Somerset and Lancashire are no wiser as to how their seasons will finish after 14 wickets fell on day one of their Division One match at Taunton.

Needing a win to give them any chance of claiming the Division One title, Somerset were bowled out for 202.

Peter Trego (81) helped the hosts to a bonus point but Oliver Newby (4-72) and Glen Chapple (3-33) were their undoing.

Andy Caddick and Charl Willoughby then took two wickets apiece to restrict Lancashire to 56-4 at the close.

The toss looked likely to prove important after both captains had surveyed the green wicket, clearly prepared to produce a decisive result.

It was Lancashire's Stuart Law who called correctly and Somerset plunged straight into trouble as Marcus Trescothick fell for a duck in the second over.

Captain Justin Langer soon followed and it was 33-3 when James Hildreth attempted to leave a delivery from Newby and edged a second catch of the day to wicketkeeper Luke Sutton.

Zander de Bruyn did his best to stop the rot with 39 off 66 balls but just as the South African seemed to be getting into his stride he edged Tom Smith to Paul Horton at first slip.

The wickets kept falling as Ian Blackwell popped up a return catch to Smith and Craig Kieswetter top-edged an attempted pull shot off Newby and Sutton took the skied catch.

Even one bonus point looked beyond Somerset when Alfonso Thomas was pinned lbw on the back foot by Chapple.

Trego was dropped by Horton at slip on 27 and went on to complete a fine half-century off 76 balls.

Steffan Jones' resistance ended when he was caught at cover off Newby, but Caddick (24) came in at number 10 to play a key hand.

He and Trego added 51 to take the score to 202 before Trego was caught behind driving at Gary Keedy.

Caddick turned the clock back with two classic lifters to dismiss Horton and Karl Brown, both caught behind, while Willoughby found the outside edge of Law's bat and Trescothick held on at second slip.

It was 45-4 when Mark Chilton was clean bowled by Willoughby for 17 and at the close Somerset were back in with a chance victory.

"We were in a pretty tricky situation just before lunch, but to get nearly half of the way through their team before close - when we need a victory in this game - is a great position to be in.

"It was a pretty tricky wicket to bat on, balls were nibbling a little bit, the bounce was a little bit inconsistent but if you bat well or bowl well you'll get something out of, so it's a good cricket wicket."