The Continuing Debate on Deep Molluscan Phylogeny: Evidence for Serialia (Mollusca, Monoplacophora + Polyplacophora)
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.
