HARRIS, T. M. The Zonation of the Yorkshire Jurassic Flora. Journal of Palaeosciences, [S. l.], v. 1, p. 207–211, 1952. DOI: 10.54991/jop.1952.408. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/408. Acesso em: 15 may. 2024.