The Bibliographic Index of American Ordovician and Silurian Fossils V2 (1915) is a reference book compiled by Ray S. Bassler. The book provides a comprehensive list of literature references for fossils found in the Ordovician and Silurian periods in North America. It covers a wide range of topics, including taxonomy, morphology, stratigraphy, paleoecology, and more. The book is organized by taxonomic group and includes an index of authors, making...