ANTHR101 Lecture Notes - Paranthropus Robustus, Homo Rudolfensis, Homo Habilis
14 Mar 2014
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****the paranthropus line 2. 5-1. 3 mya aka robust australopithecines. Different genus name than australopithecines because they did go extinct and do not become humans: para-anthro. What makes paranthropus (or as they were formerly known, robust a. Larger brain size (500-550cc), but not larger in comparison to body size. Very large supraorbital torus/tori (this is the bone ridge above the eyes) Pneumatized skull (air pockets inside the bone) (like sinuses in modern man) ^these last four features we recognize in a species alive today but para aren"t their ancestors. For muscle attachments. the very big jaws are present and suggest they eat a lot of food that is very difficult to chew. Humans have a crest like this on their femurs. Adapted to a diet made of coarse vegetation (grinding teeth). tough to chew. Much more pronounced sexually dimorphic than australopithecines. males nearly twice the weight of women. Very similar to gorillas today but no where near that size.
