Use the modules and review resources to complete the chart on this handout comparing skull features of the chimp, human, Australopithecus afarensis, and Paranthropus boisei. Refer to the module page for images of skulls of the four species.
Refer to the module page Week 6 – Skull Images for the Assignments for images and 3-D rotations of the four skulls you need to describe and compare.
Open the worksheet
- Present or absent: When a feature is either there or not, you can use a + for present and â€“ for absent. For example, â€œpresence of sagittal crestâ€ can be answered + or â€“.
- Describe: When you are asked to describe a feature, do so with a few words or short phrase. For example, â€œshape of dental arcadeâ€ can be answered â€œU-shaped.â€
- Compare: When you are asked to compare, you need to ask â€œcompare to what?â€ If there are three skulls being compared, you might say X and Y are smaller than Z. Or X is smaller than Y and Y is larger than Z.
- Measure: Use the measurements you collected in the Early Hominin Skull Measurements Assignment to complete this row and compare the index across species.
Alternately, you may use these measurements gathered from teaching materials at LAVC. All measurements are in millimeters
|Chimpanzee (male)||Human (euro male)||A. afarensis||P. boisei|
|basion to opisthicranion||
|basion to prosthion||
|nasion to prosthion||
|basion to bregma||
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