Late Burdigalian (Miocene) age for pectinids (Mollusca-Bivalvia) from the Pirabas Formation (northern Brazil) derived from Sr-isotope (87 Sr/86 Sr) data [PDF]
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2017 The faunas of the highly fossiliferous Pirabas Formation belong to the southern part of the biogeographical unit known as "Neogene Tropical America". This unit developed prior to the closure of the Central American Seaway by the Isthmus of Panama. Until now, the age of the Pirabas Formation was inferred only from biostratigraphy.
Martínez, S +4 more
core +7 more sources
First Record of Miocene Polychaete Cirratulids in the Atlantic Ocean from the Pirabas Formation of Brazil: A MicroCT Approach [PDF]
Anuário do Instituto de GeociênciasA new record of the cirratulid polychaete Diplochaetetes mexicanus Wilson, 1986 from the of Miocene Pirabas Formation outcrops (Burdigalian to Langhian) is documented in the context of the paleodiversity of the equatorial margin of Brazil and represents the first record for the equatorial shelf of South America. D.
Jamille De Sousa da Silva +5 more
openaire +3 more sources
Brazilian Miocene crabs I. Taxonomic review of Cyclocancer tuberculatus Beurlen, 1958 and Hepatella amazonica Beurlen, 1958 (Pancrustacea, Decapoda, Brachyura) [PDF]
, 2023 In describing Cyclocancer to accommodate his new species C. tuberculatus, Beurlen highlighted that his new genus was a cancroid intermediate in form between Atelecyclus and Cancer, but with enough characters to be placed in a new genus. Examination of C.
Aguilera, Orangel +4 more
core +2 more sources
Fish otoliths from the middle Miocene Pebas Formation of the Peruvian Amazon [PDF]
, 2022 A small assemblage of 22 otoliths was identified from the historical collection of Bluntschli and Peyer gathered in 1912 on the Itaya riverbank at Iquitos, Peru (Amazonia), from the Pebas Formation.
Aguilera, Orangel A +3 more
core +1 more source
Sedimentary Geology, 2020 Abstract Outcrops of Neogene carbonates of the North Brazilian platform occur exclusively along the equatorial coast and represent some of the few existing examples of Neogene carbonate systems of the Atlantic coast of South America. The Pirabas Formation (early-middle Miocene) is the northernmost part of this platform.
Aguilera, Orangel +11 more
openaire +2 more sources
Spatial and temporal uplift history of South America from calibrated drainage analysis [PDF]
, 2017 A multidisciplinary approach is used to analyze the Cenozoic uplift history of South America.Residual depth anomalies of oceanic crust abutting this continent help to determine the pattern of present-day dynamic topography.
Hoggard, MJ +3 more
core +3 more sources
A new late Cenozoic species of Abertella (Echinoidea: Clypeasteroida) from Patagonia [PDF]
, 2013 A new species of abertellid sand dollar, Abertella miskellyi n. sp., is described from the Miocene Camarones Formation of Patagonia, southern Argentina. The new taxon corroborates the existence of the genus in South America, given that Abertella is most ...
del Rio, Claudia Julia +3 more
core +2 more sources
Un nouveau cassiduloïde (Echinodermata, Echinoidea) dans l'Albien du bassin de Sergipe-Alagoas, Brésil [PDF]
, 2020 This paper presents a new discovery of the echinoid species Phyllobrissus humilis (Gauthier, 1875) from the Albian age Riachuelo Formation of the Sergipe-Alagoas Basin.
Manso, Cynthia Lara de Castro
core +1 more source
Paleoclimatic interpretations from the Caieira taphoflora, Pirabas Formation, Oligocene/Miocene of the eastern Amazonia, Pará, Brazil [PDF]
, 2021 FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOA tafoflora de Caieira, a qual se encontra associada à ...
Ricardi-Branco, Fresia +1 more
core +1 more source
Tectonics and paleogeography of the Marajó Basin, northern Brazil
Anais da Academia Brasileira de Ciências, 2002 The Marajó Basin area presents geologic and geomorphologic features chiefly due to the Mesozoic extension and post-Miocene neotectonics. The extension event with an Early and a Late Cretaceous phases originated four sub-basins that constitutes the Marajó
JOÃO B. S. COSTA +4 more
doaj +1 more source