Table 1. Likelihoods obtained by comparing total range size cumulative curves to three different theoretical curves corresponding to the linear, sigmoid, and generalized logistic models.
| Clade | linear | sigmoid | generalized logistic | best model |
|---|---|---|---|---|
| Desmoceratidae | 2.337 | 7.935 | 8.082 | generalized logistic |
| Auloporida | 2.422 | 7.695 | 7.240 | sigmoid |
| Cystiphyllida | 2.296 | 7.724 | 7.121 | sigmoid |
| Favositida | 2.577 | 9.402 | 8.504 | sigmoid |
| Stauriida | 2.799 | 9.899 | 9.477 | generalized logistic |
| Pterineidae | 2.321 | 6.510 | 7.065 | sigmoid |
| Athyridida | 2.697 | 8.800 | 9.365 | generalized logistic |
| Orthida | 2.675 | 8.743 | 9.327 | generalized logistic |
| Orthotetida | 2.579 | 9.356 | 8.954 | sigmoid |
| Productida | 2.586 | 8.839 | 9.360 | generalized logistic |
| Spiriferida | 2.581 | 8.996 | 9.512 | generalized logistic |
| Spiriferinida | 2.655 | 9.684 | 9.087 | sigmoid |
| Strophomenida | 2.397 | 9.263 | 8.444 | sigmoid |
| Cystoporida | 2.393 | 8.439 | 7.355 | sigmoid |
| Fenestrida | 2.347 | 8.396 | 7.607 | sigmoid |
| Rhabdomesida | 2.325 | 5.947 | 6.731 | sigmoid |
| Trepostomida | 2.446 | 8.260 | 8.032 | sigmoid |
| Bellerophontidae | 2.272 | 8.186 | 7.975 | sigmoid |
| Euomphalidae | 2.252 | 6.749 | 7.569 | sigmoid |
| Lophospiridae | 2.328 | 8.773 | 7.845 | generalized logistic |
| Proetidae | 2.289 | 7.344 | 8.113 | sigmoid |
Comparisons were made by means of maximum likelihood estimation. Log-likelihoods are reported. The last column indicates the best fitting model based on AICc.