Piatnitzkysauridae A clade in the dinosaur family tree. The entries below are classified within it. Piatnitzkysaurus floresi 201–145 Mya · Argentina Condorraptor 179.17–178.07 Mya · South America Xuanhanosaurus qilixiaensis 166 Mya · China Marshosaurus 155–152 Mya · Utah, USA