Bastir Markus is a paleoanthropologist and Research Professor at the department of Paleobiology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Madrid, Spain.

He completed his PhD-Thesis, Doctor europaeus (Summa cum laude), in 2004 from Museo Nacional de Ciencias Naturales-CSIC; Autónoma University of Madrid, Spain.

He is interested in human evolutionary anatomy, and investigates how different anatomical and functional systems interact with each other during ontogeny and evolution resulting in the variation observed in the hominin fossil record. This viewpoint leads to an "organismal" perspective for a causal-analytic, quantitative, and hypothetico-deductive study of hominin fossils.

His research group combines the methods of 3D geometric morphometry with 3D virtual morphological methods, to not only analyze, but also visualize quantitative models of variation patterns, model functional processes (musculoskeletal biomechanics, movement, and fluid dynamics) or simulate patterns of evolutionary change.

He is Scientist in Charge of the Virtual Morphology Lab MNCN-CSIC. He is also a member of the Doctorate Programme in Biology (Universidad Autónoma Madrid), and Research Associate, Evolutionary Studies Institute, Wits University, Johannesburg, South Africa, and serves on the Editorial Board of “Anthropological Sciences”, Journal of the Anthropological Society of Nippon, Japan.