Results 141 to 150 of about 4,072 (171)

Presepsin as a diagnostic biomarker for sepsis across neonates, children, and adults: A meta-analysis. [PDF]

Biomol Biomed
Peng K, Zhang X, Li Q, Luo Z.
europepmc   +1 more source

Paleoenvironmental evolution of the Aptian Romualdo Formation, Araripe Basin, Northeastern Brazil

Global and Planetary Change, 2021
Abstract The tectonic evolution of the Equatorial Atlantic Gateway (EAG) throughout the early Cretaceous had global implications. This break-up of western Gondwana has played a significant role in causing, or amplifying, environmental changes due to its influence on ocean chemistry, nutrient distribution, water mass circulation, and bottom waters ...
Daiane Ceolin, Karlos G D Kochhann, Guilherme Krahl   +2 more
exaly   +3 more sources

Short-lived “Bakevelliid-Sea” in the Aptian Romualdo Formation, Araripe Basin, northeastern Brazil

Cretaceous Research, 2020
Abstract New Aptian (Lower Cretaceous) bakevelliid bivalves are described for the Romualdo Formation, Santana Group, Araripe Basin, northeastern Brazil. Together with the other known member of the family Bakevelliidae, already recorded from the unit (i.e., Aguileria dissita), the new bivalves (Araripevellia musculosa gen. et sp.
Mariza Rodrigues, Filipe Giovanini Varejão, Mario L Assine   +2 more
exaly   +4 more sources

Taphonomy and ontogeny of the brachyuran crab Exucarcinus gonzagai, from the Lower Cretaceous (Aptian) Romualdo Formation, Araripe Basin, NE Brazil

Journal of South American Earth Sciences, 2021
Abstract Brachyurans played important ecological and evolutionary roles in the marine benthic communities of the past and were the components of the Mesozoic Decapod Revolution. Therefore, the search for their fossil remains is fundamental to understanding the composition, diversity, and ecological structure of Mesozoic marine benthic communities ...
Suzana Aparecida Matos, Antonio Castilho, Filipe Giovanini Varejão   +2 more
exaly   +3 more sources

Chronostratigraphic constraints and paleoenvironmental interpretation of the Romualdo Formation (Santana Group, Araripe Basin, Northeastern Brazil) based on palynology

Cretaceous Research, 2020
Abstract The Santana Group of the Araripe Basin is a major paleontological unit in Brazil, incorporating two important Cretaceous Konservat-Lagerstatten. The lower formations are Aptian, but the age of the uppermost Romualdo Formation has been extended into the Albian.
Mitsuru Arai, Mario L Assine
exaly   +4 more sources

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A new toothed pterosaur (Pterodactyloidea: Anhangueridae) from the Early Cretaceous Romualdo Formation, NE Brazil

Zootaxa, 2014
A new species of pterosaur, Maaradactylus kellneri gen. nov., sp. nov. (Archosauria: Pterosauria) from the Romualdo Formation (Aptian/Albian), is herein described. The specimen (MPSC R 2357) was found at Sítio São Gonçalo, Santana do Cariri city (State of Ceará, northeast Brazil) and consists of the skull, atlas and axis, and represents one of the ...
Renan A M, Bantim, Antônio A F, Saraiva, Gustavo R, Oliveira, Juliana M, Sayão   +3 more
openaire   +4 more sources

Aptian shell beds from the Romualdo Formation (Araripe Basin): Implications for paleoenvironment and paleogeographical reconstruction of the Northeast of Brazil

Sedimentary Geology, 2021
The Aptian Romualdo Formation in the Araripe Basin represents the establishment of an epeiric sea in the Brazilian Northeast during the Early Cretaceous. This unit is composed by a succession of limestones, shales, sandstones, and coquinas, which constitute shell beds near the top.
Leonardo Borghi, Margot Guerra-Sommer
exaly   +4 more sources

Early Cretaceous bivalves of the Romualdo Formation, Araripe Basin, northeastern Brazil

Cretaceous Research
Vitor Bonatto Guerrini, Franz Theodor Fürsich, Mariza Rodrigues   +2 more
exaly   +2 more sources

A new anhanguerid pterosaur specimen from the Romualdo Formation, Araripe Basin (Lower Cretaceous, Northeastern Brazil)

Historical Biology
Fabiana R Costa, Alexander W A Kellner, Rodrigo Vargas Pêgas   +2 more
exaly   +2 more sources

Foraminifera and Ostracoda from the Lower Cretaceous (Aptian–lower Albian) romualdo formation, Araripe basin, northeast Brazil: Paleoenvironmental inferences

Cretaceous Research, 2021
Abstract The goal of this study is to investigate the Aptian–lower Albian microfossil association present in the Romualdo Formation, Araripe Basin, Pernambuco State, northeastern Brazil. Fifty-six samples of calcarenites and claystones were collected from the level where marine invertebrates are concentrated and in the coquinoid limestones, which ...
Rilda C. Araripe, David H. Oliveira, Maria E. Tomé, Renata Moura de Mello, Alcina M.F. Barreto   +4 more
exaly   +2 more sources