Table 2.
Mapping of fossil characters to guide calibration placement on the molecular phylogeny: proportional likelihoods at candidate nodes
| Characters and states | Tree: Austrocedrus in | Tree: Austrocedrus out | ||||
|---|---|---|---|---|---|---|
| Node B (CFDW stem) | Node A (Callitris stem) | Callitris crown | Node B (CFDW stem) | Node A (Callitris stem) | Callitris crown | |
| Phyllotaxis ternate | 0.03 | 0.51* | 1.00* | 0.03 | 0.33* | 1.00* |
| Phyllotaxis decussate | 0.96* | 0.48* | 0.00 | 0.97* | 0.65* | 0.00 |
| Leaves monomorphic | 0.16 | 0.85 | 1.00* | 0.20 | 0.85 | 1.00* |
| Leaves dimorphic | 0.83 | 0.14 | 0.00 | 0.80 | 0.15 | 0.00 |
| Cone‐scales two whorls of three | 0.02 | 0.26* | 1.00* | 0.01 | 0.16* | 1.00* |
| Cone‐scales decussate | 0.98* | 0.74* | 0.00 | 0.99* | 0.84* | 0.00 |
Proportional likelihoods under the Mk1 model (Lewis, 2001) were sampled at candidate nodes on alternative topologies: (a) with Austrocedrus sister to the CFDW clade (‘Austrocedrus in’), as supported by cpDNA and the combined data, and (b) with Libocedrus + Pilgerodendron constrained to be sister to CFDW (‘Austrocedrus out’), as supported by the nDNA alone. For each character, the plesiomorphic (ancestral) state is listed after the derived state. The transition between the plesiomorphic and derived state for each character is reconstructed as occurring between node B and the Callitris crown node, possibly in the Callitris stem (node A). The node labels refer to Supporting Information Figs S4–S6. CFDW, Callitris, Fitzroya, Diselma and Widdringtonia.
*States judged ‘best’ (likelihoods are not significantly different at that node if both states are asterisked).