Comments on the morphology of basal paravian shoulder girdle: New data based on unenlagiid Theropods and Paleognath birds [PDF]
, 2021 In 1976 John Ostrom published an enlightening paper about the anatomical transformations in the shoulder girdle and forelimb elements along the origin of birds.
Agnolin, Federico +5 more
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Potential for Powered Flight Neared by Most Close Avialan Relatives, but Few Crossed Its Thresholds [PDF]
, 2020 Uncertainties in the phylogeny of birds (Avialae) and their closest relatives have impeded deeper understanding of early theropod flight. To help address this, we produced an updated evolutionary hypothesis through an automated analysis of the Theropod ...
Brusatte, Stephen L. +9 more
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Anatomía comparada de los terópodos paravianos Unenlagiidae y sus implicancias en el origen de las aves [PDF]
, 2023 Paraves es el clado de dinosaurios que cuenta con mayor número de especies, ya que por un lado agrupa a terópodos no-avianos extintos como Troodon y Velociraptor, y por otro lado a las aves, únicos dinosaurios vivientes (Avialae: Dinosauria, Gauthier ...
Motta, Matías Javier
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Synchrotron imaging of dentition provides insights into the biology of and , the “last” toothed birds [PDF]
BACKGROUND: The dentitions of extinct organisms can provide pivotal information regarding their phylogenetic position, as well as paleobiology, diet, development, and growth. Extant birds are edentulous (toothless), but their closest relatives among stem
Bertin, T +9 more
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A new taxa for dipteridaceae fronds from the paso flores formation, late triassic, Neuquén basin, Argentina [PDF]
, 2020 Steril and fertil fronds of dipteridacean ferns from the Paso Flores Formation (Norian) at Cañadón de Pancho area (Neuquén Basin, Argentina) are described.
Gnaedinger, Silvia Cristina +1 more
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Dientes de Abelisauridae y Carcharodontosauridae cf. (Theropoda, Dinosauria) del Campaniano-Maastrichtiano Formación Presidente Prudente (Suroeste Provincia de São Paulo, Brasil) [PDF]
, 2013 Isolated theropod teeth referable to Abelisauridae indet., and Carcharodontosauridae cf., from the Campanian-Maastrichtian Presidente Prudente Formation of the western São Paulo State, Brazil, are described.
Bergqvist, L. P. +2 more
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A Bacia Bauru no Estado de São Paulo e seus tetrápodes [PDF]
, 2022 The Bauru Basin bears one of the best sampled tetrapod paleofaunas of Brazil, with about 70% of this diversity collected from its deposits in São Paulo. Its fossils are known since the beginning of the 20th century, coming from all stratigraphic units of
Barcelos, Lucas A. +12 more
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A New Coelurosaurian Theropod from the La Buitrera Fossil Locality of Río Negro, Argentina [PDF]
, 2012 A new coelurosaurian theropod, Alnashetri cerropoliciensis, is reported here based on articulated hind limbs of a single individual discovered at the locality of La Buitrera (Candeleros Formation, Cenomanian–Turonian), Río Negro Province, Argentina.
Apesteguía, Sebastián +2 more
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, 2020 Los dinosaurios se caracterizan por ser un grupo amplio, con una gran diversidad y una notable distribución a nivel mundial, representando el grupo de vertebrados terrestres predominantes de los ecosistemas Mesozoicos.
Meso, Jorge Gustavo
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Dromaeosaurid tracks from the Upper Cretaceous Candeleros Formation of northwestern Patagonia provide additional data on the palaeobiology and palaeoecology of "raptor" dinosaurs [PDF]
This contribution documents several strongly asymmetrical and functionally didactyl tracks from the Cenomanian Candeleros Formation of northwestern Patagonia, Argentina.
Baiano, Mattia A. +8 more
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