Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.Wheeler, William Morton, 1865-1937.Rohwer, S. A. (Sievert Allen), 1887-1951.Florissant Expeditions (1906-1908)2005-10-062005-10-061906http://hdl.handle.net/2246/1720p. 499-501 : ill. ; 24 cm.Includes bibliographical references.4019035 bytesapplication/pdfen-USQH1 .A4 vol.22, art.30, 1906Sawflies, Fossil -- Colorado -- Florissant Region.Insects, Fossil -- Colorado -- Florissant Region.Paleontology -- Tertiary -- Colorado -- Florissant Region.Paleontology -- Colorado -- Florissant Region.text