MOORE, R. C. Part V, Graptolithina, ch. 1, p. 1-95. Treatise on Invertebrate Paleontology, [S. l.], 1955. DOI: 10.17161/tip.v0i0.5405. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5405.. Acesso em: 4 may. 2024.