FU, Jian. Ichnology and Main Types of Trace Fossils. International Journal of Natural Resources and Environmental Studies, [S. l.], v. 2, n. 2, p. 198–201, 2024. DOI: 10.62051/ijnres.v2n2.22. Disponível em: https://wepub.org/index.php/IJNRES/article/view/1631. Acesso em: 20 may. 2026.