There is a well-developed sedimentary structure with a variety of fossils.
A number of biologically-created sedimentary structures exist, called trace fossils.
Evidence for the dating is provided by the sedimentary structures and the type of fossils found within the rocks which are well preserved.
Hummocky cross-stratification is a type of sedimentary structure found in sandstones.
These sedimentary structures are not common because they require the current to be equal in both directions, which rarely happens in nature.
This type of sedimentary structure is called flaser bedding.
Up to 1974 dish structure was still regarded as a primary sedimentary structure.
As a result, the two categories often contain the same sedimentary structures.
This process can destroy sedimentary structures that were present upon deposition of the sediment.
A variety of sedimentary structures have been reported from the Bass Formation.