Tom Baird and Richard Conium. "Geology of Hațeg". Paleobiology and Biodiversity Research Group, Department of Earth Sciences, University of Bristol. Diakses tanggal March 16, 2020. It was formed by uplift caused by the closing of the Tethys Ocean by the collision of the African and Eurasian plates
Csikia, Z.; M. J. Bentonb (2010). "An island of dwarfs — Reconstructing the Late Cretaceous Hațeg palaeoecosystem". Palaeogeography, Palaeoclimatology, Palaeoecology. 293 (3–4): 265–270. Bibcode:2010PPP...293..265C. doi:10.1016/j.palaeo.2010.05.032.
Csikia, Z.; M. J. Bentonb (2010). "An island of dwarfs — Reconstructing the Late Cretaceous Hațeg palaeoecosystem". Palaeogeography, Palaeoclimatology, Palaeoecology. 293 (3–4): 265–270. Bibcode:2010PPP...293..265C. doi:10.1016/j.palaeo.2010.05.032.