VENDRASCO, Michael J; CHECA, Antonio G; PORTER, Susannah M. Periostracum and fibrous shell microstructure in the unusual Cambrian hyolith Cupitheca. Spanish Journal of Palaeontology, [S. l.], v. 32, n. 1, p. 95–108, 2020. DOI: 10.7203/sjp.32.1.17033. Disponível em: https://turia.uv.es/index.php/sjpalaeontology/article/view/17033. Acesso em: 4 dic. 2024.