BARBOSA, C. .; CORREIA, P.; MUCHAGATA, J.; DOMINGOS, R.; SÁ, A. A. . Phyllotheca douroensis sp. nov., a new equisetalean fossil-species from the Douro Carboniferous Basin (Upper Pennsylvanian; NW Portugal): palaeobiogeographical, systematic and evolutionary implications. Biosis: Biological Systems, [S. l.], v. 3, n. 1, p. e001, 2022. DOI: 10.37819/biosis.003.01.0162. Disponível em: https://eaapublishing.org/journals/index.php/biosis/article/view/162. Acesso em: 28 jun. 2022.