The duo has been living separately from the past few weeks but they did not let their differences spoil Kendall's birthday Oct 29.
Kris and Jenner were accompanied by the latter's two sons Brandon and Brody from his previous marriage.
Socialite Kim Kardashian, who is Kris' daughter from previous marriage, also attended the do, reports dailymail.co.uk.
They were photographed having fun at the Six Flags Magic Mountain in Valencia, California.
A friend of Kendall also posted pictures of the family enjoying a roller coaster at the amusement park on Instagram.
--IANS (Posted on 31-10-2013)