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

por Batista, Maria Edenilce Peixoto, Silva, Delmira da Costa, Sales, Marcos A. F., Sá, Artur A., Saraiva, Antônio A. F., Loiola, Maria Iracema Bezerra
Publicado 2017