The article “An Oldest Record of the Shark Cosmopolitodus planus (Lamnidae) from the Lower Miocene of the Sakhalin, Russia,” written by T. P. Malyshkina, M. V. Nazarkin, and A. V. Solovyow, was originally published Online First in Springer-Link on December 29, 2023 without Open Access. After publication, the authors decided to make the article an Open Access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2024 and the article is forthwith distributed under the terms of a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/, CC BY), which permits use, duplication, adaptation, distribution and reproduction of a work in any medium or format, as long as you cite the original author(s) and publication source, provide a link to the Creative Commons license, and indicate if changes were made.