In a chapter entitled “Possibilities” from my new book, Lizard Man, I discuss various theories which have been proposed to explain sightings of reptilian-humanoid type cryptids. One of these theories is based on the concept of a “Hypothetical Dinosauroid,” which is a conjectured evolutionary path conceived by D.A. Russell and R. Séguin and published in 1982 in the National Museum of Canada’s Syllogeous No. 37. In the paper, Russell and Séguin essentially hypothesize that if the brain of this dinosaur had continued to grow in proportion to its body, then evolutionary changes would have been necessary to accommodate the new cranial mass. One of these changes would have been a more upright stance, since the “tendency to position the head more directly over the vertebral column is seen in anthropoids of increasing brain size.” This would conceivably lead to more anthropomorphic legs, longer arms, and most dramatically, a human-like head. It’s an interesting concept, and one that I discuss further in my book (as it relates to cryptozoology).
Along these lines, I came across this interesting video which provides additional information and visuals in regard to the concept of the Dinosauroid and reptilian humanoids in general:
Read: Troodon and the Dinosauroid Hypothesis »