Results 71 to 80 of about 665,702 (201)

FIGURE 2 in New Dendrobranchiata fossil preserved in the Brazilian Cretaceous (Aptian/Albian) from the Araripe Basin, Piauí State

, 2023
FIGURE 2. LPP CR-001p and LLP CR-001cp. Arrows show Tharrhias araripis and the new species of fossil shrimp. Scale 1 cm. Photo by Olga A. BarrosPublished as part of Barros, Olga Alcântara & Oliveira, Paulo Victor De, 2023, New Dendrobranchiata fossil ...
Barros, Olga Alcântara, Oliveira, Paulo Victor De   +1 more
core   +1 more source

Estudo de coprólito da bacia sedimentar do Araripe por meios de espectroscopia FT-IR e difração de Raios-X Study of coprolites from the Araripe sedimentary basin through FT-IR spectroscopy and x-ray diffraction

Química Nova, 2007
Coprolites are fossilized faeces that constitute an important source of palaeobiological informations. This paper describes the characterization of some coprolite materials originated from the Romualdo Member of the Santana Formation (Araripe Basin ...
Ricardo Jorge Cruz Lima, Paulo de Tarso Cavalcante Freire, José Marcos Sasaki, Antonio Álamo Feitosa Saraiva, Silvania Lanfredi, Marcos Augusto de Lima Nobre   +5 more
doaj   +1 more source

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

Fine‐Scale Genomic Divergence in the Amazonian Pirarucu (Arapaima gigas) Highlights the Need for Local Management Strategies

Freshwater Biology, Volume 71, Issue 3, March 2026.
ABSTRACT Freshwater habitats face significant human disturbances globally, impacting food security and ecosystems. Protected areas can mitigate biodiversity loss, but limited data on population connectivity hinders conservation management. This study examines pirarucu (Arapaima gigas), a heavily exploited and threatened Amazonian fish, using genomic ...
Julia Tovar Verba, Ricardo J. Pereira, João V. Campos‐Silva, Izeni P. Farias, Tomas Hrbek, Carlos A. Peres, Joseph E. Hawes   +6 more
wiley   +1 more source

FIGURE 10 in New Dendrobranchiata fossil preserved in the Brazilian Cretaceous (Aptian/Albian) from the Araripe Basin, Piauí State

, 2023
FIGURE 10. LPP CR 001cp. Second part of the pereiopods scarcely preserved and with a chelate appearance. Photo by Olga A. Barros.Published as part of Barros, Olga Alcântara & Oliveira, Paulo Victor De, 2023, New Dendrobranchiata fossil preserved in the ...
Barros, Olga Alcântara, Oliveira, Paulo Victor De   +1 more
core   +1 more source

New Neuroptera from Crato Formation, Lower Cretaceous, Araripe Basin, Northeast Brazil [PDF]

, 2021
The family Nymphidae Brauer (Neuroptera) is recorded for the first time to the laminated limestone from Nova Olinda Member, lowermost unit of the Crato Formation, Araripe Basin, Lower Cretaceous, Northeast Brazil.
Martins-Neto, Rafael Gióia
core  

FIGURE 6 in New Dendrobranchiata fossil preserved in the Brazilian Cretaceous (Aptian/Albian) from the Araripe Basin, Piauí State

, 2023
FIGURE 6. LPP CR 001cp. A) Detail of the carapace and pereopod. B) Detail of the large scaphocerite. Rs: Rostrum; An: Antennule; A: Antenna; E: Eyes, S: Scaphocerite; P2: Pereiopods. Photo by Olga A.
Barros, Olga Alcântara, Oliveira, Paulo Victor De   +1 more
core   +1 more source

Preparing β-hemihydrate using massive and fibrous high-grade gypsum: from mineral-ore characterization to compressive strength assessment [PDF]

Anais da Academia Brasileira de Ciências
Gypsum resources from the Araripe Sedimentary Basin (Northeastern, Brazil) are known for their mineralogical quality and simple mining practices. Among the varieties found there, two are notably pure: (i) a semi-opaque lump of coarse grains known locally
PEDRO L. GUZZO, FELIPE S. MARTINS, MATEUS L. IDELFONSO, CARLOS D.F. DE ARAÚJO, VANESSA L.M. LIMA, FILIPE B.M. DE BARROS, MARCELO F. GOMES, ÁUREO O.D. MACHADO   +7 more
doaj   +2 more sources

U-Pb ages and zircon composition of the Araripe Basin Rodrigues et al. in Revision

Here we present major and trace element concentrations, zircon trace element concentrations, and U-Pb age content of twenty samples from the Araripe basin.
Rodrigues, M (via Mendeley Data), Rodrigues, Mariana   +1 more
core   +1 more source

FIGURE 7 in New Dendrobranchiata fossil preserved in the Brazilian Cretaceous (Aptian/Albian) from the Araripe Basin, Piauí State

, 2023
FIGURE 7. LPP CR 001cp. A) Detail of the rostrum and eyes, B) As: Antennal spine, Bs: branchiostegal spine. Arrow shows the base of the scaphocerite. Photo by Olga A.
Barros, Olga Alcântara, Oliveira, Paulo Victor De   +1 more
core   +1 more source