The history of the Earth and the history of life on Earth.
The answer is the fossil record :D
A fossil is any record of an organism preserved in rock, whether it be igneous, sedimentary, or metamorphic. Nearly all fossils are discovered in sedimentary rock.
Fossil record
Gaps in the fossil record/ rock layers because of erosion in the soil.
The fossil record is incomplete because not all organisms fossilize, and not all fossils are found or preserved. Fossilization depends on specific conditions such as rapid burial and mineralization. Therefore, the fossil record only represents a small fraction of the organisms that lived in the past.
The transition of phyla of organisms over time. That is the great strength of the fossil record; evolution shown in the sedimentary rock.
The earliest record of mammals comes from sedimentary rock. Sedimentary rocks are deposited in layers. They are an important source of natural resources, such as coal, fossil fuel, and ore.
The fossil record organizes fos- sils by their estimated ages and physical similarities.
The fossil record organizes fos- sils by their estimated ages and physical similarities.
The trilobite species Eldredgeops rana is a common New York State index fossil found in Devonian rock layers. If a rock layer containing this index fossil is missing due to unconformity, it suggests a gap in the rock record where deposition ceased, erosion occurred, and then new sediment layers were deposited on top.
You need to clean the same fossil rock a couple of times and then it immediately donates the fossil rock
A trace fossil is one that merely indicates that an organism left evidence of its existence. Some examples would be burrows or footprints that appear in sedimentary rock. An index fossil is of an organism that dates to a particular time in the geologic record, the organism only appearing in a certain segment of that record. Index fossils are indicators of the age of the rock in which they are found.