Published in Bulletin of the British Museum (Natural History). Geology., in 1962, in volume 7, issue 6, pages 173-196
Created: 2013-03-01, modified: 2021-05-13
Published in Bulletin of the British Museum (Natural History). Geology., in 1973, in volume 23, issue 2, pages 103-175
Created: 2013-03-01, modified: 2021-05-13
Published in Bulletin of The African Bird Club, in 2003, in volume 10, issue 1, pages 30-32
Created: 2021-02-23, modified: 2021-02-23