Daiane dos Santos started gymnastics at 11 years old and she's champion, won floor titles over Cataline Ponor,Cheng Fei, has 2 skills named after her - the piked and the laid-out double arabian somersaults (that 2nd one is called Dos Santos II).
more at:
http://www.gymchat.com/messageboards/viewtopic.php?p=2151#2151
so, it can happen!
There are other examples too.