Upper Aeronian and Lower Telychian (Llandovery) graptolites from western mid-Wales
By: David K. Loydell
Series: Monograph of the Palaeontographical Society; Publication -- no. 589, 592; Publication (Palaeontographical Society (Great Britain)) -- no. 589, etc
Publisher: Palaeontographical Society
Published: 1992
Place of publication: London
Language: eng
Subjects: Graptolites -- Wales; Geology, Stratigraphic -- Silurian
Notes: "Issued as part of volume 146 for 1992"--Pt. 1, verso of t.p

Includes bibliographical references