To be honest I cannot acurately categorise this particular poo. I am reminded of fudge that hasn't set as well something I saw on a dairy farm many years ago.
This could actually be an example of what we have been looking for, Picked Upus. There seems to be a solidified liquid base and a kind of 'snapped off' appeareance in the centre. Perhaps a walk to the park and a belated collection on the way home.