1985
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
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, 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, 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
MIDDLE MIOCENE TO RECENT STRATIGRAPHY AND PALEOGEOGRAPHY OF WESTERN NEBRASKA, James B. Swinehart, Vernon L. Souders, H. M. DeGraw, and Robert F. Diffendal
1984
ARMORED MUD BALLS AND FRIABLE SAND MEGACLASTS FROM A COMPLEX EARLY PLEISTOCENE ALLUVIAL FILL, SOUTHWESTERN MORRILL COUNTY, NEBRASKA, R. F. Diffendal
COMMENTS ON THE GEOLOGIC HISTORY OF THE OGALLALA FORMATION IN THE SOUTHERN PANHANDLE OF NEBRASKA, Robert F. Diffendal
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
FURTHER COMMENTS ON THE NATURE AND DEVELOPMENTAL HISTORY OF QUATERNARY PUMPKIN CREEK, BANNER AND MORRILL COUNTIES, NEBRASKA, Robert F. Diffendal
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.
Asymmetrical Distribution of Quaternary Alluvial Fills, Pumpkin Creek Drainage Basin, Western Nebraska, R. F. Diffendal Jr. and R. George Corner
Megaclasts in alluvial fills from the Ogallala Group (Miocene), Banner, Kimball, and Morrill counties, Nebraska, Robert Diffendal Jr.
1982
Regional Implications of the Geology of the Ogallala Group (Upper Tertiary) of Southwestern Morrill County, Nebraska, and Adjacent Areas, R. F. Diffendal Jr.
Harrisburg Quadrangle, Banner County, Nebraska, Robert Diffendal Jr.
GEOMETRIES AND GENERAL FEATURES OF SOME CENOZOIC VALLEYS AND VALLEY FILLS, WESTERN NEBRASKA, Robert F. Diffendal
Gully, Scour Hole, and Pothole Development at the Base of the Gering Formation (Miocene?), Southeastern Banner County, Nebraska, 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, and Frankie Gould
1980
The Rush Creek-Lisco Structural Basin, Garden and Morrill Counties, Nebraska, R. F. Diffendal Jr.
Ash Hollow Historical Park, Robert Diffendal Jr.
The Rush Creek – Lisco Structural Basin, Garden and Morrill Counties, Nebraska, Robert F. Diffendal
1979
Broadwater NW Quadrangle, Morrill County, Nebraska, Robert Diffendal, Jr.
Broadwater NE Quadrangle, Morrill County, Nebraska, Robert Diffendal Jr.
A GERING FORMATION (MIOCENE) PUMICE CONGLOMERATE AND ASSOCIATED BEDS FROM BROADWATER, NEBRASKA, Robert F. Diffendal
1978
Glinn Ranch Quadrangle, Keith County, Nebraska, Robert Diffendal Jr.
Green Ranch Quadrangle, Lincoln County, Nebraska, Robert Diffendal Jr.
Hershey West Quadrangle, Lincoln County, Nebraska, Robert Diffendal Jr.
Martin Quadrangle, Nebraska—Keith Co., Robert Diffendal
Maxwell Quadrangle, Nebraska—Lincoln Co., Robert Diffendal
Nevens Quadrangle, Nebraska—Keith Co., Robert Diffendal
Ogallala SW Quadrangle, Nebraska—Keith Co.--Perkins Co., Robert Diffendal
Paxton North Quadrangle, Nebraska—Keith & Lincoln Co. 7.5 minute series (topographic), Robert Diffendal
Sutherland Reservoir NW Quadrangle, Nebraska— Lincoln Co. 7.5 minute series (topographic), Robert Diffendal
Brule SE Quadrangle, Keith & Perkins Counties, Nebraska, Robert F. Diffendal
Brule (SW) Quadrangle, Keith & Perkins Counties, Nebraska, Robert F. Diffendal
THE RUSH CREEK STRUCTURE, GARDEN COUNTY, NEBRASKA, Robert F. Diffendal
1977
Barn Butte Quadrangle, Garden County, Nebraska, Robert Diffendal Jr.
Lisco Quadrangle, Nebraska—Garden-Cheyenne Co., Robert Diffendal
Lisco SE Quadrangle, Nebraska—Garden-Cheyenne Co., Robert Diffendal
Oshkosh Quadrangle, Nebraska—Garden Co. 7.5 minute series (topographic), Robert Diffendal
Oshkosh SW, Nebraska—Garden Co. 7.5 minute series (topographic), Robert Diffendal
Twin Buttes Quadrangle, Nebraska— Garden Co. 7.5 minute series (topographic), Robert Diffendal
Coumbe Bluff Quadrangle, Garden County, Nebraska, Robert F. Diffendal
PRELIMINARY REPORT ON A PLEISTOCENE POND, GARDEN COUNTY, NEBRASKA, Robert F. Diffendal
1976
Big Springs NE Quadrangle, Garden & Deuel Counties, Nebraska, Robert Diffendal Jr.
Big Springs NW Quadrangle, Garden & Deuel Counties, Nebraska, Robert Diffendal Jr.
Lewellen Quadrangle, Nebraska--Garden Co., Robert Diffendal
Ruthton Quadrangle, Nebraska— Garden & Keith Co. 7.5 minute series (topographic), Robert Diffendal
Keystone Quadrangle, Keith County, Nebraska, Robert F. Diffendal
1975
Belmar Quadrangle, Keith County, Nebraska, Robert Diffendal Jr.
Lemoyne Quadrangle, Nebraska--Keith Co., Robert Diffendal
Brule NE Quadrangle, Keith County, Nebraska, Robert F. Diffendal
Brule NW Quadrangle, Keith County, Nebraska, Robert F. Diffendal
Microfossils from the Big Springs Limestone (Pennsylvanian) in Nebraska, Robert F. Diffendal
Ogallala Quadrangle, Nebraska-Keith Co. 7.5 Minute Series (Topographic) [Annotated], Robert F. Diffendal Jr.
1974
MICROFOSSILS FROM THE UPPER SEVERY SHALE (PENNSYLVANIAN) NEAR DUBOIS, NEBRASKA, Robert F. Diffendal
1972
THE DELAWARE LIMESTONE (MIDDLE DEVONIAN) OF SOUTHWESTERN ONTARIO, CANADA, Robert F. Diffendal
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.