Results 41 to 50 of about 20,372 (184)

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

Sedimentological and provenance response to Cambrian closure of the Clymene ocean: the upper Alto Paraguai Group, Paraguay belt, Brazil

, 2012
Final Gondwana amalgamation was marked by the closure of the Neoproterozoic Clymene ocean between the Amazonia craton and central Gondwana. The events which occurred in the last stage of this closure were recorded in the upper Alto Paraguai Group in the ...
Trindade, Ricardo, Alan S. Collins, McGee, Ben, McGee, B., Trindade, R., Nogueira, Afonso C. R., Ben McGee, Bandeira, Jose, Collins, Alan S., José Bandeira, Ricardo Trindade, Bandeira, J., Noguiera, A., Afonso C.R. Nogueira, Collins, A.   +14 more
core   +1 more source

Glossopteris en los bosques de Gondwana [PDF]

, 2017
No todas las plantas que componen la vegetación actual formaban parte de la flora en tiempos geológicos remotos, y recíprocamente muchas plantas que vivieron en ese pasado no llegaron a la actualidad.
Cariglino, Barbara, Balarino, María Lucía   +1 more
core   +1 more source

New fossil unveils the dentary anatomy of the rare lepidosauromorph Cargninia enigmatica from the Upper Triassic of Southern Brazil

The Anatomical Record, EarlyView.
Abstract Nowadays, Lepidosauria is a diverse group represented by squamates and the rhynchocephalian tuatara. However, their origins date back to the end of the Permian Period, when the stem lineages Lepidosauromorpha and Archosauromorpha diverged. Within the lepidosauromorph stem lineage, a few species have been described with unstable phylogenetic ...
Lísie Vitória Soares Damke, Vitória Zanchett Dalle‐Laste, Leonardo Kerber, Lúcio Roberto‐da‐Silva, Rodrigo Temp Müller   +4 more
wiley   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil)

, 2020
International audienceThe Avalon biota (Ediacaran Period, 570–559 Ma) marks the first appearance of macroscopic and complex benthic communities in the fossil record.
Osés, Gabriel, Figueiredo, Milene, Pacheco, Mírian Liza Alves Forancelli, Prado, Gustavo M.E.M., Chemale Junior, Farid, Simões, Luiz Sérgio Amarante, Albani, Abderrazak El, Paim, Paulo Sergio Gomes, Osés, Gabriel Ladeira, Becker-Kerber, Bruno, El Albani, Abderrazzak, da Rosa, Ana Lucia Zucatti, Simões, Luiz Sérgio Amarante [UNESP], Girelli, Tiago Jonatan, Junior, Farid Chemale   +14 more
core   +1 more source

Petrología, Geoquímica y Geología estructural de la Sierra de Copacabana (provincia de Catamarca, República Argentina) y su significado geotectónico en el contexto del margen occidental del Gondwana

Estudios Geologicos, 1998
La Sierra de Copacabana es una unidad orográfica emplazada en el ambiente de Sierras Pampeanas Noroccidentales, al E del Sistema de Famatina. Tanto su basamento, compuesto por rocas metamórficas de grado medio formadas durante el ciclo Pampeano, como los
J. P. López
doaj   +1 more source

Morphological plasticity in the dentition of the lungfish Gnathorhiza from the Permian of Brazil: A population‐level geometric morphometric analysis

The Anatomical Record, EarlyView.
Abstract Dental plates are pivotal in the lungfish paleontological record, constituting highly mineralized structures resilient to diagenetic processes. This study provides a detailed description and quantitative shape analysis of 95 newly discovered Gnathorhiza sp. dental plates from the Middle–Late Permian Corumbataí Formation, Brazil.
Mauro B. S. Lacerda, Gustavo H. N. Petreca, Gabriel E. B. de Barros, Ana Emilia Quezado, Marcelo A. Fernandes   +4 more
wiley   +1 more source

Bioerosion traces in bones reveal an increase in ethological diversity in the insect exploitation of carcasses in the late Triassic

The Anatomical Record, EarlyView.
Abstract This study presents the first detailed description of bioerosion traces produced by insects in bones from the Santa Cruz Sequence (early Carnian, Santa Maria Supersequence, Brazil). An array of traces is reported, consisting of notches, a tube, trails of grooves attributed to the ichnotaxon Osteocallis mandibulus and ornamented depressions ...
Lucca S. Cunha, Francesco Battista, Heitor Francischini   +2 more
wiley   +1 more source

A customised GIS to aid Gondwana research

, 2004
Geographical information Systems (GIS) provide tools for manipulating and analysing the large thematic datasets associated with Gondwana research. We have used a customised version of Environmental Systems Research Institute's ArcGIS, version 8.2, as the
Livermore, Roy A., Winterton, Rose L.
core   +1 more source