Authors Year Title
Elias 1938 Studies of Late Paleozoic ammonoids.
Journal of Paleontology, 12 (1): 86-100, pl.19,20; Tulsa,Oklahoma.
Elias 1952 New data on Dinantian-Namurian equivalents in America.
Compte Rendu, Congrès International de Stratigraphie et de Géologie Carbonifère., 3, Heerlen 1951, 1: 189-201, fig.1-2; Heerlen.
Elias 1956 Upper Mississippian and Lower Pennsylvanian Formations of south-central Oklahoma. In: Petroleum geology of southern Oklahoma. Volume 1.
American Association of  Petroleum Geologists, 1956: 56-134, 2 fig., 4 tab., 6 pl.; Tulsa, Okla.
Elias 1962 Differentiation of species in Gonioloboceras.
Paläontologische Zeitschrift, H.Schmidt-Festband: 29-37, pl.3,4; Stuttgart.