|Named By:||G. L. Bell Jr & M. J. Polcyn in 2005|
|Time Period:||92 Ma Late Cretaceous|
|Location:||USA, Texas, Dallas County - Kamp Ranch Limestone|
|Size:||Up to 1 meter long|
|Fossil(s):||2 partial specimens, together represented by a partial skull and disarticulated post cranial remains|
|Classification:||| Chordata | Reptilia | Squamata | Mosasauridae | Mosasaurinae ||
Dallasaurus ("Dallas lizard") is a basal mosasauroid from the Upper Cretaceous of North America. Along with Russellosaurus, Dallasaurus is one of the two oldest mosasauroid taxa currently known from North America. This small semi-aquatic lizard measured less than a meter in length, compared to such gigantic derived mosasaurs as Tylosaurus and Mosasaurus, each exceeding 14 meters.