1988
Broadwater [SE] Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr.
Broadwater SW Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr.
Courthouse Rock Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr.
Dalton Quadrangle, Morrill and Cheyenne Counties, Nebraska, Robert F. Diffendal Jr.
Fairchild Ranch Quadrangle, Morrill and Cheyenne Counties, Nebraska, Robert F. Diffendal Jr.
Horsehead Ranch Quadrangle, Morrill and Cheyenne Counties, Nebraska, Robert F. Diffendal Jr.
Lawrence Fork / Potter 2 NE Quadrangle, Nebraska—Banner, Morril, and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Lisco NW Quadrangle, Nebraska—Garden, Morrill, and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Mud Springs Quadrangle, Nebraska—Morrill and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Redington Quadrangle, Nebraska—Banner and Morrill Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
River Potholes: Modern and Ancient, Robert F. Diffendal Jr.
Singleton Ranch Quadrangle, Nebraska—Banner, Kimball, and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
1987
Paleohydrology of Some Ogallala (Neogene) Streams in the Southern Panhandle of Nebraska, R. G. Goodwin and Robert F. Diffendal Jr.
Duer Ranch, Morrill County, Nebraska: Contrast between Cenozoic Fluvial and Eolian Deposition, James B. Swinehart and R. F. Diffendal Jr.
1985
Overview of Nebraska and the Regional Aquifer from Proceedings of the 1985 Water Resources Seminar Series, Robert F. Diffendal Jr.
The Inapplicability of the Concept of the "Sidney Gravel" to the Ogallala Group (Late Tertiary) in Part of Southern Banner County, Nebraska, Robert F. Diffendal Jr.
New Evidence Supporting the Blancan Age of the Sand and Gravel Sequence Capping the Ash Hollow Formation, Garden, Keith, and Lincoln Counties, Nebraska, Robert F. Diffendal Jr., James W. Goeke, and Michael R. Voorhies
Keith County, Nebraska, Map Series, Robert F. Diffendal Jr., Mark S. Kuzila, J. R. Culver, Harold M. DeGraw, R. R. Burchett, M. P. Carlson, T. Eversoll, William D. Gosnold, and Nebraska Geological Survey
Characteristics, Age Relationships, and Regional Importance of Some Cenozoic Paleovalleys, Southern Nebraska Panhandle, Robert F. Diffendal Jr., James B. Swinehart, and J. J. Gottula
Cenozoic Paleogeography of Western Nebraska, James B. Swinehart, Vernon F. Souders, Harold M. DeGraw, and Robert F. Diffendal Jr.
Oligocene to Middle Miocene (White River and Arikaree Groups) Stratigraphy and Paleogeography of Western Nebraska, James B. Swinehart, Vernon F. Souders, H. M. DeGraw, and Robert F. Diffendal Jr.
Middle Miocene to Recent Stratigraphy and Paleogeography of Western Nebraska, James B. Swinehart, Vernon L. Souders, H. M. DeGraw, and Robert F. Diffendal Jr.
1984
Armored Mud Balls and Friable Sand Megaclasts from a Complex Early Pleistoceme Alluvial Fill, Southwestern Morrill County, Nebraska, Robert F. Diffendal Jr.
Comments on the Geologic History of the Ogallala Formation in the Southern Panhandle of Nebraska, Robert F. Diffendal Jr.
Evidence for Quaternary Piracy of Pumpkin Creek, South-Central Morrill County, Nebraska, Robert F. Diffendal
Evidence for Quaternary Piracy of Pumpkin Creek, South-Central Morrill County, Nebraska, Robert F. Diffendal Jr.
Further Comments on the Nature and Developmental History of Quaternary Pumpkin Creek, Banner, and Morrill Counties, Nebraska, Robert F. Diffendal Jr.
Cenozoic Geology of the Southern Nebraska Panhandle: Old Valleys, Volcaniclastics, and Vertebrates: 1984 Fall Field Trip, Nebraska Geological Society, James B. Swinehart, Robert F. Diffendal Jr., Mary Rebone, and Robert Hunt
1983
An Irvingtonian Fauna from the Oldest Quaternary Alluvium in Eastern Pumpkin Creek Valley, Morrill and Banner Counties, Nebraska, R. George Corner and Robert F. Diffendal Jr.
Megaclasts in Alluvial Fills from the Ogallala Group (Miocene), Banner, Kimball, and Morrill Counties, Nebraska, Robert F. Diffendal Jr.
Asymmetrical Distribution of Quaternary Alluvial Fills, Pumpkin Creek Drainage Basin, Western Nebraska, Robert F. Diffendal Jr. and R. George Corner
1982
Geometries and General Features of Some Cenozoic Valleys and Valley Fills, Western Nebraska, Robert F. Diffendal Jr.
Gully, Scour Hole, and Pothole Development at the Base of the Gering Formation (Miocene?), Southeastern Banner County, Nebraska, Robert F. Diffendal Jr.
Harrisburg Quadrangle, Banner County, Nebraska, Robert F. Diffendal Jr.
Regional Implications of the Geology of the Ogallala Group (Upper Tertiary) of Southwestern Morrill County, Nebraska, and Adjacent Areas, Robert F. Diffendal Jr.
1981
Review of Bartlett, Great Surveys of the American West, and Schubert, Vanguard of Expansion: Army Engineers in the Trans-Mississippi West, 1819-1879, Robert F. Diffendal Jr.
Gravity and Ground Magnetic Investigations in Eastern Nebraska, Robert F. Diffendal Jr. and R. R. Burchett
Gravity and Ground Magnetic Investigations in Eastern Nebraska, Robert F. Diffendal Jr. and R. R. Burchett
Geology of Lake McConaughy Area, Keith County, Nebraska, Roger K. Pabian, Robert F. Diffendal Jr., and Frankie Gould
1980
The Rush Creek-Lisco Structural Basin, Garden and Morrill Counties, Nebraska, R. F. Diffendal Jr.
Ash Hollow Historical Park, Robert F. Diffendal Jr.
Ash Hollow Historical Park, Robert F. Diffendal Jr.
The Rush Creek – Lisco Structural Basin, Garden and Morrill Counties, Nebraska, Robert F. Diffendal Jr.
1979
A Gering Formation (Miocene) Pumice Conglomerate and Associated Beds from Broadwater, Nebraska, Robert F. Diffendal Jr.
Broadwater NE Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr.
Broadwater NW Quadrangle, Morrill County, Nebraska, Robert F. Diffendal Jr.
1978
Brule SE Quadrangle, Keith and Perkins Counties, Nebraska, Robert F. Diffendal Jr.
Brule (SW) Quadrangle, Keith and Perkins Counties, Nebraska, Robert F. Diffendal Jr.
Glinn Ranch Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Green Ranch Quadrangle, Lincoln County, Nebraska, Robert F. Diffendal Jr.
Hershey West Quadrangle, Lincoln County, Nebraska, Robert F. Diffendal Jr.
Martin Quadrangle, Nebraska—Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Maxwell Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Nevens Quadrangle, Nebraska—Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Ogallala SW Quadrangle, Nebraska—Keith and Perkins Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Paxton North Quadrangle, Nebraska—Keith and Lincoln Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Sutherland Reservoir NW Quadrangle, Nebraska—Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
The Rush Creek Structure, Garden County, Nebraska, Robert F. Diffendal Jr.
1977
Barn Butte Quadrangle, Garden County, Nebraska, Robert F. Diffendal Jr.
Coumbe Bluff Quadrangle, Garden County, Nebraska, Robert F. Diffendal Jr.
Lisco Quadrangle, Nebraska—Garden and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Lisco SE Quadrangle, Nebraska—Garden and Cheyenne Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Oshkosh Quadrangle, Nebraska—Garden County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Oshkosh SW, Nebraska—Garden County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Preliminary Report on a Pleistocene Pond, Garden County, Nebraska, Robert F. Diffendal Jr.
Twin Buttes Quadrangle, Nebraska—Garden County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
1976
Big Springs NE Quadrangle, Garden and Deuel Counties, Nebraska, Robert F. Diffendal Jr.
Big Springs NW Quadrangle, Garden and Deuel Counties, Nebraska, Robert F. Diffendal Jr.
Keystone Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Lewellen Quadrangle, Nebraska--Garden County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Ruthton Quadrangle, Nebraska—Garden and Keith Counties, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
1975
Belmar Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Brule NE Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Brule NW Quadrangle, Keith County, Nebraska, Robert F. Diffendal Jr.
Lemoyne Quadrangle, Nebraska--Keith County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.
Microfossils from the Big Springs Limestone (Pennsylvanian) in Nebraska, Robert F. Diffendal Jr.
Ogallala Quadrangle, Nebraska-Keith County, 7.5 Minute Series (Topographic) [Annotated], Robert F. Diffendal Jr.
1974
Microfossils from the Upper Severy Shale (Pennsylvanian) Near Dubois, Nebraska, Robert F. Diffendal Jr.
1972
The Delaware Limestone (Middle Devonian) of Southwestern Ontario, Canada, Robert F. Diffendal Jr.
1971
The Biostratigraphy of the Delaware Limestone (Middle Devonian) of Southwestern Ontario, Robert F. Diffendal
THE BIOSTRATIGRAPHY OF THE DELAWARE LIMESTONE (MIDDLE DEVONIAN) OF SOUTHWESTERN ONTARIO, ROBERT FRANCIS DIFFENDAL
1964
Paleoecology of Pseudozaphentoides verticillatus (Barbour) in the Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.
Paleoecology of Pseudozaphentoides verticillatus (Barbour) in the Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.