Modern stromatolites composed of thermophilic cyanobacteria in Yellow Stone National Park由嗜热蓝细菌形成的现 代叠层石 (d) 2012 Pearson Education,Inc. about 2 cm highModern stromatolites composed of thermophilic cyanobacteria in Yellow Stone National Park 由嗜热蓝细菌形成的现 代叠层石 about 2 cm high