Concretions and cross-bedded sandstone, NebraskaSeptember 19, 2022/in /by Geology Pics sedimentary structures, Tertiary https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Geology Pics https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Geology Pics2022-09-19 23:11:002025-06-22 03:23:51Concretions and cross-bedded sandstone, Nebraska
