Results 1 to 10 of about 50 (38)

Differential locomotor and predatory strategies of Gondwanan and derived Laurasian dromaeosaurids (Dinosauria, Theropoda, Paraves): Inferences from morphometric and comparative anatomical studies [PDF]

, 2020
Tetrapod limbs morphology is a reliable proxy of locomotor capacities. Beyond this, other aspects of life habits, such as predation abilities, can also be relevant to determine main morphofunctional appendicular properties, which ultimately reflect a ...
Gianechini, Federico Abel, Marcos D. Ercoli, Díaz Martínez, Ignacio, Ercoli, Marcos Darío, Ignacio Díaz‐Martínez, Federico A. Gianechini   +5 more
core   +1 more source

Vertebral pneumaticity of the paravian theropod Unenlagia comahuensis, from the Upper Cretaceous of Patagonia, Argentina

, 2021
Postcranial skeletal pneumaticity (PSP) characterizes extant birds. This feature is related to a series of air sacs connected to the lungs and prolonged in diverticula that invade bones internally.
Gianechini, Federico Abel, Zurriaguz, Virginia Laura   +1 more
core   +1 more source

Revision of the Deinonychosauria (Dinosauria, Theropoda) from Argentina: anatomy and phylogeny [PDF]

, 2014
Deinonychosauria es un grupo de dinosaurios terópodos celurosaurios, con un dígito pedal II con capacidad de hiperextensión, entre otros rasgos. Los registros son mayormente del hemisferio norte, aunque también existen registros del hemisferio sur.
Gianechini, Federico Abel
core   +1 more source

New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.

, 2023
We studied an assemblage of teeth from Laje do Coringa, São Luís-Grajaú Basin, Alcântara Formation, State of Maranhão, Brazil. The collection sites are dated as Albian–Cenomanian. Ten teeth were submitted to morphological analysis in Scanning Electron Microscopy, with the goal of identifying materials likely associated with unenlagiine theropod ...
Letizio, Luiz Antonio, Bertini, Reinaldo J., Medeiros, Manuel Alfredo   +2 more
openaire   +2 more sources

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.
Candeiro, C. R., Bergqvist, L. P., Furtado, M. R.   +2 more
core   +1 more source

Theropod dinosaur diversity of the lower English Wealden: analysis of a tooth‐based fauna from the Wadhurst Clay Formation (Lower Cretaceous: Valanginian) via phylogenetic, discriminant and machine learning methods

Papers in Palaeontology, Volume 10, Issue 6, November/December 2024.
Abstract The Lower Cretaceous Wealden Supergroup of southern England yields a diverse assemblage of theropod dinosaurs, its taxa being represented by fragments in addition to some of the most informative associated skeletons of the European Mesozoic. Spinosaurids, neovenatorid allosauroids, tyrannosauroids and dromaeosaurids are among reported Wealden ...
Chris T. Barker, Lucy Handford, Darren Naish, Simon Wills, Christophe Hendrickx, Phil Hadland, Dave Brockhurst, Neil J. Gostling   +7 more
wiley   +1 more source

Evidencias de predación sobre los huesos de Buitreraptor gonzalezorum (Theropoda, Unenlagiinae): implicancias tafonómicas y paleobiológicas

, 2013
Fil: Gianechini, Federico Abel. Área de Paleontología, Fundación de Historia Natural 'Félix de Azara' Departamento de Ciencias Naturales y Antropológicas, CEBBAD, Universidad Maimónides; Argentina.Fil: de Valais, Silvina.
Gianechini, Federico Abel, de Valais, Silvina   +1 more
core   +1 more source

Dentes fósseis de teropodomorfos da Bacia São Luís / Grajaú, Albiano / Cenomaniano do estado do Maranhão, e prováveis associações taxonômicas

, 2017
Os dinossauros, assim como outros seres extintos, despertam a curiosidade do ser humano desde que foram conhecidos. Imaginar como estes seres viviam pode ser uma tarefa difícil, uma vez que não podemos vê-los em seu habitat natural.
Letizio, Luiz Antonio [UNESP]
core   +1 more source

Revisión de los Deinonychosauria (Dinosauria, Theropoda) de la Argentina: anatomía y filogenia

Deinonychosauria es un grupo de dinosaurios terópodos celurosaurios, con un dígito pedal II con capacidad de hiperextensión, entre otros rasgos. Los registros son mayormente del hemisferio norte, aunque también existen registros del hemisferio sur.
Gianechini, Federico Abel
core  

Unenlagiinae revisited: dromaeosaurid theropods from South América [PDF]

Anais da Academia Brasileira de Ciências, 2011
Over the past two decades, the record of South American unenlagiine dromaeosaurids was substantially increased both in quantity as well as in quality of specimens.
Federico A. Gianechini, Sebastian Apesteguia   +1 more
doaj   +8 more sources