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Borreria catolensis, described based on specimens lacking mature fruits and seeds, is here treated as a new synonym of Psyllocarpus intermedius (Rubiaceae, Spermacoceae), an endemic species from the state of Bahia, northeastern Brazil. This new treatment is based on the examination of a newly found duplicate of a paratype which bears these missing structures, spawning a detailed micromorphological...
The molecular and elemental composition of immature kerogens isolated from Upper Cretaceous marine carbonates from Sergipe Basin, Brazil were investigated using combined pyrolysis-gas chromatography/mass spectrometry and organic petrographic techniques. The kerogens are predominantly composed of reddish-fluorescing amorphous organic matter (AOM) and variable amounts of yellow-fluorescing alginite...
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