Results 31 to 40 of about 277 (161)

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., Ceolin, Daiane, Kochhann, Karlos G.D., Krahl, Guilherme, Fauth, Gerson, Bergue, Cristianini T., Savian, Jairo F., Strohschoen Junior, Oscar, Simões, Marcello G., Assine, Mario L.   +9 more
openaire   +2 more sources

Histórico das Pesquisas Paleontológicas na Bacia do Araripe, Nordeste do Brasil [PDF]

Anuário do Instituto de Geociências, 2005
The Araripe Basin is located in Northeastern Brazil and is known by its diversified Cretaceous fauna and flora. The great scientific valuable fossils as insects, plants, mollusks, fishes and pterosaurs are represented mainly in Santana Formation ...
Marise Sardenberg Salgado de Carvalho, Maria Eugenia C. Marchesini Santos   +1 more
doaj  

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

Geobiology
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, Wiemann J, Brosnan L, Rickard WDA, Vajda V, Böttcher ME, Greenwood PF, Grice K.   +7 more
europepmc   +2 more sources

Biological screening of araripe basin medicinal plants using Artemia salina Leach and pathogenic bacteria.

Pharmacogn Mag, 2010
Many medicinal plant species from the Araripe Basin are widely known and used in folk medicine and for commercial manufacturing of phytotherapeutic products. Few ethnobotanical and pharmacological studies have been undertaken in this region, however, in spite of the great cultural and biological diversity found there.Extracts of 11 plant species ...
da Costa JG, Campos AR, Brito SA, Pereira CK, Souza EO, Rodrigues FF.   +5 more
europepmc   +4 more sources

Mapping of Vulnerability and Risk of Groundwater Pollution in the Eastern Portion of the Araripe Sedimentary Basin, Ceará, Brasil [PDF]

Anuário do Instituto de Geociências, 2019
The present work presents the assessment of the vulnerability and risk of groundwater pollution in the eastern portion of the Araripe Sedimentary Basin, Ceará, Brasil, through the GOD and POSH methods.
Maria da Conceição Rabelo Gomes, Luiz Alberto Ribeiro Mendonça, Itabaraci Nazareno Cavalcante   +2 more
doaj   +1 more source

The first Jurassic theropod from the Sergi Formation, Jatobá Basin, Brazil

Anais da Academia Brasileira de Ciências, 2021
Archosaur osteological remains are abundant in Brazil, particularly from the Triassic and Cretaceous strata, but in Jurassic, the record is predominantly represented by ichnofossils.
KAMILA L.N. BANDEIRA, ARTHUR S. BRUM, RODRIGO V. PÊGAS, LUCY G. DE SOUZA, PAULO VICTOR LUIZ G.C. PEREIRA, ANDRÉ EDUARDO P. PINHEIRO   +5 more
doaj   +1 more source

An enigmatic tropical conifer from the Early Cretaceous of Gondwana [PDF]

Acta Palaeontologica Polonica
We describe a new genus of Leliacladus Batista & L.Kunzmann with the type species Leliacladus (Brachyphyllum) castilhoi (Duarte, 1985) Batista & L.Kunzmann gen. nov. et comb.
Maria Edenilce P. Batista, Antônio Álamo F. Saraiva, Flaviana J. De Lima, Renan A.M. Bantim, Allysson P. Pinheiro, Daniel B. Silva, Lutz Kunzmann   +6 more
doaj   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

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.
M.G. Rodrigues, S.A. Matos, F.G. Varejão, F.T. Fürsich, L.V. Warren, M.L. Assine, M.G. Simões   +6 more
openaire   +3 more sources

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source