Primeval was shown on ITV1 on Saturday teatimes
Science fiction drama series Primeval has been axed after "three very successful series", ITV has confirmed.
Starring Ben Miller, Douglas Henshall, and ex-S Club 7 star Hannah Spearritt, the show followed a group of scientists studying prehistoric creatures.
"High quality drama remains a key part of the ITV schedule, although our current focus is on post-watershed production," ITV said in a statement.
The show had an average audiences of about five million this year.
The figure was down from around six million for the first two series.
Earlier this year, ITV announced 600 job cuts and says it is now aiming to cut a further £40m in 2010.
Primeval may have suffered because of the big-budget computer effects needed to generate its fantastical creatures.
Website Total Sci-Fi said it had been told by a source that Primeval's production team were "devastated" but that they had "every intention of keeping Primeval alive in other ways".