Fig. 3 in The anatomy of the Late Miocene baleen whale Cetotherium riabinini from Ukraine

Fig. 3. Comparison of the distal surface of the composite posterior process of the tympanoperiotic in posterolateral view in two cetotheriid baleen whales. A. Cetotherium riabinini Hofstein, 1948, Late Miocene of Nikolaev, Ukraine, NMNH-P 668/1. Photograph (A1), explanatory drawing (A2). B. Cetotherium rathkii Brandt, 1843, south coast of Taman Peninsula, Tortonian, Late Miocene, PIN 1840/1; inverted.