Yorkshire were made to suffer as Lancashire maintained their impressive form by taking control of their LV= County Championship Division One match during the opening day at Liverpool.
Four wickets each for Yorkshire born left-arm spinner Gary Keedy and Sri Lankan overseas all-rounder Farveez Maharoof did the damage as the visitors were bowled out for 141 inside 74 overs.
Keedy, who played one match for Yorkshire in 1994, finished with four wickets for 44 runs from 23.3 overs and Maharoof four for 35 from 16.
Yorkshire were forced to field retired wicketkeeper Simon Guy with both Gerard Brophy and Jonny Bairstow unavailable.
And they were boosted through the morning and early part of the afternoon by Joe Sayers’ determined 53 off 148 balls but their resistance after that was minimal.
Sayers and Andrew Gale (31) shared a battling 65 inside 32 overs for the third wicket as Yorkshire advanced to 95 for two.
Once Sayers had gone Lancashire turned the screw with three wickets for 11 runs in the afternoon, two of them going to Keedy.
A weak Yorkshire lower order then failed to recover leaving Lancashire with 16 overs to bat at the end of the day.
Paul Horton (39 not out) and Karl Brown (14 not out) will return to the crease for Lancashire tomorrow. Steve Patterson took the wicket for the Tykes trapping Stephen Moore leg before wicket.