Discover
In
the quarries, each worker is assigned an area of the quarry floor (right). The workers
carefully remove the mudstone from the surface using fine "dental tools", lowering the level of the quarry
inch by inch, listening carefully for the characteristic scratch of metal on
bone. When the first contact with bone
occurs, the worker stops, and shifts
into "slow, careful" mode. The discovery is approached from all sides
until its size and borders can be determined (left). Then working slowly and carefully, the bone is freed from the surrounding soil using the finest tools
and
a brush (left). If cracks or weak spots are present, these are cleaned then
stabilized with a special
consolidant (glue). As the bone emerges from the
sediment and its borders are exposed, the worker reports the discovery to the
quarry leader (right) and calls for the GPS (Global Positioning System) survey crew.
The
bone is next described in the field notebook of the researcher and photographed. The
exposed bone is then carefully registered in space using the high resolution GPS equipment After the measurements are taken, the excavation of the bone continues
until completed (left) and the bone is removed from the ground. If the bone is
small,
it can be wrapped in heavy aluminum foil for protection. If it is intermediate
in size, it will be removed, wrapped in foil and attached to a rigid plywood
board using polyurethane foam. If it is a large bone,
the bone must be cast
with plaster and burlap to stabilize and protect it (right) much the same as a cast you
might get on a broken bone. Bubble wrap is used to protect the bones during
transportation to the Preparation Lab.
Whether
the bone is a tiny fragment of a tooth, or a giant femur
over four feet long, or
something in between, each bone found is a cause for celebration and excitement
in the quarry (left). Not only does the excavator experience the joy of discovery, but
each bone represents a new piece of the puzzle that connects us with these
remarkable creatures. It is not hard to imagine the bone you have just found,
walking around inside of one of those 30 foot long giants!
You can watch live video feeds from the field during the month of June each summer, while we are working in the quarries by clicking on the "Watch Live" link in the menu at upper left.
Discovery is only the beginning of the journey these bones must make. For the next stage, they must be transported over 1000 miles to the Drake Paleontology Laboratory at Southwestern Adventist University in Keene, Texas. To find out what happens next, choose the "Prepare" heading at the top of the page.