Shoriful Islam dragged Bangladesh back into the second Test with a six-wicket burst on Saturday.
His six-wicket haul left Australia 151 for 8 after the home side bowled Bangladesh out for 64.
Australia led by 87 runs at the end of the third session, but their innings began to unravel late in the day. Shoriful took five of his six wickets after tea, including the key wickets of Steve Smith, Beau Webster, Pat Cummins and Mitchell Starc.
Smith was the first of the late casualties, trapped lbw for 16 at 118 for 4. He reviewed the decision, but ball tracking showed the delivery clipping the outside of off stump.
Shoriful then struck twice in the 31st over. Webster was given out lbw for a golden duck after playing down the wrong line, and Cummins fell for a duck two balls later, fending a short delivery onto his glove for Litton Das to catch.
Two overs later, Shoriful bowled Starc for 1, finding the top of off stump with a delivery that straightened sharply off the pitch.
His first two wickets came earlier, when Travis Head chopped on for 28 and Marnus Labuschagne was bowled for a duck.
Shoriful's figures stood at 6 for 34 from 10 overs, his best in Test cricket.
Australia looked in control when Head and Labuschagne put together a steady start after Matt Renshaw fell for 13. But Bangladesh kept finding wickets, and Shoriful's spell turned the innings on its head.
Cameron Green was unbeaten on 32 at the close, with Alex Carey on 20.
Earlier, Bangladesh were dismissed for 64, with Mitchell Starc taking 6 for 12.
Four of Bangladesh’s top six made ducks, while Shoriful earlier joined Taijul Islam for a 25-run last-wicket stand – the innings’ best partnership.
