The fossil record organizes fos- sils by their estimated ages and physical similarities.
The answer is the fossil record :D
The fossil record organizes fos- sils by their estimated ages and physical similarities.
The age of the oldest fossil on record is about 3.5 billion years old.
A fossil record is a historical sequence of life indicated by fossils found in layers of Earth's crust.
Paleontologists look for index fossils in fossil bearing sedimentary rock. Index fossils are organisms that were widespread, rapidly evolving, and only existed for a short period of time as evidenced by their appearance in the fossil record of specific rock strata. The appearance of a fossil alongside an index fossil gives a rough approximation of the age of the fossil in relative terms as it would appear on the geologic time scale. The appearance of the same fossil alongside index fossils of different geologic ages means that the fossil organism spanned multiple geologic time periods. Associations of specific strata alongside radiographically datable igneous and metamorphic rock determines the absolute age of a fossil.
A palaeorecord is a geological record, especially a fossil record.
The fossil record is incomplete.
The Equus genus first appeared in the fossil record around 4 million years ago during the Pliocene epoch.
a record that shows how fossils have changed over time
Darwin believed that the fossil record illustrated the development of new and distinct species over time.
The fossils of the oldest life forms can be found in the Precambrian period of the fossil record.
dinosaur footprints