Lumbar vertebra (Basilotritus sp.) Collection number ОФ-1694 (Paleontological Museum, National Natural History Museum of the Academy of Sciences of Ukraine, Kiev, Ukraine). Found in brickworks quarry (depth 100 m). Scanned with Artec Eva.
Read about it here: https://www.researchgate.net/publication/313647844_New_materials_of_%27Eocetus%27_sp_Mammalia_Cetacea_from_the_Eocene_of_Ukraine_in_Russian