TY - RPRT TI - Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the Western Interior of the United States AU - W. A. Cobban PY - 1988 DO - 10.3133/pp1473 UR - https://pubs.usgs.gov/publication/pp1473 ID - pp1473 ER -