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.
Regarded as the most promising Russian astronomer of his time, Kozyrev fell victim to the Stalinist purges, spending 10 years in Gulags.
As a result of his imprisonment he was mentioned in The Gulag Archipelago by Alexandr Solzhenitsyn.