Figure 3 from the above article was erroneously published upside down. Please see below the correct version of the figure. The publishers apologise for this error.
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20180419110153341-0107:S0016756815000564:S0016756815000564_fig1g.gif?pub-status=live)
Figure 3. Distribution of chitinozoans in the Upper Heldre section. (1) Lithostratigraphic units after Cave & Waters (2008). (2) Lithology. (3) Individual graptolite ranges and graptolite biozonal boundaries after Palmer (unpub. PhD thesis, Trinity College, 1972). Sample numbers ‘DP’ (left) are as given in Palmer (1972). VP – samples collected by the authors during the spring and summer of 2013; * – sensu Sutherland (1994).