Table 1 Parameters used to calibrate the divergence time analysis, using fossil data on BEAST2.
From: The evolutionary history of manatees told by their mitogenomes
Node placement | Specimen | Age (Ma) | Lognormal distribution parameters | References |
|---|---|---|---|---|
Afrotheria (A) | Ocepeia | 59.2–61.6 | Offset = 9.0, Mean = 61.6, SD = 0.25 | |
Macroscelidae-Afrosoricida (B) | Chambius | 40.4–55.8 | Offset = 2.0, Mean = 55.8, SD = 0.25 | |
Paenungulata (C) | Phosphatherium | 48.6–55.8 | Offset = 2.0, Mean = 55.8, SD = 0.25 | |
Sirenia (D) | Prorastomus sirenoides | 46.3–47.3 | Offset = 3.0, Mean = 47.3, SD = 0.15 | |
Proboscidea (F) | Eritreum melakeghebrekristosi | 26.8–27.0 | Offset = 4.5, Mean = 27.0, SD = 0.25 | |
Trichechus (G) | Trichechus sp. | 5.3–11.60 | Offset = 3.0, Mean = 11.6, SD = 0.7 |
