Inhaltsangabe1. Introduction.- I. The Site.- 2. Geologic setting and age.- 3. Microstratigraphy and paleoenvironments.- 4. Taphonomy.- 5. The faunal context.- II. The Specimen.- 6. The skull.- 7. The postcranial bones.- 8. The dentition.- III. Analytical Studies.- 9. The physiological age of KNM-WT 15000.- 10. The reconstruction of the pelvis.- 11. Body size and body shape.- 12. The thoracic and lumbar vertebrae.- 13. The rib cage.- 14. The endocast.- 15. The vertebral canal.- 16. A morphometric study of facial growth.- 17. Perspectives on the nariokotome discovery.- A note on accession numbers.- The preparation and Casting of the specimen.- References.- Acknowledgments.- Contributors.