Three new species of Cyathocrinites are described from the Laurel Limestone-Waldron Shale succession in southeastern Indiana. The paleoecology of the species is discussed in detail. All Silurian members of Cyathocrinites are reviewed and assigned to three new subgenera (Conicocyathocrinites, Rugosocyathocrinites, and Levicyathocrinites). A phylogeny of the Silurian cyathocrinitids is suggested Includes bibliographical references (p. 133-136) Three new species of Cyathocrinites are described from the Laurel Limestone-Waldron Shale succession in southeastern Indiana. The paleoecology of the species is discussed in detail. All Silurian members of Cyathocrinites are reviewed and assigned to three new subgenera (Conicocyathocrinites, Rugosocyathocrinites, and Levicyathocrinites). A phylogeny of the Silurian cyathocrinitids is suggested Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-)