are those fossils preserved in a museum or in a safe place?
In Henan Geological Museum
Xixiasaurus
The holotype specimen (catalogued as HGM 41HIII−0201 in Henan Geological Museum, Zhengzhou) was discovered near Songgou Village, which is in the northeast region of Xixia County, in Henan Province of central China. 
what is xixiasaurus? A genus of troodontid dinosaur when did it exist? During the late Cretaceous Period how many years ago did that creature exist? UNANSWERABLE in which region were their fossils discovered? Northeast region of Xixia County who discovered it? By palaeontologist Lü Junchang and colleagues which year did they discover it? 2010
wiki:7260063
Xixiasaurus [SEP] Discovery
The holotype specimen (catalogued as HGM 41HIII−0201 in Henan Geological Museum, Zhengzhou) was discovered near Songgou Village, which is in the northeast region of Xixia County, in Henan Province of central China. This area of the Xixia Basin exposes the Majiacun Formation. In 2010, the specimen was described as the new genus and species "Xixiasaurus henanensis" by the palaeontologist Lü Junchang and colleagues. The generic name refers to Xixia County coupled with "saurus", meaning "lizard", while the specific name refers to Henan Province. The full name can be translated as "Henan Xixia lizard". Remains of troodontids are very rare compared to those of other small theropod dinosaurs (only thirteen troodontid taxa were known at the time "Xixiasaurus" was named), and have mainly been found in Asia.