Yorkshire began their LV= County Championship campaign with a dominant batting display to put the pressure on Somerset on the opening day of their Division One clash at Taunton.
The Tykes are looking to go one better than last season’s the runners-up spot, and signs were promising as half-centuries from Adam Lyth, Gary Ballance and Adil Rashid saw them reach 342 for five at stumps and claim three bonus batting points.
Somerset almost seized immediate reward from their decision to field first when Alex Lees was put down by Alviro Petersen three overs in.
And the mistake was punished as Lyth and Lees combined to put on 50 after 12.2 overs.
Somerset made the breakthrough soon after when Craig Meschede removed Lees’ off stump, with the young Yorkshireman walking for 34.
Kane Williamson lasted just six balls before the New Zealander fell without scoring after swiping a Meschede delivery to Chris Jones at mid off.
Lyth kept reached a 71-ball half-century with a boundary off Craig Overton - a stroke which also brought up 100 for the visitors.
Captain Andrew Gale provided able support and the pair quickly notched a 50-run stand - in just 13 overs.
The hosts struck again early in the afternoon with Gale trapped lbw for 24 to give Meschede his third wicket.
Lyth escaped on 70 when Craig Kieswetter let one slip through his gloves behind the stumps, but was ended for 85 by Overton, with Gregory taking a superb diving catch at mid-wicket.
Ballance and Rashid quickly formed another good partnership, seeing Yorkshire to tea before the former brought up his fifty off 97 balls.
Somerset’s frustrations grew when Rashid also passed his half-century with a boundary off Meschede but the decision to take the new ball paid off immediately with Ballance sent back to the pavilion lbw by Gregory for 77, ending a 115-run partnership.
Another dropped catch followed with Rashid put down on 63, again by Petersen, and the Bradford-born all-rounder steered his score to 84 at stumps, with Andy Hodd 22.