BOSE, M. The fossil flora of the Jabalpur group - 1. Ptilophyllum institacallum n. sp. Journal of Palaeosciences, [S. l.], v. 7, n. (1-2), p. 26–28, 1958. DOI: 10.54991/jop.1958.568. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/568. Acesso em: 14 sep. 2024.