Fishes of the families Evermannellidae and Scopelarchidae : systmatics, morphology, interrelationships, and zoogeography / Robert Karl Johnson.

n.s. no.12(1982)

A new specimen of Desmatochelys lowi Williston; a primitive cheloniid sea turtle from the Cretaceous of South Dakota / Rainer Zangerl -- and Robert E. Sloan --.

v.14:no.2(1960)

Two new species of Broiliellus (Amphibians) from the Permian of Texas / Robert E. De Mar --

v.16:no.5(1967)

A reconstruction of the shield of the arthrodire, Bryantolepis brachycephalus (Bryant) / Robert H. Denison --

v.14:no.6(1962)

Longiscitula houghae; a new genus of dissorophid amphibian from the Permian of Texas / Robert E. DeMar, Asst. Professor of Geology, University of Illinois, Chicago Circle Campus.

v.16:no.2(1966)

The structure and evolution of teeth in lungfishes / [by] Robert H. Denison --.

v.33:no.3(1974)

Mineral assemblages and the chemical history of chondritic meteorites / [by] Robert F. Mueller -- and Edward J. Olsen --.

v.16:no.15(1969)

Middle Devonian fishes from the Lemhi Range of Idaho / [by] Robert H. Denison --

v.16:no.10(1968)

Cardipeltis; an early Devonian agnathan of the order Heterostraci / Robert H. Denison.

v.16:no.4(1966)

The phylogenetic and functional implications of the armor of the Dissorophidae / Robert E. DeMar --

v.16:no.3(1966)

The sponges / by Robert von Lendenfeld.

v.42 (1915) text

Relationships of pocket gophers of the genus Geomys from the Central and Northern Great Plains / by Lawrence R. Heaney and Robert M. Timm.

no.74 (1983)