Glamorgan teenager Tom Norton became the youngest ever first-class debutant to take a hat-trick as Somerset were reduced to 32 for 6 in a thrilling final hour on day two at Sophia Gardens.

The 18-year-old from Abergavenny ended with figures of 4 for 22 after he removed James Rew for a 13-ball duck in the second failure of the opening batter experiment tried by Somerset in the two consecutive days. Norton then found the edge of Tom Lammonby and trapped Archie Vaughan in front to the first debutant in the County Championship to take a hat-trick since 1906 and Glamorgan’s youngest to take a hat-trick.

Somerset took earlier control in the day which saw 17 wickets fall – including two in two from Migael Pretorius. Glamorgan having been bowled out for 229 gave the visitors a 125-run lead in their domination of the majority of the day before Norton’s late surge supported by Ryan Hadley into the west country side’s top order.

Pretorius took 3 for 50 to damage the Glamorgan first innings with Ben Kellaway and Chris Cooke’s partnership the only one passing half-century to offer up any resistance.

Resuming day two following three wickets lost in the final four overs on day one, Somerset’s Jake Ball was bowled by Mason Crane before long to end the first innings on 354 after being inserted.

Zain-ul-Hassan fresh off a maiden century survived three lbw shouts from Lewis Gregory in the first over on a seaming wicket before Asa Tribe flashed his first ball over the slip cordon, only to edge to fourth slip off a rising Jake Ball delivery.

The theme throughout the Glamorgan innings foreshadowed on day one was the difficulty to play the ball on a length but the ability to play freely when overpitched or short of length, Kellaway demonstrated this with drives firmly down the ground and safely deflecting the five-pronged seam attack to deep third in way to accumulate.

Pretorius’ removal of Carlson and then Colin Ingram – first ball – put a dent in Glamorgan at 59 for 4. Sean Dickson worryingly missed a full, straight delivery to cause more concern before Cooke and Kellaway offered their first sign of stability. The partnership of 80 ended with both batters removed in consecutive overs.

Timm van der Gugten was able to steer Glamorgan away from a follow-on, securing the opportunity to have 13 overs at Somerset in their second innings.

Ul Hassan added pressure with three maidens in van der Gugten’s absence taking the new ball before Norton stepped up to senior bowler status – allowing Australian Hadley the opportunity to continue the Welsh county’s momentum with two wickets of his own.