEOBIOLOGICAL AND PALEOECOLOGICAL IMPLICATIONS FOR SOUTH AMERICAN FAVEOLOOLITHID AND
ABSTRACT The water vapor conductance (GH2O) of the neosauropod eggs from the Lower Cretaceous Sanagasta nesting site in La Rioja Province, Argentina, was examined and compared with other Cretaceous
Mammals from the Salicas Formation (Late Miocene), la Rioja Province, Northwestern Argentina: Paleobiogeography, Age, and Paleoenvironment
Abstract. This study analyzes a collection of fossil mammals from the Salicas Formation in the El Degolladito area, La Rioja Province, Argentina. The materials reported herein were recovered from
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