KOZŁOWSKA, A.; BATES, D.; ZALASIEWICZ, J.; RADZEVIČIUS, S. Evolutionary significance of the retiolitine Gothograptus (Graptolithina) with four new species from the Silurian of the East European Platform (Baltica), Poland and Lithuania . Zootaxa, Auckland, New Zealand, v. 4568, n. 3, p. 435–469, 2019. DOI: 10.11646/zootaxa.4568.3.2. Disponível em: https://www.mapress.com/zt/article/view/zootaxa.4568.3.2. Acesso em: 2 may. 2025.