Table 1.
Estimated divergence times from Beast for key nodes for testing biogeographic hypotheses
| Nodes | Not calibrated with ‘Callitris octothamna’ | ‘C. octothamna’ (calibration 10) at parent of Callitris stem node | ‘C. octothamna’ at Callitris stem node | ||
|---|---|---|---|---|---|
| Unconstrained | Constrained | Unconstrained | Constrained | Unconstrained | |
| A. Callitroideae–Cupressoideae | 127.0 (105–148) | 127.0 (106–150) | 139.7 (125–154) | 139.6 (126–156) | 148.4 (134–163) |
| B. Widdringtonia–(Diselma, Fitzroya) | 52.5 (41–66) | 52.3 (41–66) | 58.3 (45–73) | 58.7 (45–73) | 64.6 (47–82) |
| C. Diselma–Fitzroya | 32.8 (30–38) | 32.8 (30–38) | 33.2 (30–39) | 33.2 (31–39) | 33.5 (30–41) |
| D. Callitris NC–C. macleayana | 34.8 (25–46) | 35.3 (25–46) | 39.3 (28–50) | 39.4 (28–51) | 43.0 (31–56) |
| E. Pilgerodendron–Libocedrus | 15.6 (9–24) | 15.7 (9–24) | 17.3 (10–26) | 17.3 (10–27) | 18.5 (11–28) |
| F. CFDW stem | 87.2 (71–105) | 87.6 (71–105) | 103.0 (100–110) | 103.1 (100–110) | 113.0 (106–112) |
| G. Callitris crown | 41.6 (33–51) | 42.0 (33–52) | 46.9 (38–57) | 47.3 (38–57) | 51.5 (41–62) |
Node labels (A–G) refer to Fig. 1. Primary columns represent different calibration settings for ‘Callitris octothamna’, including its exclusion. Sub‐columns differ in whether monophyly of the CFDW–Libodedrus–Pilgerodendron clade was constrained, to the exclusion of Austrocedrus. All these results are from the combined cpDNA + nDNA dataset. The unconstrained topology reflects that from cpDNA alone and places Libocedrus + Pilgerodendron as sister to CFDW (Supporting Information Fig. S1). The constrained topology reflects that from nDNA alone (Fig. S2). Values are median age estimates in million yr ago (Ma) (95% HPD). NC, New Caledonia; CFDW, Callitris, Fitzroya, Diselma and Widdringtonia.