Robert J. Elias

• Latest Ordovician solitary rugose corals of eastern North America
• Middle and Late Ordovician solitary rugose corals of the Cincinnati Arch region
• Solitary rugose corals of the Selkirk member, red river formation (late middle or upper Ordovician), Southern Manitoba
• Solitary rugose corals of the Upper Ordovician Montoya group, southern New Mexico and westernmost Texas
• The American Music Teacher