Date of this Version
Schultz, C.B., E.C. Reed, and A.L. Lugn. 1951 The Red Cloud Sand and Gravel, a New Pleistocene Formation in Nebraska, Science, 114:547-549
Recent studies of the stratigraphy and paleontology of the Pleistocene of Nebraska have resulted in additional data that require further clarification and partial revision of the Grand Island sand and gravel formation (1,2) in order that there may be no condusion as the results of varying usage of the term.