i don't rly understand
Number of Unique Fossils:
Rock Layer 1 (oldest): Not specified in the table.
Rock Layer 2: Not specified in the table.
Rock Layer 3 (middle layer): Not specified in the table.
Rock Layer 4 (second to top layer): Not specified in the table.
Rock Layer 5 (newest): Not specified in the table.
Relative Complexity of Fossils:
The table header mentions "Relative complexity (which are the most simple or complex)" but doesn't provide any specific examples or details about the complexity in the table.
Overall Observation:
The table doesn't provide any data regarding the number of unique fossils or their relative complexity in each rock layer.