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Pseudofrenelopsis  and  Brachyphyllum  are two conifers that were part of the Lower Cretaceous (Aptian) taphoflora of the Crato Formation, Araripe Basin, northeastern Brazil. The former genus includes, so far,  P .  capillata  and indeterminate species, whilst the latter is mainly represented by  B .  obesum , the most common plant megafossil recovered from that stratigraphic unit. Here, the stem and leaf anatomy of  Pseudofrenelopsis  sp. and  B .  obesum  specimens is revisited, including the first report of some epidermal and vascular traits for both taxa from the Crato Formation. Along with its paleoecological significance, the new data suggest the presence of more than one  Pseudofrenelopsis  species in the Aptian taphoflora of the Araripe Basin and further support the taxonomic placement of  B .  obesum  within Araucariaceae.

plos one

New data on the stem and leaf anatomy of two conifers from the Lower Cretaceous of the Araripe Basin, northeastern Brazil, and their taxonomic and paleoecological implications