Table 1 Mean Bayesian posterior estimates for basal placental and xenarthran divergence dates, and calibration points using different gene partitions. Molecular datings were calculated with MULTIDIVTIME 43 using the following gene partitions of the nuclear genes (ADRA2B, BRCA1, and VWF): ABV (1+2) = 1st and 2nd codon positions of the three genes (3421 sites); A2BV2 = 1 st and 2nd codon positions of VWF and ADRA2B plus all codon positions of BRCA1 (4350 sites); and ABV (1+2+3) = all codon positions of the three genes (5130 sites). Standard deviations (SD) and 95% credibility intervals (CredI) are indicated. Nodes are named and numbered as in Figures.
ABV (1+2) | A2BV2 | ABV (1+2+3) | ||||
|---|---|---|---|---|---|---|
Date ± SD | (95% CredI) | Date ± SD | (95% CredI) | Date ± SD | (95% CredI) | |
Placentalia | 102 ± 6 | (91 – 114) | 102 ± 6 | (92 – 115) | 107 ± 6 | (97 – 119) |
Xenarthra + Boreoeutheria | 99 ± 6 | (89 – 111) | 99 ± 5 | (90 – 111) | 103 ± 5 | (94 – 113) |
Boreoeutheria | 90 ± 5 | (82 – 99) | 90 ± 4 | (83 – 100) | 94 ± 4 | (87 – 103) |
Afrotheria | 80 ± 6 | (69 – 92) | 79 ± 6 | (69 – 92) | 82 ± 6 | (71 – 95) |
Euarchontoglires | 85 ± 5 | (77 – 94) | 85 ± 4 | (77 – 94) | 89 ± 4 | (81 – 100) |
Laurasiatheria | 81 ± 4 | (74 – 88) | 81 ± 3 | (75 – 88) | 83 ± 3 | (78 – 90) |
PAE (>54) | 69 ± 6 | (58 – 81) | 68 ± 6 | (58 – 80) | 69 ± 6 | (59 – 81) |
MUR (>12) | 15 ± 2 | (12 – 20) | 15 ± 2 | (12 – 21) | 15 ± 2 | (12 – 19) |
MEG (43 – 60) | 58 ± 1 | (55 – 60) | 59 ± 1 | (56 – 60) | 59 ± 1 | (57 – 60) |
PER (54 – 58) | 56 ± 1 | (54 – 58) | 56 ± 1 | (54 – 58) | 56 ± 1 | (54 – 58) |
ART (<65) | 63 ± 2 | (59 – 65) | 62 ± 2 | (59 – 65) | 62 ± 2 | (59 – 65) |
1. Euphractus / Zaedyus | 5 ± 2 | (2 – 8) | 5 ± 1 | (3 – 9) | 6 ± 1 | (3 – 9) |
2. Euphractinae | 5 ± 2 | (3 – 9) | 6 ± 2 | (3 – 9) | 6 ± 1 | (4 – 9) |
3. D. novemcinctus / D. kappleri | 6 ± 2 | (3 – 10) | 7 ± 2 | (4 – 12) | 7 ± 2 | (5 – 11) |
4. Myrmecophaga / Tamandua | 11 ± 2 | (7 – 16) | 10 ± 2 | (6 – 14) | 10 ± 2 | (7 – 14) |
5. Cabassous / Tolypeutes | 15 ± 3 | (10 – 22) | 18 ± 3 | (12 – 25) | 20 ± 3 | (15 – 27) |
6. Bradypus / Choloepus | 22 ± 4 | (15 – 30) | 23 ± 4 | (16 – 31) | 21 ± 3 | (15 – 28) |
7. Tolypeutinae | 17 ± 3 | (11 – 25) | 20 ± 4 | (14 – 27) | 22 ± 3 | (16 – 29) |
8. Tolypeutinae / Euphractinae | 27 ± 4 | (19 – 37) | 29 ± 4 | (21 – 39) | 33 ± 4 | (25 – 42) |
9. Myrmecophagidae | 41 ± 5 | (31 – 53) | 43 ± 5 | (33 – 53) | 40 ± 4 | (32 – 49) |
10. Dasypodidae | 35 ± 5 | (26 – 46) | 39 ± 5 | (29 – 49) | 40 ± 5 | (31 – 49) |
11. Pilosa | 56 ± 6 | (46 – 68) | 58 ± 5 | (48 – 69) | 55 ± 5 | (46 – 65) |
12. Xenarthra | 64 ± 6 | (53 – 76) | 68 ± 5 | (58 – 79) | 65 ± 5 | (55 – 75) |