Xenosauridae Cope, 1866
Xenosaurus grandis Gray, 1856
Xenosaurus newmanorum Taylor, 1949
Xenosaurus penai Pérez Ramos, DE LA Riva & Campbell, 2000
Xenosaurus phalaroanthereon Nieto-Montes de Oca, Campbell and Flores-Villela, 2001
Xenosaurus phalaroantheron Nieto-Montes DE Oca, Campbell & Flores-Villela, 2001
Xenosaurus platyceps King & Thompson, 1968
Xenosaurus rectocollaris Smith & Iverson, 1993
