Monteiro, Débora Barroso, and Sandro Marcelo Scheffler. “Crinoidea (Comatulida) from Pirabas Formation (Early Miocene), Pará State, Brazil”. Revista Brasileira De Paleontologia, vol. 28, no. 2, Aug. 2025, p. e20250446, doi:10.4072/rbp.2025.2.0446.