Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the western interior of the United States / by William A. Cobban.
Published
[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, 1988.
Physical Description
iv, 30 p., [20] p. of plates : ill., maps ; 29 cm.