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Summary of subjects of review-like articles published from 2007 to 2013 on the proper use of molecular clock calibrations.
| Calibration type focus | # discussions |
|---|---|
| Fossil | 29 |
| Geological event | 16 |
| Sampling date | 5 |
| Secondary calibration | 3 |
| Substitution rate | 16 |
| Taxonomic group focus | # discussions |
| General | 25 (18 examples: 10 vertebrate, 3 invertebrate, 5 plant) |
| Vertebrate | 25 |
| Invertebrate | 11 |
| Plant | 3 |
| Virus | 2 |
| Protist | 1 |
| Fungus | 4 |
| Bacteria | 1 |
