Ranjan Madugalle of the Emirates Elite Panel of ICC Match Referees imposed the fine after Steve Smith's side was ruled to be two overs short of their target when time allowances were taken into consideration.
Smith wants the decision to be taken completely out of the hands of the on-field umpires and left upstairs to the video room.
"It was probably a good thing, I wasn't hitting them very well anyway".
Buttler provided England with a major spark towards the end of their innings and proceeded to bring up his hundred off 83 balls, which included six boundaries and four sixes.
In that time Smith returned to his crease, marked centre, shadow batted and intimated to on-field umpires he thought Buttler had scooped the ball up in the webbing between his thumb and index finger.
Needing conclusive proof to overturn the on-field decision, the third umpire Kumar Dharmasena chose to back in his umpires, despite replays appearing to show the ball touching turf as it bobbled in Buttler's glove.
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England named an unchanged side for the third successive match as they looked to seal a 3-0 series victory. Smith, clearly unhappy with the decision, walked back to the pavilion amid a loud chorus of booing from the crowd. I'm not sure about this soft signal.
Taylor believed the decision to send it upstairs with a soft signal of "out" had killed Smith's chances of staying out in the middle. "Our one-day cricket hasn't been up to scratch, we've got to find ways to win against quality opposition". Personally I would have given that not out. I'm not watching the ball closely enough or something like that. After losing early wickets, Jonny Bairstow and Joe Root batted for more than ten overs without scoring a boundary as Australia's fast bowlers applied consistent pressure.
But a terrific counter-attack in the death overs from Buttler and Woakes, who added a sensational partnership off 113 runs off 72 balls for the seventh wicket, helped England amass 102 runs in the last 10 overs and finish their innings on a strong note.
Morgan praised the England bowlers and hoped that they will be able to continue in the same vein over the rest of the series.
Australia's catching was bad, as Smith and Zampa put down tough chances and White grassed an absolute sitter off Moeen Ali.
Australia's trio of Ashes quicks all went for runs in their first one-day game together since last June, with Starc (0-63) and Pat Cummins (1-67) going at more than six an over and Josh Hazlewood (2-58) also expensive.