据介绍，尽管元古代真核生物化石，对理解早期地球的宏观演化模式和动力学具有根本重要性，但其全球多样性的量化程度很低。
研究人员根据全面的数据汇编和定量分析，报告了古元古代到早寒武世化石真核生物多样性的新构建。由此产生的分类丰富度曲线证实了，元古代冰川是区分“无聊十亿年”和埃迪卡拉纪的主要分水岭，前者的特点是长期停滞，而后者的特点是多样性更强、更快速的周转以及多次辐射和灭绝。
这些对比鲜明的演化模式和动力学，为检验元古代生物圈和岩石圈共同演化的竞争假说提供了一个框架。
附：英文原文
Title: Quantifying the global biodiversity of Proterozoic eukaryotes
Author: Qing Tang, Wentao Zheng, Shuhan Zhang, Junxuan Fan, Leigh Anne Riedman, Xudong Hou, A. D. Muscente, Natalia Bykova, Peter M. Sadler, Xiangdong Wang, Feifei Zhang, Xunlai Yuan, Chuanming Zhou, Bin Wan, Ke Pang, Qing Ouyang, N. Ryan McKenzie, Guochun Zhao, Shuzhong Shen, Shuhai Xiao
Issue&Volume: 2024-12-20
Abstract: The global diversity of Proterozoic eukaryote fossils is poorly quantified despite its fundamental importance to the understanding of macroevolutionary patterns and dynamics on the early Earth. Here we report a new construction of fossil eukaryote diversity from the Paleoproterozoic to early Cambrian based on a comprehensive data compilation and quantitative analyses. The resulting taxonomic richness curve verifies Cryogenian glaciations as a major divide that separates the “Boring Billion” and Ediacaran periods, with the former characterized by a prolonged stasis, and the latter by greater diversity, more-rapid turnover, and multiple radiations and extinctions. These contrasting evolutionary patterns and dynamics provide a framework to test competing hypotheses on biosphere and geosphere coevolution in the Proterozoic Eon.
DOI: adm9137
Source: https://www.science.org/doi/10.1126/science.adm9137