Phanerozoic II: Mesozoic / Cenozoic is the ninth studio album by German progressive metal band The Ocean. It was released on 25 September 2020 and is the second part of a concept album series exploring the Phanerozoic geological eon, the first part being Phanerozoic I: Palaeozoic, which was released in 2018. The first two track titles each reference a period of the Mesozoic era, whereas the remaining six each reference a period of the Cenozoic era.