Published in Annals of the Missouri Botanical Garden, in 2010, in volume 97, issue 3, pages 306-364

Created: 2024-06-28, modified: 2024-06-28

Published in Bulletin of the British Museum (Natural History). Geology., in 1949, in volume 1, issue 2, pages 25-48

Created: 2021-05-12, modified: 2021-05-12