Were the Larger Orangutans of the Ice Age Ground-dwelling and Bipedal?

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819487/

https://books.google.com/books?id=CL-uCwAAQBAJ&pg=PA67&lpg=PA67&dq=ground-dwelling+larger+orangutans+pleistocene&source=bl&ots=gQY5mFBjpL&sig=pX-eX1rl-obdTJrc4SYZcOuvv8k&hl=en&sa=X&ved=0ahUKEwi1j6vH6o_MAhVKcz4KHdZwC3QQ6AEIMTAE#v=onepage&q=ground-dwelling%20larger%20orangutans%20pleistocene&f=false

http://scienceblogs.com/tetrapodzoology/2009/12/14/encounters-gigantic-orangutans/


http://www.nature.com/nature/journal/v459/n7249/full/459910a.html

Were the Larger Orangutans of the Ice Age Ground-dwelling and Bipedal?