Table 2.
Sensitivity tests of individual calibration nodes used for relaxed molecular clock time estimates of major molluscan groups. Table shows influence of single calibration points on node ages of all other calibration points.
| Excluded calibration point | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| None | Diversification of Mollusca | Split Serialia/Bivalvia | Origin of Cephalopoda | Split Polyplacophora/Monoplacophora | Origin of Pteriomorpha | Origin of Caenogastropoda | Diversification of Scaphopoda | Split Astarte/Cardita | Diversification of Polyplacophora | ||
| Calibrated nodes | Diversification of Mollusca | 551.02 | 683.50* | 550.58 | 549.76 | 551.52 | 551.55 | 551.59 | 551.68 | 552.10 | 551.72 |
| Split Serialia/Bivalvia | 530.93 | 533.98 | 523.58* | 530.80 | 530.88 | 530.36 | 530.82 | 531.01 | 530.82 | 531.01 | |
| Origin of Cephalopoda | 504.92 | 511.40 | 504.40 | 431.05* | 504.26 | 504.85 | 504.75 | 503.96 | 504.16 | 504.35 | |
| Split Polyplacophora/Monoplacophora | 493.06 | 493.44 | 491.79 | 493.68 | 431.68* | 493.47 | 493.13 | 493.47 | 493.79 | 493.14 | |
| Origin of Pteriomorpha | 475.06 | 474.81 | 474.20 | 474.43 | 474.97 | 376.65* | 474.56 | 475.20 | 474.16 | 474.82 | |
| Origin of Caenogastropoda | 421.49 | 422.82 | 421.77 | 421.91 | 422.61 | 421.54 | 326.50* | 421.95 | 420.85 | 421.61 | |
| Diversification of Scaphopoda | 359.95 | 360.02 | 359.97 | 359.55 | 360.12 | 359.59 | 359.37 | 382.50* | 359.19 | 359.60 | |
| Split Astarte/Cardita | 325.43 | 325.40 | 325.20 | 324.98 | 325.45 | 324.55 | 325.37 | 325.09 | 44.34* | 325.63 | |
| Diversification of Polyplacophora | 233.44 | 233.49 | 233.37 | 233.18 | 233.75 | 233.42 | 233.63 | 233.57 | 232.71 | 243.67* | |
Bold ages marked with an asterisk (∗) indicate time estimations without calibration of this node.