Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 1, pages 1-78

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 2, pages 79-107

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 111-124

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 125-129

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 131-144

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 145-188

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 189-194

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 195-212

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 213-224

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 225-241

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 3, pages 243-251

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 35, issue 4, pages 253-347

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 45-57

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 59-62

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 63-75

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 77-104

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 105-107

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 109-116

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 117-129

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 131-142

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 143-149

Published in Bulletin of the British Museum (Natural History). Geology., in 1981, in volume 36, issue 2, pages 151-155