Royal Tyrrell Museum to celebrate 25th Anniversary

This year, the Royal Tyrrell Museum, in Drumheller, celebrates it's 25th Anniversary. Within that short time, the museum has been established as Canada's leading palaentological authority, being the only museum in Canada dedicated exclusively to the science of palaeontology.
The museum's special anniversary exhibit, Alberta Unearthed: 25 years of discovery, showcases 25 of the most significant specimens, and recounts rarely told stories of discovery.
From this exhibit, two displays have connections to Three Hills.
The oldest and largest Eotriceratops xerinsularis (ancestor of the Triceratops) was discovered at Dry Island Buffalo Jump Provincial Park in 2001 when a field camp cook came across some unusual bones protruding from the ground. Royal Tyrrell Museum staff were notified, and spent two weeks at the site uncovering a nearly complete, somewhat fractured skull belonging to a huge horned dinosaur. It took technicians a year and a half to prepare the giant for research, resulting in the largest ceratopsian skull ever found. When radiometric technology dated the age of the rock surrounding it, they found it to be 68 million years old- older than any Triceratops.
One theory behind the dinosaur's demise has some evidence to back it up, found preserved in rock along the Red Deer River.
The Cretaceous- Tertiary Boundary marks a moment in time, 65 million years ago, when there was a sudden global change in the environment, devastating most of the animals and plants that were alive at the time. It is marked by a thin layer of sediment, called the Boundary Claystone. One of the best sites in the world to see this claystone is about an hour north of Drumheller, along the Red Deer River. No dinosaurs have ever been found above this layer, leading scientists to believe their extinction coincides with this event. Two extraordinary pieces of evidence are preserved at the Boundary, shocked quartz (quartz grains that have been fractured due to high, instantaneous pressures), and iridium (an element which is scarce on the surface of the Earth, but plenitful in some meteorites). Scientists conclude that a meteor collided with Earth and the resulting debris formed the Boundary Claystone.
The Royal Tyrrell Museum is planning to celebrate its 25th anniversary on September 25th, 2010, by offering free admission, free guided gallery tours and extra programming.