Results 41 to 50 of about 277 (161)

Unearthing Mesozoic beetles through micro‐computed tomography: A new family of Archostemata and the first representatives of Ommatidae and †Notocupes from the Crato Formation

Systematic Entomology, Volume 51, Issue 3, July‐September 2026.
First formally described Archostemata beetles from the Lower Cretaceous Crato Formation are reported, representing the earliest records of the suborder from western Gondwana. Micro‐computed tomography enabled three‐dimensional reconstruction of partially exposed fossils, revealing previously hidden dorsal and ventral morphological characters relevant ...
Gabriel Biffi, Anderson Lepeco, Rolf G. Beutel   +2 more
wiley   +1 more source

Unusual occurrence of Cochlichnus in aeolian sandstones: evidence for a stiletto fly larval origin

Papers in Palaeontology, Volume 12, Issue 3, May/June 2026.
Abstract Cochlichnus anguineus is an ichnotaxon recognized for its distinctive regular wavy morphology. It is a characteristic trace fossil typically associated with aquatic and marginal aquatic environments. However, in this study we examine its unusual occurrence in the aeolian sandstones of the Botucatu Formation (Lower Cretaceous, Paraná Basin ...
Bernardo de C. P. e M. Peixoto, Gabriel E. B. de Barros, Diego Luciano Nascimento, Andrew K. Rindsberg, Gabriel Bertolini, Thândara Jacob, Renato P. Ghilardi, Marcelo A. Fernandes, Heitor R. D. Francischini   +8 more
wiley   +1 more source

Shrimps from the Santana Group (Cretaceous: Albian): new species (Crustacea: Decapoda: Dendrobranchiata) and new record (Crustacea: Decapoda: Caridea)

Anais da Academia Brasileira de Ciências, 2014
The fossil shrimp Araripenaeus timidus n. gen. n. sp. is the first fossil Penaeoidea from Brazil. Here, we describe, illustrate and compare it with Paleomattea deliciosa, a fossil Sergestoidea (Dendrobranchiata) previously described from the same region.
ALLYSSON P. PINHEIRO, ANTÔNIO ÁF. SARAIVA, WILLIAM SANTANA   +2 more
doaj   +1 more source

Shell and long-bone histology, skeletochronology, and lifestyle of Araripemys barretoi (Testudines: Pleurodira), a side-necked turtle of the Lower Cretaceous from Brazil

Anais da Academia Brasileira de Ciências, 2021
In this study we provide a comprehensive investigation of the microanatomical and microstructural aspects of the carapace and limb bones of the Early Cretaceous side-necked turtle, Araripemys barretoi, from the Araripe Basin, Brazil.
MARIANA VALÉRIA A. SENA, RENAN ALFREDO M. BANTIM, ANTÔNIO A.F. SARAIVA, JULIANA M. SAYÃO, GUSTAVO R. OLIVEIRA   +4 more
doaj   +1 more source

Exploring the Gravimetric and Geochronological Links in Ancient Terranes of the São Francisco Craton and Borborema Province, NE‐Brazil

Terra Nova, Volume 38, Issue 2, Page 77-86, April 2026.
ABSTRACT Deep crustal fragments and structural lineaments identified through satellite gravity data provide evidence for the extension of the reworked ancient basement of the Central African Block into the northern São Francisco Craton and southern Borborema Province.
Douglas Teixeira Martins, Wagner da Silva Amaral, Felipe Holanda dos Santos, Evilarde Uchôa Filho   +3 more
wiley   +1 more source

HORTICULTORES CERAMISTAS DA BACIA SEDIMENTAR DO ARARIPE: CLASSIFICAÇÕES ARQUEOLÓGICAS E CARACTERÍSTICAS TECNOLÓGICAS

Clio Arqueológica, 2012
O artigo apresenta os resultados de pesquisa realizada sobre os grupos horticultores ceramistas pré-históricos da Bacia Sedimentar do Araripe - BSA, em especial os da área denominada Cariri Cearense, buscando caracterizar a tecnologia cerâmica do grupo ...
Daniel Luna Machado, Ricardo Pinto de Medeiros   +1 more
doaj  

Aptian/Albian (Early Cretaceous) paleogeography of the South Atlantic: a paleontological perspective

Brazilian Journal of Geology
Paleontological data obtained in recent years reinforce the hypothesis that Aptian marine sedimentation in the sedimentary basins of the Brazilian continental margin - except the Pelotas basin, the southernmost Brazilian basin - took place under the ...
Mitsuru Arai
doaj   +1 more source

Meso and microscopic characterization of deformation bands in porous sandstones: an example on the Paleozoic, Pre- and Sin-rift sequences of the Araripe Basin, Northeast of Brazil [PDF]

Geologia USP. Série Científica, 2012
Deformation bands are narrow tabular volumes developed in porous sandstones. Although these structures are a product ofbrittle deformation, they may have internally a continuous displacement gradient.
João Marculino de Araújo Netto, Fernando César Alves da Silva, Emanuel Ferraz Jardim de Sá   +2 more
doaj  

Role of Complex Crustal and Basinal Structures in Onset of an Intracratonic Rift System: An Example From the Onshore Potiguar Basin, Brazilian Equatorial Margin

Basin Research, Volume 38, Issue 2, March–April 2026.
Schematic evolution model of the Onshore Potiguar Basin, illustrating the role of complex crustal and basinal structures in the onset of this intracratonic rift system in NE Brazilian Equatorial Margin. Red arrows indicate the extensional direction and coloured areas on the surface are the Self‐Organizing Maps populations related to crystalline ...
David L. de Castro, Diógenes C. Oliveira, Germano Melo Jr, Gilsijane V. Ramos, Alanny C. C. Melo, Sidnei P. Rostirolla   +5 more
wiley   +1 more source

Microfacies and diagenetic evolution of the limestones of the upper part of the Crato Formation, Araripe Basin, northeastern Brazil

Brazilian Journal of Geology, 2019
This paper presents the results of a petrographic and diagenetic study of the laminated limestones of the upper part of the Aptian to Albian Crato Formation, northeast of Brazil.
Flávia Araújo de Arruda Cabral, Ana Claúdia da Silveira, Germano Mário Silva Ramos, Tiago Siqueira de Miranda, José Antonio Barbosa, Virgínio Henrique de Miranda Lopes Neumann   +5 more
doaj   +1 more source