The reduced limb away from H. naledi is placed besides by the another type of blend of primitive and you can derived traits, also of the exposure out-of unique enjoys in the femur and you may tibia. Like all other bipedal hominins, H. naledi and also a great valgus lower body and you may varus foot. Muscle mass insertions into the M. gluteus maximus was strong in addition to femur keeps a highly-marked linea aspera that have pilaster variably establish. The brand new tibia is mediolaterally compressed with a curved anterior edging, an enormous proximal connection towards the M. tibialis rear, and you will a slimmer medial malleolus. The fresh fibula is actually gracile which have laterally based horizontal malleolus, a somewhat game shoulder and you may a beneficial convex body for the proximal connection of your Meters. peroneus longus. Book have throughout the down limb away from H. naledi are a depression regarding the premium facet of the femoral shoulder you to leads to one or two mediolaterally mainly based pillars inferoposteriorly and you will superoanteriorly, and you can a strong distal connection of the pes anserinus into the tibia.
This new ft and you will foot from H. naledi was mainly humanlike (Contour nine). The tibia really stands orthogonally on the fresh talus, that is sparingly wedged, that have an excellent mediolaterally flat trochlea that have medial and you can horizontal margins during the even peak, a questionnaire distinct from the fresh strong keeling observed in OH 8 (H. habilis) and many tali out-of Koobi Fora. The new talar head and you may neck showcase good, humanlike torsion; the brand new lateral angle is higher than in most human beings, similar to one to found in australopiths. The calcaneus is only modestly strong, but and has the brand new plantar declination of the retrotrochlear eminence and you will plantarly arranged horizontal plantar processes utilized in one another modern individuals and you will Au. afarensis. Brand new peroneal trochlea try small, in place of that included in australopiths and comparable just to you to from inside the H. sapiens and you will Neanderthals. The talonavicular, subtalar joints and calcaneocuboid bones was humanlike within the possessing limited selections of movement and evidence for a securing, rigorous midfoot. The fresh advanced and you may horizontal cuneiforms is actually proximodistally elongated. naledi owned an enthusiastic adducted, non-gripping hallux. Your head of first metatarsal is actually mediolaterally offered dorsally, an indicator of a beneficial humanlike windlass mechanism. This new ft and it has humanlike metatarsal lengths, direct size, and you may torsion.
The latest phalanges try moderately rounded, somewhat more so compared to H. sapiens. Truly the only primitive anatomies found in the base away from H. naledi would be the talar head and you will shoulder declination and sustentaculum tali angles, suggestive out-of a lower life expectancy curved legs that have a plantarly arranged and horizontally inclined medial column than just typically found in progressive humans (Harcourt-Smith et al., 2015).
The new patella is fairly anteroposteriorly thick
The axial bones gift ideas a combination of derived (generally areas of the fresh vertebrae) and you can apparently ancient (mainly the newest ribs) attributes. The fresh new Denver hookup bars maintained adult T10 and T11 spinal vertebrae are proportioned much like Pleistocene Homo, which have transverse procedure morphology most like Neandertals. The fresh sensory rivers of them vertebrae is actually higher when comparing to the diminutive full size of the fresh new backbone, proportionally recalling Dmanisi H. erectus, Neandertals, and you may modern human beings. Brand new 11th rib is actually upright (uncurved), like Bien au. afarensis, additionally the shape of the upper rib cage looks thin, once the reviewed away from earliest and you may next rib fragments, recommending that thorax is actually pyramidal in form. Brand new twelfth rib presents a powerful axle cross-section most exactly like Neandertals. This combination is not used in other hominins that can echo allometric scaling on a little trunk area size.
The new hallucal tarsometatarsal combined was apartment and you can proximodistally aligned appearing one H
New Dinaledi iliac blade is actually flared and you can reduced anteroposteriorly, like Bien au. afarensis or Bien au. africanus. The brand new ischium is actually quick having a thin tuberoacetabular sulcus, in addition to ischiopubic and you will iliopubic rami try thick, resembling Bien au. sediba and you may H. erectus. That it blend of iliac and ischiopubic enjoys was not located in other fossil hominins (Profile 13).