IVANOV, Alexander. New ptyctodontid placoderm from the Famennian (Upper Devonian) of European Russia. Biological Communications, [S. l.], v. 67, n. 4, p. 247–252, 2022. DOI: 10.21638/spbu03.2022.401. Disponível em: https://biocomm.spbu.ru/article/view/13923. Acesso em: 27 nov. 2024.