Rodríguez-Tovar, F.J. y Aguirre, J. 2020. Is Macaronichnus an exclusively small, horizontal and unbranched structure? Macaronichnus segregatis degiberti isubsp. nov. Spanish Journal of Palaeontology. 29, 2 (jul. 2020), 131–142. DOI:https://doi.org/10.7203/sjp.29.2.17682.