J. Coimbra

Publications74
h-index16
Citations732
Highly Influential Citations29
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Biostratigraphy of Lower Cretaceous microfossils from the Araripe basin, northeastern Brazil
Abstract A biostratigraphic study was carried out in the Lower Cretaceous Araripe basin, northeastern Brazil, allowing the recognition of several chronostratigraphic units: the Dom Joao…
On the Validity of Two Lower Cretaceous Non-marine Ostracode Genera: Biostratigraphic and Paleogeographic Implications
TLDR
Both genera Hourcqia and Pattersoncypris must be suppressed, and Cypridea africana should be transferred to this genus.
The ecological and zoogeographical significance of the sub-Recent Ostracoda off Cabo Frio, Rio de Janeiro State, Brazil
Abstract An environmental analysis based on the ostracod fauna was carried out on 43 sediment samples collected during the Geocosta Rio II Expedition to the northern continental margin of State of…
SPATIAL VARIATION IN THE TEMPORAL RESOLUTION OF SUBTROPICAL SHALLOW-WATER MOLLUSCAN DEATH ASSEMBLAGES
Abstract: Fossil assemblages are expected to be time-averaged as a result of biological and physical processes that mix skeletal remains. Our quantitative understanding of time-averaging derives…
Late Cenozoic sea level changes evidenced by ostracodes in the Pelotas basin, southernmost Brazil
Abstract Ostracodes recovered from sediments in seven onshore boreholes within the Pelotas basin, State of Rio Grande do Sul, indicate several continuous nearshore environments and at least four…
Biostratigraphy and paleoceanographical significance of the Neogene planktonic foraminifera from the Pelotas Basin, southernmost Brazil
Abstract Analysis of the planktonic foraminifers recovered from 1-SCS-2 drill-hole, Florianopolis platform (Pelotas Basin, southern Brazilian Atlantic Margin), allowed recognition of the Catapsydrax…
Taphonomic signatures in molluscan fossil assemblages from the Holocene lagoon system in the northern part of the coastal plain, Rio Grande do Sul State, Brazil
Abstract Molluscan shell accumulations (shell beds) are very common in shallow marine and estuarine environments in South America and also on the continental shelf between Argentina and southern…
Taxonomy of Limnic Ostracoda (Crustacea) from the Alagamar Formation, Middle–Upper Aptian, Potiguar Basin, Northeastern Brazil
Abstract Fifteen limnic ostracodes species have been recorded in the Alagamar Formation, Potiguar Basin: Cypridea araripensis Silva, 1978a; Cypridea? sp., Harbinia sinuata (Krömmelbein and Weber,…
PALEOCEANOGRAPHIC CHANGES THROUGH THE LAST 130 KA IN THE WESTERN SOUTH ATLANTIC BASED ON PLANKTONIC FORAMINIFERA
This work reconstructs Late Quaternary paleoceanographic changes in the western South Atlantic Ocean based on sedimentary core GL-77, recovered from the lower continental slope in the Campos basin,…
Cretaceous marine Ostracoda from the Potiguar basin, Northeastern Brazil
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