Results 111 to 120 of about 500 (140)
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 ...
Karlos G D Kochhann +2 more
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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, M G Simões
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Zootaxa, 2020
The Araripe Basin is the largest inland basin in northeastern Brazil is known for its preservation excellent, number of specimens and variety of fossil species. The Araripe Basin stands out for its fossiliferous content of well known fossil groups, from vertebrates to invertebrates, especially decapod crustaceans.
Alencar, Damares Ribeiro +3 more
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The Araripe Basin is the largest inland basin in northeastern Brazil is known for its preservation excellent, number of specimens and variety of fossil species. The Araripe Basin stands out for its fossiliferous content of well known fossil groups, from vertebrates to invertebrates, especially decapod crustaceans.
Alencar, Damares Ribeiro +3 more
openaire +6 more sources
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.
Mario Assine, Mitsuru Arai
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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
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Early Cretaceous bivalves of the Romualdo Formation, Araripe Basin, northeastern Brazil
Cretaceous ResearchSuzana Aparecida Matos +2 more
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Cretaceous Research, 2021
Abstract A pteranodontoid pterosaur with anhanguerid affinities (MPSC R 1935) from the Romualdo Formation (Lower Cretaceous, Aptian), is described here and provides one of the few cases where the ontogenetic stage is established by comparison of skeletal fusion and detailed osteohistological analyses. The specimen comes from the Baixa Grande locality
Renan Alfredo Machado Bantim +5 more
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Abstract A pteranodontoid pterosaur with anhanguerid affinities (MPSC R 1935) from the Romualdo Formation (Lower Cretaceous, Aptian), is described here and provides one of the few cases where the ontogenetic stage is established by comparison of skeletal fusion and detailed osteohistological analyses. The specimen comes from the Baixa Grande locality
Renan Alfredo Machado Bantim +5 more
openaire +1 more source
Palaeobiodiversity and Palaeoenvironments
Alcina Magnólia Franca Barreto +2 more
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Alcina Magnólia Franca Barreto +2 more
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