Shell fossils were discovered by villagers searching for plants in an unused mine area in 1994. The discovery of outstanding-shaped shell fossils in great numbers also included approximately 150-million-year-old bivalvia fossils and T-Rex fossils.
  

Nong Bua Lamphu Province then developed the dinosaur and shell fossil site into “Nong Bua Lamphu Unseen” as a site museum. The area is divided into 6 exhibition zones of: 

Zone 1 or Welcome Zone – Non Than dinosaur genus is exhibited in this zone. 

Zone 2 or Universe Zone – Here, mobile model depicting the Sun and its stars in the planet like Mercury, Venus, the World, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. 

Zone 3 or World as the Origin of Life – This zone provides knowledge on evolution of all living things on earth from the past to current days.
 

Zone 4 or the Kingdom of Hunter – Information about dinosaurs and their fossils discovered in Thailand as well as dinosaur bones found at Ban Huay Dua, Non Than Sub-District, Mueang District, Nong Bua Lamphu Province can be found in this zone. Also, a model of Siamotyrannus isanensis is displayed here. At 4-metre-height and 7-metre-long, the model can move in 8 movements.
 

Zone 5 or the Wonder of Discovery – This zone displays artificial wall with 150-million-year shell fossils where audience can look and listen to description in native dialect.
 

Zone 6 or the Explorer’s Trail – This area displays how biologists and geologist work, along with their tools, equipments, and steps in fossil studies. Geographical exploration background of the 150-million-year shell fossil site is also illustrated here,