Dating the fossil record worksheet
That fossil species may have been dated somewhere else, so you can match them and say that your fossil has a similar age.
However, like paleontology, the data for paleoanthropology is found mainly in the fossil record.
For a fossil to be a good index fossil, it needs to have lived during one specific time period, be easy to identify and have been abundant and found in many places. If you find ammonites in a rock in the South Island and also in a rock in the North Island, you can say that both rocks are Mesozoic.
Different species of ammonites lived at different times within the Mesozoic, so identifying a fossil species can help narrow down when a rock was formed.
This, the Fos Sahul database, includes 9,302 fossil records from 363 deposits, for a total of 478 species within 215 genera, of which 27 are from extinct and extant megafaunal species (2,559 records).
We also provide a rating of reliability of individual absolute age based on the dating protocols and association between the dated materials and the fossil remains.
Our proposed rating system identified 2,422 records with high-quality ages (i.e., a reduction of 74%).