Bakker blogs: You can’t have a dinosaur as a pet, but you sure can pet a dinosaur!

You know that saying, “You can pick your friends, you can pick your nose, but you can’t pick your friend’s nose”? Well this is like that. Sort of.

We know you can’t actually adopt a dinosaur for a pet, but you can pet a dinosaur at HMNS’ new Hall of Paleontology! Curator Dr. Bob Bakker tells us how (and who) in this latest Bakker blog.

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Dinosaur “mummies” conjure up visions of B-movies with Cretaceous monsters wrapped in funereal linen, chasing Brendan Fraser across Egyptian sand dunes.

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The most famous duck-bill dino mummy is likely the edmontosaur at New York’s American Museum. The “skin” you see is an impression in the rock.

Our new Prehistoric Safari features two dino mummies: our fantastic Triceratops, Lane, and a slab of duck-billed dinosaur we nicknamed “Trigger.” Lane’s perfectly preserved skin is beautiful, but so delicate we can’t let visitors touch it (even the PhDs held their breath when they moved the specimen). But Trigger’s hide is totally petrified and rock-hard, so we want you to pet it.

Go ahead, give Trigger a gentle touch. Lots of folks get goose-bumpy when they run their fingers over the finely textured scales that covered this 4-ton veggie-saur, which chomped down on bushes in Utah some 73 million years ago.

In truth, most “mummified” dinosaurs aren’t exactly mummified in the original sense. True mummies preserve the actual skin and much of the body muscles, which become dehydrated and shrunken around the skull and skeleton.  The Egyptians were masters of religious mummification and devised clever ways to prevent the decay that usually rots out the soft tissue. Nature can mummify human bodies, too — when burials occurred in desert sand. Hot winds suck out the water from the sand and extract the juices from the deceased, leaving a body with leathery skin and desiccated innards.

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Dino mummies ≠ Egyptian mummies.

Usually, dinosaur mummies appear as if they have real skin shrunken over their ribcages and faces. But if you look closely, you’ll see that all the skin tissue is actually gone. What’s left is the impression of the skin, preserved in fine-grain sand and mud. What happened is this:

The dinosaur died and dried out. Scavengers were kept away somehow (that’s the tricky part) until sediment buried the carcass. Microbes finally destroyed all the skin tissue, but not before the sediments had been pressed tightly against the body. As the sand and mud hardened, the sediment recorded the impression of the outer skin surface — many “mummies” capture the skin texture with fabulous fidelity.

Lane the Triceratops goes one step better. There are genuine remnants of the original skin material preserved as dark, carbon-rich residue. We’ll do some high tech probing of this stuff to search for organic molecules. (No, we won’t get genetic material, Jurassic Park fans — DNA is too big and complicated to survive more than a few thousand years.)

Our Prehistoric Safari has a fine cast replica of a third dino-mummy, the famous duck-billed Brachylophosaurus named “Leonardo” from Malta, Montana. Leo, as he is known affectionately, has skin impressions over the arms, shins and flank. However, his claim to fame is his innards. The contents of Leo’s stomach and intestines are still there, faithfully recording his last meal. Tiny fragments of Late Cretaceous leaves fill the gastrointestinal tract, and you can see the progress of the digestive cycle.  Leaf bits get smaller passing from the stomach to the lower guts, showing that digestive juices were doing their job of breaking down the food.

Leonardo is the only herbivorous dinosaur specimen which gives us a glimpse into the food-processing organs deep inside the body.

But back to the petting —we have several pettable specimens in the exhibits and on the touch carts. Feel free to stroke bones, teeth, even our wonderful selection of coprolites (though you might want to look that word up).

The making of a moniker: How Lane got his name and a Wyoming teenager got a spot in the history books

Ever wonder how specimens are named? Usually its to honor someone or something. Even scientific names can be conjured up to pay tribute to something; take Postosuchus, for example, a croc-oid creature named for the Post, Texas town where it was discovered.

Our mummified Triceratops, Lane, already had a scientific name, but he has a nickname that’s pretty special. Lane is named for Lane Zerbst, a 16-year-old boy from Lusk, Wy. whose grandmother, Arlene Zerbst, discovered our Triceratops‘ remains in 2007 while hiking on her property.

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HMNS’ Associate Curator of Paleontology David Temple with Lane, Arlene and Kelsey Zerbst.

A portion of our new Triceratops‘ spine was sticking out of the ground, and could you believe that this wasn’t the first Triceratops discovery Arlene had made on her property?

A first specimen was discovered in 1997 and now resides in the Indianapolis Children’s Museum. Arlene named it Kelsey, for her granddaughter, and the second Triceratops Lane, for her grandson.

“We usually go out and look for frags [fragments]. If you find something, great, and if you don’t, it’s a fun afternoon out,” Arlene says. The day Lane was discovered Arlene had been out hiking and hunting fossils with a friend when she heard her friend call out. “She said, ‘I think we found some bones!’ I trekked back down the hill and got to looking and I could see vertebrates sticking out.”

Arlene, who along with her husband is an amateur fossil hunter, took a sample and sent it to the Black Hills Institute for analysis. It wasn’t until about three weeks ago when Lane was fully assembled and cleaned up that she was able to see just how significant of a find it was.

Arlene says the family still takes their four-wheelers to hunt fossils on the property when they have time, and her grandson is delighted to have a specimen of his favorite type of dinosaur named for him.

The Zerbst ranch in Niobrara County, Wyoming is part of the expansive Lance Creek fossil bed, which contains the fossils of many dinosaurs from the Late Cretaceous Period and has been the site of many Triceratops discoveries.

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The Lance Creek Formation was once contiguous but has since been broken apart by time and erosion.

Speaking of names, you have the opportunity to make history of your own! You have until 5 p.m. to decide on the moniker for our new T-Rex Trying mascot. For a refresher, your choices are Tex, Huey, Amigo, Sam and Tiny. Vote for your favorite here!