Sponges from the Reef Trail Member of the Upper Guadalupian (Permian) Bell Canyon Formation, Guadalupe Mountains National Park, Texas by Rigby, J. Keith, Bell, Gorden L.

Ordovician sphinctozoan sponges from the Eastern Klamath Mountains, Northern California by Rigby, J. Keith, Potter, A. W.

Historical geology of North America by Petersen, Morris S., Rigby, J. Keith, Hintze, Lehi F.

Upper Permian inozoid, demospongid, and hexactinellid sponges from Djebel Tebaga, Tunisia by Rigby, J. Keith, Senowbari-Daryan, Baba

Lower and middle ordovician lithistid demosponges from the Mingan Islands, Gulf of St. Lawrence, Quebec, Canada by Rigby, J. Keith, Desrochers, Andre

Middle Silurian, Ludlovian and Wenlockian sponges from Baillie-Hamilton and Cornwallis Islands, Arctic Canada by Rigby, J. Keith 1926-2012, Chatterton, Brian 1943-

Middle Silurian Ludlovian and Wenlockian sponges from Baillie-Hamilton and Cornwallis Islands, arctic Canada by Rigby, J. Keith 1926-2012, Chatterton, Brian 1943-

Late Devonian sponges of western Australia by Rigby, J. Keith

Get full text

A new subfamily, Conacodontinae, and new species, Conacodon kohlbergeri, of the Periptychidae (Condylarthra, Mammalia) by Archibald, J. D., Schoch, Robert M. 1957-, Rigby, J. Keith 1926-2012

Southern Colorado Plateau field guide by Rigby, J. Keith 1926-2012

Indexes
Indexes

Geologic guide to the Northwestern Colorado Plateau by Rigby, J. Keith, Hintze, Lehi F., Welsh, Stanley L.

New Archaeoscyphia (Porifera) from the Ordovician of Anticosti Island, Quebec by Rigby, J. Keith, Nitecki, Matthew H.

Annotated bibliography of Lower Paleozoic sponges of North America by Rigby, J. Keith, Nitecki, Matthew H.

Ordovician polyplacophora (mollusca) from North America by Rigby, J. Keith, Bell, Gorden L.

Silurian (Wenlock) demosponges from the Avalanche Lake area of the Mackenzie Mountains, southwestern District of Mackenzie, Northwest Territories, Canada by Rigby, J. Keith 1926-2012, Chatterton, Brian 1943-

Interpreting Earth history a manual in historical geology by Petersen, Morris S., Rigby, J. Keith

Late Ordovician sponges from the Malongulli Formation of central New South Wales, Australia by Rigby, J. Keith, Webby, Barry D.

Sponges of the Burgess shale (Middle Cambrian), British Columbia by Rigby, J. Keith

The Tertiary sponges Aphrocallistes and Eurete from western Washington and Oregon by Rigby, J. Keith, Jenkins, David E.

Northern Colorado Plateau field guide by Rigby, J. Keith 1926-2012

Indexes