Table 2.

Estimates generated from each molecular clock model. Estimates include tMRCA of the whole phylogeny, tMRCA of the Netherlands and Denmark clades, and the evolutionary rates (substitution/site/year) estimated for the whole phylogeny and the Netherlands and Denmark foreground evolutionary rates. The mean value is reported in each case and the 95 per cent HPD is shown in brackets.

Model	tMRCA (all)	tMRCA (Netherlands foreground)	tMRCA (Denmark foreground)	Estimated evolutionary rate	Estimated evolutionary rate (Netherlands foreground)	Estimated evolutionary rate (Denmark foreground)
SC	17 July 2019 [02 July 2019, 01 October 2019]	03 March 2020 [13 February 2020, 21 March 2020]	24 February 2020 [04 January 2020, 12 April 2020]	4.66 [4.25 , 5.07 ]
UCG	13 July 2019 [02 July 2019, 04 August 2019]	17 March 2020 [13 February 2020, 05 April 2020]	02 March 2020 [08 January 2020, 16 April 2020]	5.18 [4.64 , 5.72 ]
FLC (stem)	20 July 2019 [02 July 2019, 18 August 2019]	17 February 2020 [26 January 2020, 06 March 2020]*	17 February 2020 [28 December 2019, 08 April 2020]	4.82 [4.34 , 5.2 ]*	1.2 [6.93, 3.34 ]	4.42 [1.2 , 2 ]
FLC (stem and clade)	17 July 2019 [02 July 2019, 17 September 2019]	14 March 2020 [24 February 2020, 28 March 2020]	31 December 2019 [10 November 2019, 13 February 2020]*	4.5 [4.08 , 4.91]*	1.86 [1.3 , 2.45 ]	2.37 [1.67 , 3.1 ]
FLC (shared, stem)	24 July 2019 [02 July 2019, 22 August 2019]	17 February 2020 [30 January 2020, 06 March 2020]*	28 February 2020 [15 January 2020, 16 April 2020]	4.86 [4.45 5.27 ]*	1.15 [6.1 , 3.47 ]
FLC (shared, stem and clade)	17 July 2019 [02 July 2019, 20 September 2019]	17 March 2020 [28 February 2020, 01 April 2020]	21 February 2020 [01 January 2020, 05 April 2020]	4.64 [4.25 , 5.04 ]	1.9 [1.33 , 2.5 ]

* Effective Sample Size (ESS) < 200.