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A large Cretaceous theropod from Patagonia, Argentina, and the evolution of carcharodontosaurids
It is suggested that carcharodontosaurid radiated in Gondwana sharing with spinosaurids the role of top-predators until their extinction in Cenomanian–Turonian times, and offers a better understanding of the evolution of Southern theropod faunas.
Lithofacies distribution of invertebrate and vertebrate trace-fossil assemblages in an Early Mesozoic ephemeral fluvio-lacustrine system from Argentina: Implications for the Scoyenia ichnofacies
Abstract This paper discusses the lithofacies distribution and ichnotaxonomic assignment of invertebrate, vertebrate and plant trace fossils in an Early Mesozoic ephemeral fluvio-lacustrine system
Application of neoichnological studies to behavioural and taphonomic interpretation of fossil bird-like tracks from lacustrine settings: The Late Triassic-Early Jurassic? Santo Domingo Formation,
Abstract The purpose of this study is to apply neoichnological observations to the behavioural and taphonomic interpretation of a Late Triassic–Early Jurassic track surface from the Santo Domingo
Ichnotaxonomic revision of Ameghinichnus , a mammalian ichnogenus from the Middle Jurassic La Matilde Formation, Santa Cruz province, Argentina
The ichnological assemblage from the Estancia Laguna Manantiales, from the Middle Jurassic La Matilde Formation, Santa Cruz province, Argentina, is exceptional both in diversity and abundance and different criteria used to distinguish mammalian imprints from non-mammalian tracks are commented.
This paper contains the first comprehensive ich- notaxonomic review of the Triassic tetrapod track record in Argentina, including previous accounts and new material recently discovered, and an
Revision of Dinosaur Ichnotaxa from the la Matilde Formation (Middle Jurassic), Santa Cruz Province, Argentina
Abstract An ichnological assemblage from the Middle Jurassic La Matilde Formation at Estancia Laguna Manantiales, Santa Cruz Province, Argentina, is exceptional both in diversity and abundance. It
Bird-like fossil footprints from the Late Triassic
Well-preserved and abundant footprints with clearly avian characters from a Late Triassic redbed sequence of Argentina are described, at least 55 Myr before the first known skeletal record of birds.
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica
Abstract Trace fossils are long known to exist in the Fossil Hill Formation (lower to middle Eocene) at Fildes Peninsula, King George Island, Antarctica. During fieldwork in 2009, abundant new avian
Vertebrate tracks from the Paso Córdoba fossiliferous site (Anacleto and Allen formations, Upper Cretaceous), Northern Patagonia, Argentina: Preservational, environmental and palaeobiological
Abstract The Paso Cordoba fossiliferous site (Rio Negro, Northern Patagonia) is one of the first Mesozoic fossiliferous localities studied in Argentina. There, turtle, crocodile and dinosaur remains
Large Theropod Dinosaur Footprint Associations in Western Gondwana: Behavioural and Palaeogeographic Implications
In modern terrestrial ecosystems, the population size of large predators is low, and a similar pattern has usually been assumed for dinosaurs. However, fossil finds of monospecific, large theropod