Ramalho, L.V., Távora, V.A., Tilbrook, K.J. & Zágoršek, K. (2015)

New species of Hippopleurifera (Bryozoa, Cheilostomata) from the Miocene
Pirabas Formation, Pará state, Brazil

. Zootaxa, 3999 (1), 125–134.