Table 5.
Number of Different Genomes | Class | Number of Genera by Class | Number of Species by Class |
347 | Actinopterygii | 18 | 108 |
Amphibia | 7 | 54 | |
Aves | 2 | 7 | |
Mammalia | 14 | 36 | |
Reptilia | 4 | 20 |
Note.—Table describes taxonomic classification for the second vertebrate genomic data set, used to estimate gene-specific nonsynonymous and synonymous substitution rates (for details, see text).