Schlagintweit, F. (2024). Nomenclatural status of Orbitolina pileus Fossa-Mancini 1928 (Foraminifera) (junior synonym Palorbitolinoides orbiculatus Zhang 1986) from the Lower Cretaceous of the Himalaya (Ladakh, Tibet). Historical Biology. 36 (7), 1295–1301.
Nomenclatural status of <i>Orbitolina pileus</i> Fossa-Mancini 1928 (Foraminifera) (junior synonym <i>Palorbitolinoides orbiculatus</i> Zhang 1986) from the Lower Cretaceous of the Himalaya (Ladakh, Tibet)