Hodgkinson, R. L. (1992). 'Placopsilina' cenomana d'Orbigny from France and England and the type species of Placopsilina d'Orbigny, 1850 (Foraminiferida). Bulletin of the British Museum (Natural History) Geology. 48(1): 1-8.
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Hodgkinson, R. L.
1992
'Placopsilina' cenomana d'Orbigny from France and England and the type species of Placopsilina d'Orbigny, 1850 (Foraminiferida).
Bulletin of the British Museum (Natural History) Geology