Results 11 to 20 of about 2,368 (213)

Analogue modelling of basin inversion: implications for the Araripe Basin (Brazil) [PDF]

open access: yesSolid Earth, 2023
Basin inversion is a process that takes place when a sedimentary basin is subjected to compressional stresses resulting in the reactivation of pre-existing faults and/or the localization of deformation along new reverse faults.
P. C. Richetti   +9 more
doaj   +5 more sources

Extending the Geographic Range of Pterosaurs in the Araripe Basin: First Record from the Romualdo Formation (Araripe Basin) in Piauí, Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The Araripe Basin in northeastern Brazil is a key site for Cretaceous pterosaur fossils from Gondwanan deposits. Most discoveries are concentrated in its northern portion, particularly in Ceará state, within the Crato and Romualdo formations. In contrast,
RENAN A.M. BANTIM   +5 more
doaj   +2 more sources

For your eyes too: a new set of images of biological materials from the scientific commissioning of the MOGNO beamline at Sirius. [PDF]

open access: yesJ Synchrotron Radiat
From whole specimens to histological level reconstructions, images derived from 3D synchrotron‐based microtomography (SR‐microCT) have emerged as a tool that is revolutionizing a wide range of biological research. This paper presents the first commissioning results from experiments to image the anatomy of small animals and specimens from zooarchaeology
Colaço MV   +13 more
europepmc   +2 more sources

The palate and choanae structure of the Susisuchus anatoceps (Crocodyliformes, Eusuchia): phylogenetic implications [PDF]

open access: yesPeerJ, 2018
Crocodyliformes is a group with a broad fossil record, in which several morphological changes have been documented. Among known transformations the most iconic is perhaps the series of changes seen in the structural evolution of the choanae.
Karla J. Leite, Daniel C. Fortier
doaj   +3 more sources

Petrography of Evaporite Facies from the Ipubi Member, Santana Formation (Araripe Basin) [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
The Ipubi member of the Santana Formation (Araripe Basin) is a sulfated evaporite succession composed of gypsum and anhydrite of Aptian age, thus, it is chronocorrelated to the Brazilian Margin Salt Phase, when thick layers of salts accumulated.
Guilherme Duarte, Leonardo Borghi
doaj   +3 more sources

A regurgitalite reveals a new filter-feeding pterosaur from the Santana Group [PDF]

open access: yesScientific Reports
The Santana Group in Northeast Brazil has yielded a remarkable discovery: the first filter-feeding pterosaur from the tropics, named Bakiribu waridza gen. et sp. nov.
R. V. Pêgas   +5 more
doaj   +2 more sources

Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time. [PDF]

open access: yesGeobiology
ABSTRACT Diagenetically mineralized fossil tissues represent invaluable paleobiological evidence of past life. Lipid biomarkers may be identified alongside fossils, yet the relationship between localized, diagenetic mineral precipitation, and lipid preservation remains underexplored.
Tripp M   +7 more
europepmc   +2 more sources

Stratigraphic analysis of Brejo Santo Formation, Araripe Basin, Northeast Brazil: paleogeographic implications [PDF]

open access: yesGeologia USP. Série Científica, 2013
The Araripe Basin has been the subject of several publications in the recent years, notably with respect to the rich paleontological collection of Brejo Santo, Crato and Romualdo Formations.
Gelson Luís Fambrini   +5 more
doaj   +2 more sources

New marine data and age accuracy of the Romualdo Formation, Araripe Basin, Brazil. [PDF]

open access: yesSci Rep, 2020
AbstractA combined biostratigraphic and palaeoecological study of foraminifera, ostracodes and microfacies was carried out on the Aptian in the Sítio Sobradinho section of the Araripe Basin, northeast Brazil. The analysed section represents a deepening-upward sequence with mid-ramp shoal and outer ramp to basin facies associations on a mixed ...
Melo RM   +5 more
europepmc   +4 more sources

Caracterização espectroscópica de peixe do período cretáceo (Bacia do Araripe) Spectroscopic characterization of a fish of the cretaceous period (Araripe Basin)

open access: yesQuímica Nova, 2007
The study of fossils has made considerable progress over the last years as a result of the use of new experimental techniques. This paper describes the chemical composition of a fossilized fish of the Cretaceous period, from a 100 million-year-old ...
Ricardo Jorge Cruz Lima   +5 more
doaj   +2 more sources

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