Robinson, W.I., 1915, Two new fresh-water gastropods from the Mesozoic of Arizona: American Journal of Science, 4th ser., v. 40, no. 240, p. 649-657. Authors Robinson, W.I. Publication Date 1915 Citation American Journal of Science, 4th ser., v. 40, no. 240, p. 649-657. State AZ Province CP County CN Placenames Painted Desert Keywords Paleontology Invertebrate More Keywords Paleontology, Invertebrate, Chinle Fm - Triassic, AzGeoBib RefNum 13680