This dataset is a port of Sepkoski's (2002) published compendium of fossil marine animal genera. This version of the dataset was pulled from Shanan Peters' online database. No changes have been made to any taxonomic names. However, first and last appearance intervals have been updated to stages from the International Geological Time Scale 2022. In updating interval names, some interpretation was required. The interval_table dataset documents the linked interval names.
Format
A data.frame with 35826 rows and 9 variables:
- phylum
A character denoting the phylum of the taxon.
- class
A character denoting the class of the taxon.
- order
A character denoting the order of the taxon.
- genus
A character denoting the genus of the taxon.
- fauna
A character denoting the great evolutionary fauna type of the taxon.
- interval_max
A character denoting the interval of first occurrence.
- interval_min
A character denoting the interval of last occurrence.
- max_ma
A numeric denoting the interval age of first occurrence.
- min_ma
A numeric denoting the interval age of last occurrence.
Source
Shanan Peter's 'Sepkoski's Online Genus Database': http://strata.geology.wisc.edu/jack/.