Published in Palaeontology, in 1971, in volume 14, issue 3, pages 423-430

Created: 2016-04-23, modified: 2016-04-23

Published in Palaeontology, in 1970, in volume 13, issue 3, pages 491-502

Created: 2016-04-23, modified: 2016-04-23

Published in Palaeontology, in 1982, in volume 25, issue 4, pages 857-867

Created: 2016-04-23, modified: 2016-04-23