Bibliographic and faunal index of Paleozoic pelmatozoan echinodermsRay S. Bassler · First published 1943Open the Tome
Bibliographic index of American Ordovician and Silurian fossils ..Ray S. Bassler · First published 1915Open the Tome
The early Paleozoic Bryozoa of the Baltic provincesRay S. Bassler · First published 1911Open the Tome
... Dendroid graptolites of the Niagaran dolomites at Hamilton, OntarioRay S. Bassler · First published 1909Open the Tome
A study of the James types of Ordovician and Silurian BryozoaRay S. Bassler · First published 1906Open the Tome
