 Second, the fossil record contains three genera of rhabdodontids – "Mocholdon", "Zalmoxes", and "Rhabdodon" – that make up two geographically separated lines in the archipelago.Traditionally, it has been thought "Mochlodon" and "Zalmoxes" were insular dwarfs.The smaller sizes of "Mocholodon" (1.6 to 1.8 m) and "Zalmoxes" (2.0 to 2.5 m) relative to "Rhabodon" (5.0 to 6.0 m) and the island locale that all three genera shared led to the hypothesis of island nanism in the case of the former two.