Proterozoic armored mudballs, MontanaAugust 31, 2024/in /by Marli Miller sedimentary, rip-up clasts https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2024-08-31 04:46:332024-08-31 04:47:50Proterozoic armored mudballs, Montana