At the Top of the Grand StaircaseAlan L. Titus, Mark A. Loewen, L. Barry Albright, Michael A. Arthur, Richard Barclay · First published 2013Open the Tome
Mid-carboniferous ammonoid biostratigraphy, southern Nye County, NevadaAlan L. Titus · First published 2001Open the Tome
Late Mississippian (Arnsbergian Stage-E₂ Chronozone) ammonoid paleontology and biostratigraphy of the Antler Foreland Basin, California, Nevada, UtahAlan L. Titus · First published 2000Open the Tome
