The term "Marked Hominid" was introduced by Loren Coleman and Patrick Huyghe in their book The Field Guide to Bigfoot and Other Mystery Primates. Coleman, a seasoned researcher in the field of cryptozoology, used the term as a tribute to fellow cryptozoologist Mark A. Hall, who, according to Coleman, was the first to identify these creatures as decidedly different from bigfoot.
Marked Hominids are generally considered a separate species from the common bigfoot, described as having a more human appearance and generally of shorter stature. Their skull rests low on their body, causing the hominid to appear to have no neck. Their eyes are large, probably due to their nocturnal lifestyle and the low-visibility of night time in subarctic regions. They are said to enter nearby towns and villages and, though they are not as intelligent as the natives, trade with them and communicate through gesticulation. Some are even thought to wear clothes and craft tools. They are thought to dislike the company of dogs, sometimes killing them out of frustration.