Olga Alcântara Barros

Large-Field Electron Imaging and X-ray Elemental Mapping Unveil the Morphology, Structure, and Fractal Features of a Cretaceous Fossil at the Centimeter Scale

Naiara C. Oliveira, João H. Silva, Olga Alcântara Barros et al. · Analytical Chemistry · 2015 · 20 citations

Natural Sciences, Earth Sciences, Zoology +13

Spectroscopic studies of wood fossils from the Crato Formation, Cretaceous Period

J.H. da Silva, Paulo Freire, B.T.O. Abagaro et al. · Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy · 2013 · 20 citations

Natural Sciences, Botany, Chemistry +11

Vibrational spectroscopy and X‐ray diffraction applied to the study of Cretaceous fish fossils from Araripe Basin, Northeast of Brazil

Paulo Freire, João H. Silva, F. E. Sousa‐Filho et al. · Journal of Raman Spectroscopy · 2014 · 18 citations

Natural Sciences, Earth Sciences, Geology +9

Physicochemical investigation of shrimp fossils from the Romualdo and Ipubi formations (Araripe Basin)

Olga Alcântara Barros, João Hermínio da Silva, Gilberto D. Saraiva et al. · PeerJ · 2019 · 17 citations · Full text

Natural Sciences, Earth Sciences, Paleontology +13

Spectroscopic studies of the fish fossils ( Cladocyclus gardneri and Vinctifer comptoni) from the Ipubi Formation of the Cretaceous Period

F.E. Sousa Filho, J.H. da Silva, Gilberto D. Saraiva et al. · Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy · 2015 · 13 citations

Natural Sciences, Biology, Zoology +15