Updates are available Correction dated 2018-02-13

Article History

Received: 29 June 2017

Accepted: 12 December 2017

First Online: 29 January 2018

Change Date: 13 February 2018

Change Type: Correction

Change Details: In the version of this Article originally published, in Fig. 3a the first boundary was incorrectly labelled the “K/T boundary”; it should have read the “K/Pg boundary”. The two equations in the main text were incorrectly omitted from the HTML. In the description of the posterior distribution of an ancestral state, the normal distribution was incorrectly described as being “assigned as prior to the node value”; it should have read “assigned as calibration to the node value”. In the associated equation (the second equation in the text), the denominator of the last term was incorrectly given as “Node prior”; it should have read “Node calibration”. In the same equation, the numerator of the third term on the right-hand side of the equation contained incorrect superscript notation on the x and this is shown in the full equation in the notice below.

Competing interests

: The authors declare no competing financial interests.