Petrography of Evaporite Facies from the Ipubi Member, Santana Formation (Araripe Basin) [PDF]
Anuário 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
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A regurgitalite reveals a new filter-feeding pterosaur from the Santana Group [PDF]
Scientific ReportsThe 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
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Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time. [PDF]
GeobiologyABSTRACT 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
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Stratigraphic analysis of Brejo Santo Formation, Araripe Basin, Northeast Brazil: paleogeographic implications [PDF]
Geologia 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
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Química 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
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Physicochemical investigation of shrimp fossils from the Romualdo and Ipubi formations (Araripe Basin). [PDF]
PeerJ, 2019 The Ipubi and Romualdo Formations are Cretaceous units of the Araripe Basin (Santana Group). The first and most ancient was deposited in a lake environment, and some fossils were preserved in shales deposited under blackish conditions. The second was deposited in a marine environment, preserving a rich paleontological content in calcareous concretions.
Barros OA +8 more
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Growth ring analysis of fossil coniferous woods from early cretaceous of Araripe Basin (Brazil) [PDF]
Anais da Academia Brasileira de Ciências, 2011 Growth ring analysis on silicified coniferous woods from the Missão Velha Formation (Araripe Basin - Brazil) has yielded important information about periodicity of wood production during the Early Cretaceous in the equatorial belt.
Etiene F. Pires, Margot Guerra-Sommer
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A new azhdarchoid pterosaur from the Lower Cretaceous of Brazil and the paleobiogeography of the Tapejaridae [PDF]
Acta Palaeontologica Polonica, 2021 The Tapejaridae were an apparently worldwide distributed clade of edentulous pterosaurs, being a major component of several Lower Cretaceous terrestrial faunas.
Gabriela M. Cerqueira +4 more
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New brachyuran crabs from the Aptian–Albian Romualdo Formation, Santana Group of Brazil: Evidence for a Tethyan connection to the Araripe Basin [PDF]
Acta Palaeontologica Polonica, 2018 Despite the exceptional palaeontological richness of the renowned Santana Group from the Early Cretaceous Araripe Basin of Brazil, only one specimen of true crabs (Brachyura) has been discovered to date.
Ludmila A.C. Prado +3 more
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The Families Veneridae, Trochidae, Akeridae and Acteonidae (Mollusca), in the Romualdo Formation: Paleoecological and Paleobiogeographic Aspects in the Lower Cretaceous of the Araripe Basin, NE of Brazil [PDF]
Anuário do Instituto de Geociências, 2019 Fossil mollusks in the Araripe Sedimentary Basin have been reported since the 1960s, with bivalves present in the Crato and Romualdo formations and gastropods restricted to the latter.
Priscilla Albuquerque Pereira +2 more
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