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
europepmc +4 more sources
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
doaj +5 more sources
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
doaj +1 more source
Diversity, 2023 The Mesozoic Teleostei †Ichthyodectiformes presents a widespread distribution in marine brackish and freshwater deposits worldwide. The Brazilian fossil record of this group is represented by five nominal genera distributed exclusively in the sedimentary
Diogo de Mayrinck +3 more
doaj +1 more source
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
doaj +1 more source
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
doaj +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 ...
Bom, Marlone H.H. +9 more
openaire +2 more sources
Validation of Chronocancer camilosantanai† Santana, Tavares, Martins, Melo & Pinheiro (Crustacea, Decapoda, Brachyura) from the Romualdo Formation, Araripe Sedimentary Basin, Brazil [PDF]
Papéis Avulsos de Zoologia, 2023 Santana et al. (2022) described a new genus and species of fossil crab, Chronocancer camilosantanai, from carbonate concretions of the Romualdo Formation of the Araripe Sedimentary Basin. The journal in which the description appeared was published online
William Santana +4 more
doaj +1 more source
Basin Research, Volume 35, Issue 1, Page 61-85, February 2023., 2023 3D evolutionay diagram showing the evolution of the Rio do Peixe Basin and the relationship between the Precambrian basement fabric (a) with the nucleation and orientation of the main syn‐rift normal faults (b) and the subsequent syn‐rift folding (c) over steps and/or curvatures in normal fault geometries.
Leonardo M. Pichel +5 more
wiley +1 more source
TAXON, Volume 70, Issue 4, Page 701-719, August 2021., 2021 Abstract Knowledge of relationships among plants has improved dramatically but for many groups, it still rests solely on information from the plastid genome. Consequently, only parts of the organisms’ evolutionary history are revealed. For the ancient gymnosperms of Ephedra (Gnetales), previous conclusions were based on both plastid and nuclear ...
Catarina Rydin +3 more
wiley +1 more source