by Alan McDonald and Kathlyn Stewart
As Canadian Museum of Nature palaeontologists, there’s one question we get asked more than any other: “How do you get dinosaur bones out of the rock?”
In 2013, one of us (Kathlyn Stewart, museum palaeonotogist and co-author of this blog post) concluded that the best way to respond to this question would be to show, rather than tell, the answer.
Thus was born what’s become the hugely popular fossil preparation station in the Fossil Gallery.
Here, every Saturday afternoon, museum visitors can watch and talk with a palaeontologist who’s preparing, or prepping out, a real dinosaur fossil at the demonstration table. The scientist is often the other half of this blogging duo, collections technician and head of our fossil preparation laboratory, Alan McDonald.
We work on real dinosaur specimens from our collections, some of which were collected more than 100 years ago. The specimens are still in their historic, unopened field jackets, the protective plaster cast that’s put on a fossil when it’s collected. Visitors see the tools and techniques involved in the often-intricate process of prepping out a real fossil.
However, soon after starting the demonstration table, we realized that even better than demonstrating fossil preparation would be to allow visitors to participate.
So, the next year, we added an interactive component, the children’s activity station.
Here, visitors of all ages can take part in hands-on preparation of actual dinosaur fossils. The specimens, fossils of horned dinosaurs (ceratopsians) and duck-billed dinosaurs (hadrosaurs) from our teaching collection, are embedded in a simulated matrix and dressed in plaster like an authentic field jacket. Then visitors use similar tools to the ones we use to prep out the fossils.
While aspiring palaeontologists diligently work to free the dinosaur bones, museum palaeontology staff, or our dedicated and indispensable volunteers, explain the many steps required to remove fossilized specimens from the ground, cover them with plaster field jackets, transport them to the lab, and prepare them for study.
Since 2013, numerous museum specimens have received professional treatment at the demonstration table, making the museum’s scientific collection more accessible and contributing to some very interesting research projects. This includes a recently completed study concerning why armoured dinosaurs (ankylosaurs) are usually fossilized upside down.
The fossil preparation station has been enormously popular. We average around 330 visitors to the fossil preparation station every Saturday afternoon, and we hit a record number of more than 900 people during the 2017 Canada Day weekend.
As the station begins its fifth year of operation, we look forward to further engaging our visitors and inspiring future scientists.
And, together, we all anxiously wait to see what new fossil discoveries lie buried beneath the plaster!