Interesting mount, perhaps first performed by American Michelle Goodwin in 1982. (Front tuck somersaults over the low bar were big back then.)
Click PLAY or watch it on YouTube.
Years later it was done by former Soviet star Olesia Dudnik — without the butt bounce off the low bar. (video on Gymblog)
In the most recent code it’s an E-part. No gymnast’s name is attributed to the skill. Sorry Dude.
Gymnastics Coaching.com 