He graduated from the Philosophical School at the University of Vienna in Paleontology on March 21, 1921 with the academic degree 'Dr. phil.' (dissertation: 'Über die Temporalregion des Schildkrötenschädels').
He is best known for his work in China, where he, as an assistant to Johan Gunnar Andersson, discovered a fossil tooth of the Peking Man in 1921 at the Dragon Bone Hill, although he did not disclose it until 1926 when he published it in Nature after an analysis by Davidson Black. He is also famous for his excavations of mammal fossils in Baode County area (Pao Te Hsien), Shanxi Province.
- Katharina Kniefacz Otto Karl Josef Zdansky // Memorial Book of National Socialism at the University of Vienna
- "Morgan Lucas" (PDF). Archived from the original (PDF) on May 4, 2006.
- "Hipparion Clay".
- Jokela, T., Eronen, J. T., Kaakinen, A., Liping, L., Passey, B. H., Zhaoqun, Z., & Mingkai, F. (2005). "Translation of Otto Zdansky's "The Localities of the Hipparion Fauna of Baode County in Northwest Shanxi"(1923)" (PDF). Palaeontologia Electronica. 8 (1).