This is an eroded crater formation, although most of the outer rim remains well-defined. There is a small, slightly skewed crater laid across the north-northwestern rim. Attached to the southeast of this feature in the northern part of Kozyrev's interior floor is a smaller, bowl-shaped crater. The remainder of the interior is marked only by tiny craterlets. The inner wall is slightly wider along the eastern side than elsewhere.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID122125855.