Thursday, July 28, 2016

Seeing a Real Mammoth Dig – The Mammoth Site, Hot Springs SD [July 15, 2016]

Mammoth skull and tusks, with extra tusks



26,000 years ago giant mammoths bent to get a drink at a warm water pool or perhaps to eat the grass that grew around the warm water in a cold landscape, and fell into the water.  The pool had very steep sides and they couldn’t climb out.  The animals eventually died and fell to the bottom of the pool and became covered with silt.  Fast forward to 1974, when a heavy equipment operator was leveling a hill for a proposed subdivision.  He unearthed a tusk, and stopped working.  He took the tusk to his son who had studied geology and archeology in college.  The son contacted his former professor who fortunately happened to be a mammoth expert.
Look at those tusks!

Paleontologists determined the outside dimensions of the pool  because it was a different color rock.  They then built a building around the dig so that visitors can see the bones as they are being unearthed all year long.  They leave as many of the bones in place as they can so that you can see what it looks like as scientists are working.  When they need to dig down another level, they stabilize and remove the bones.

Part of the dig, gives you an idea of the scale of the site
Most of the animals are Columbian Mammoths, a larger cousin of the Wooly Mammoth.  There are a few Wooly’s there, as well as Short Faced Bears and other smaller animals.  You can also see footprints  where later Mammoths walked over the mud as the pool silted in.
It is all inside a building
The site is fascinating.  The tour takes you along the perimeter of the pool.  You meet “Napoleon Bone-Apart” a mostly intact skeleton, “Beauty” an intact skull with tusks that somehow landed face up, and “Murry Antoinette” a headless skeleton.  All of the Mammoth skeletons are from male animals.  Modern Day elephants travel in matriarchal packs, kicking out the young males when they reach maturity.   Scientists think Mammoths may also have lived that way, which might be an explanation for why there are only male animals found in the dig.  The female Mammoths traveled in groups with their young, and might not have ventured to a dangerous looking hot spring.
Paleontology tools


More tools
Scientists did a core sample of the dig, and believe that there may be 40 more feet below the current level of the dig.  Wow!  Meanwhile, they are meticulously brushing away the soil, filtering it for remains of small animals and occasionally finding a piece of a bigger animal underneath.
Mammoth pelvis

Almost complete skeleton

Mammoth molars, size of a tennis shoe, and jaw

No comments:

Post a Comment