Durham took a major step towards clinching the LV= County Championship title on day one against Nottinghamshire, closing on 207-8 after bowling out their opponents for 78.
Seamers Graham Onions (3-30), Chris Rushworth (3-24) and Jamie Harrison (3-4) each claimed three wickets as Nottinghamshire, who had won the toss and opted to bat first, lasted just 26.3 overs.
Opener Riki Wessels' 18 was the top score with visiting skipper skipper Chris Read (11) the only other batsman to reach double figures.
Their cause was not helped by some careless dismissals; James Taylor padded up to an inswinger from Rushworth, while David Hussey drove lavishly at Onions to be caught behind.
Durham - who began the penultimate round of fixtures with a 27.5-point lead over Yorkshire - didn't initially find life much easier with that bat when it came to their turn, at one stage slipping to 74-6.
Andre Adams took 4-27 in a 13-over opening spell, including dismissing Ben Stokes for a second-ball duck following his late arrival from England duty.
However the hosts were rescued by a stand of 121 between the contrasting pair of captain Paul Collingwood and Phil Mustard.
Wicketkeeper-batsman Mustard made a fluent 77 off 109 balls and although both he and Onions fell shortly before the close, their side will still begin the second day with a more-than-useful 129-run advantage.
Collingwood (53 not out) will hope to extend that still further having helped his side secure their fourth bonus point of the match already by passing 200.
Pitch inspector Jack Birkenshaw was out in the middle during both intervals and at the close of a see-saw day that had at one stage seen 15 wickets fall in the opening 49 overs.