Graptolites of New York

Graptolites of New York

Rudolf Ruedemann

1904

Letters of Walter Savage Landor, private and public

Walter Savage Landor

1899

The Llandovery graptolites of the English Lake District

Jana E. Hutt

1974

A bibliographic index of British graptolites (graptoloidea)

Isles Strachan

1996

Monograph of British Graptolites

Gertrude L. Elles

2015

Graptolites of North America

Rudolf Ruedemann

1947

A synoptic supplement to 'A monograph of British Graptolites by Miss G.L. Elles and Miss E.M.R. Wood'

Isles Strachan

1971

The Ordovician graptolites of Spitsbergen

R. A. Cooper

1982