Erliansaurus is in between basal therizinosaurids and the more advanced ones. It was described in 2002.
is this the ancestor of the larger therizinosaurus? and others of the same family?
One of them. Not enough is known about it, really. Falcarius utahensis is the most basal therizinosaur known.
Bellamanus... beautiful hand maybe? Interesting. Do you know how big they were?
4-6 meters long maybe? As big as Segnosaurus. But not as heavily built as later Theris.
I never new there was a Dinosaur called Erlianosaurus...when did it live?