A Guide to Legs

A lot of people put "human legs" on dinosaurs. Not only when drawing, they are also very common in animatronics (90% of which are crap in the purest form). This needs to be corrected.
Also, be careful with max. movement range (not shown here). Examples: at maximum retraction of the hip, the femur will be at 90° (vertical). And even at maximum extension of the knee, femur and tibia/fibula will NOT be aligned at 180°. Never.

If you find any error, let me know. (Both in the anatomy and the grammar). Suggestions are welcome.

References:
-www.skeletaldrawing.com
- "The Complete Dinosaur, Second Edition."
- Hutchinson, Anderson, Blemker, and Delp. "Analysis of hindlimb muscle moment arms in Tyrannosaurus rex using a three-dimensional musculoskeletal computer model: implications for stance, gait, and speed." Paleobiology, 2005.
- Carrano, M. T. and Hutchinson, J. R. (2002), Pelvic and hindlimb musculature of Tyrannosaurus rex(Dinosauria: Theropoda). J. Morphol., 253: 207–228. doi: 10.1002/jmor.10018

...And some others I forgot to bookmark.