Results 31 to 40 of about 12,688 (202)

A INFLUÊNCIA DA INUNDAÇÃO NA DINÂMICA DA VEGETAÇÃO DA PLANÍCIE FLUVIAL DO ALTO RIO PARANÁ EM 2007

Revista Brasileira de Geomorfologia, 2013
A distribuição da vegetação da planície fluvial do rio Paraná é controlada pelas formas de relevo, pela dinâmica fluvial e pela ação antrópica. A dinâmica fluvial exerce sua influência por meio da variação do nível de água, responsável pela expansão ou ...
Everton Hafemann Fragal, Fabio Corrêa Alves, Edvard Elias de Souza Filho   +2 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

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

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Pimelodus heraldoi Azpelicueta, 2001, a junior synonym of Pimelodus microstoma Steindachner, 1877 (Siluriformes: Pimelodidae)

Neotropical Ichthyology
The examination of the holotype and 61 of the 64 paratypes of Pimelodus heraldoi, syntypes of P. microstoma and additional specimens from the upper rio Paraná showed that the former species is a junior synonym of the latter.
Frank Raynner V Ribeiro, Carlos Alberto S Lucena   +1 more
doaj   +1 more source

La vegetación reófila del Nordeste argentino. Las comunidades vegetales con Podostemaceae de la Provincia de Misiones

Boletín de la Sociedad Argentina de Botánica, 2014
En la provincia de Misiones, comunidades vegetales con Podostemáceas viven en rápidos y saltos de los arroyos pertenecientes a dos cuencas (Ríos Paraná y Uruguay).
José Luis Fontana
doaj   +1 more source

A new occurrence of tetrapod footprints from the Late Triassic of the Candelária Sequence, Brazil

The Anatomical Record, EarlyView.
Abstract The Hyperodapedon Assemblage Zone of the Candelária Sequence (Santa Maria Supersequence, Paraná Basin) preserves one of the most significant Late Triassic continental vertebrate assemblages in southern Brazil. Despite the relatively well‐documented body fossil record from this interval, ichnological records remain comparatively scarce.
Murilo Andrade‐Silva, Heitor Francischini   +1 more
wiley   +1 more source

Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upperAraguaia river basins, central Brazil

Neotropical Ichthyology
Seven new species of the Rivulus punctatus group collected during recent field studies in central Brazil are described. Rivulus dapazi n. sp., from the upper rio Correntes drainage, rio Paraguay basin, is diagnosed by a unique color pattern of the anal ...
Wilson J. E. M. Costa
doaj   +1 more source

Modelagem hidrodinâmica do canal do rio Paraná, trecho Porto São José - Porto 18. Parte I: Caracterização física do canal

Acta Scientiarum: Technology, 1999
Os estudos ambientais na Planície de Inundação do rio Paraná, na região de Porto Rico, necessitam dos dados fluviométricos do rio Paraná, no trecho Porto São José - Porto 18, os quais devem ser fornecidos por meio de um modelo matemático hidrodinâmico ...
Astrid Meira Martoni, Roberto Cruz Lessa
doaj   +1 more source