Published in Palaeontology, in 1981, in volume 24, issue 1, pages 1-23

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 25-84

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 85-92

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 93-113

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 115-145

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 147-183

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 185-194

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 195-202

Published in Palaeontology, in 1981, in volume 24, issue 1, pages 203-229

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 231-250

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 251-311

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 313-341

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 343-378

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 379-390

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 391-416

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 417-435

Published in Palaeontology, in 1981, in volume 24, issue 2, pages 437-441

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 443-481

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 483-492

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 493-506

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 507-536

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 537-553

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 555-588

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 589-608

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 609-646

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 647-653

Published in Palaeontology, in 1981, in volume 24, issue 3, pages 655-660

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 661-694

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 695-731

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 733-758

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 759-778

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 779-801

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 803-825

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 827-861

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 863-875

Published in Palaeontology, in 1981, in volume 24, issue 4, pages 877-890