Table 1 Summary of evolutionary models
Name | Hypothesis | Description | Parameters |
|---|---|---|---|
BM | Passive | Brownian motion | σ², θroot |
BMtrend | Active trend | Brownian motion with a trend | σ², θroot, trend |
OU1 | Release and radiate | Rooted OU with single optima | σ², θroot, α, θopt |
RR | Single optimum | OU -> BM at Mammalia | σ²OU, σ²BM,θ, α |
OU2 | Mammal shift | OU->OU at Mammalia | σ², θNMS, θMam, α |
OU3A | Developmental shift | OU->OU->OU at Therapsida and Theria | σ², θNTS, θTherap,θTheria, α |
OU3B | Functional shift | OU->OU->OU at Cynodontia and Boreotheria | σ², θNCS, θCyn,θBoreo, α |
