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An Upper Cretaceous ammonite bitten by a mosasaur

An Upper Cretaceous ammonite bitten by a mosasaurNo. 9193–248, 7 figs., 9 pls.
Kauffman, Erie G. and Kesling, Robert V. 1960. "An Upper Cretaceous ammonite bitten by a mosasaur." Contributions from the Museum of Paleontology, University Michigan, (9) 193–248, 7 figs., 9 pls.
ID: 135369
Type: article
Keywords: USNM; NMNH