SHUKLA, P.; BHANDARI, N. Physical, chemical and biological changes at geological boundaries: causes, consequences and clues based on the study of Indian sections. Journal of Palaeosciences, [S. l.], v. 46, n. (1-2), p. 41–62, 1997. DOI: 10.54991/jop.1997.1316. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1316. Acesso em: 2 may. 2024.