The gene that is always expressed and will produces a trait is a genetic statistic. This statistic is what is created when the gene is dominant.
Evolutionary Tree Information: This species may be a direct descendant of Au. anamensis and may be ancestral to later species of Paranthropus, Australopithecus, and Homo. AL 288-1. âLucyâ (AL 288-1) is an adult female, 3.2 million-year-old A. afarensis skeleton found at Hadar, Ethiopia.Because she could walk upright on the ground and climb trees, she and other members of her species were able to use resources from woodlands, grasslands, and other diverse environments.he Laetoli footprints were most likely made by Australopithecus afarensis, an early human whose fossils were found in the same sediment layer. The entire footprint trail is almost 27 m (88 ft) long and includes impressions of about 70 early human footprints.
A. afarensis The most famous specimen of Australopithecus - Lucy - belongs to the species, A. afarensis. Found at sites in East Africa (e.g., Laetoli, Hadar), A. afarensis-which spans a time range between 3.8-2.8 Mya-has provided a great deal of fossil information concerning the morphology of early hominids.. africanus is very similar to A. afarensis in postcranial anatomy, with elements of the pelvis, ribs, and vertebrae exhibiting similar characteristics. The cranium of A. africanus is somewhat different, with a higher degree of cranial flexion and no crests (sagittal or compound T-N), as observed in A. afarensis.