If this doesn’t convince you then I don’t know what will.
This one?
BEIJING, Jan. 23 (Xinhuanet) – A biplane dinosaur named Microraptor gui, said existing 125 million years ago by a U.S. researcher, may have had upper and lower sets of wings, much like the biplanes of early aviation, media reported Tuesday.
"The legs of the 900-gram creature could have been held below the body in flight, creating two staggered wing sections, the upper one slightly ahead of the lower one," said Sankar Chatterrjee, a researcher at Texas Tech University.
what are you guys talking about. its this one.