Can I use Mecanim animation clips in Legacy?

I am new to Unity so sorry if its obvious.
I want to play some Mecanim animations from the starter pack with the old, Legacy system using a basic script which plays one-by-one homemade and Mecanim clips. I can add to my Animation component the Mecanim animations but it doesn’t recognize them and I get an error message. Is there a solution or it’s not possible to play Mecanim clips with the old system?

usually mecanim work in humanoid form animation (rigged avatar)