NEWSCIENTIST | fossils
Huge fossil bonanza preserves 512-million-year-old ecosystem
巨大化石宝藏保存了5.12亿年前的生态系统
2026-01-28 745词 中等
But this flourishing came to a halt with the Sinsk event around 513.5 million years ago, when oxygen levels in the ocean fell, killing off several groups of animals.
免责声明：本文来自网络公开资料，仅供学习交流，其观点和倾向不代表本站立场。