L. S. Antonietto e M. I. F. Ramos, “On the multiple holotypes of species of Perissocytheridea Stephenson, 1938 described from the Pirabas Formation (Oligo-Miocene), Brazil”, bcnaturais, vol. 18, nº 3, dez. 2023, doi: 10.46357/bcnaturais.v18i3.919.