Biostratigraphy of the early Middle Pleistocene of the Southern Fore-Urals

At the end of this period during the Chusovskoi timespan, the herbaceous-Artemisia-Chenopodiaceae steppes, which covered spacious open areas, were subsequently replaced by coniferous-birch forests with an admixture of broadleaved trees. Fossil remains are rare. Ostracods represent cold-resistant species indicating that the climate was cold.