Amethyst Update

The amethyst exhibit in the foyer was installed today, on schedule. There were a few teething pains, mostly related to lighting, but when you have done many exhibits you know that you will never be finished without some sort of issue.

The last 5% of the installation work always takes 50% of the time. As a public space, the foyer has a lot of ambient light, which means that there is an immense amount of reflection on a plexiglass case lid. When we put the lid on, we realized that we would not be able to read some of the text. So the lid came off, the backing panel was offset a bit to the side, some flat black board was placed inside the back of the lid, and the lights were moved around and adjusted a couple of times more.

Voilà, the exhibit is done, and we are very pleased with the result. MANY thanks to David, Hanna, Janis, Cindi, Adèle, Bob, Bert, Paul, Sean, and everyone else for their efforts.  Even a simple exhibit such as this one requires the work of many people!

By Dr. Graham Young, past Curator of Palaeontology & Geology

For the past several years, I have been working with the Mineral Society of Manitoba to develop a mineral exhibit at the Museum. This partnership has been a wonderfully positive one; among other achievements the Society has donated to us a gorgeous selenite (gypsum) cluster from the Winnipeg Floodway, which I hope to show you on this page at some point.

So it was not a total surprise when in the fall of 2009, I received a call from my geologist colleague John Biczok (who is also president of the Mineral Society), telling me that they had found another superb specimen for us.  The gist of his call was that,

“We have the biggest amethyst cluster I have ever seen, and it is in the back of a truck. Greg Hasler has just pulled it out of the Thunder Bay amethyst mines and it has mud all over it. Where can we deliver it at the Museum, so that we can clean it up?”

This spectacular crystal cluster was collected in September, 2009, from the Blue Point Amethyst Mine, by Lyndon Swanson, Greg Hasler, and others. It is the largest specimen Mr. Swanson has seen in ten years owning this mine! (photos: Gerry Benger, Manitoba Geological Survey).

Further discussion revealed that this was a piece that covered an entire shipping pallet, and might weigh something toward half a tonne! Now you have to appreciate that, at the Museum, we don’t have immense space available to lay things out, let alone places where we can readily pressure wash the mud from a half-tonne boulder. This specimen was arriving in Winnipeg, and it needed to be taken off the truck and put somewhere secure. Of course it was not only huge, but it was potentially beautiful and we didn’t want to see it damaged.

I was at a loss for a few minutes, wondering (for instance) if my family would mind having a giant muddy boulder temporarily stored in our garage. I surmised that they might. But then I thought of my friends at the Manitoba Geological Survey, with whom we have collaborated on several projects. A couple of calls later, and we had permission to have the amethyst delivered to the Survey’s core facility in the western part of the city. Not only would the Survey let the Mineral Society unload and wash the specimen in their yard, but they would then use their forklift to move the cleaned amethyst to a safe place inside the building.

And there it sat for the winter, occasionally visited by people from the Mineral Society and Museum, and admired and photographed by Survey staff and visiting geologists. It was truly a wonderful, spectacular piece. The Museum partnered with the Mineral Society to purchase the amethyst for our collections, with a view to putting it on exhibit in the Earth History Gallery. In the early summer last year Janis Klapecki and I carefully bundled the beautiful crystals in layer upon layer of foam padding, and it was shipped over to the Museum back rooms, where it has sat for almost another year.

Now, finally, we will have our first opportunity to share it with visitors, through a temporary exhibit in the New Acquisitions Case in the Museum foyer. This will open to the public on May 10; I am really looking forward to their reaction!

When I started to work at The Manitoba Museum in 1993, I discovered this intriguing correspondence in the “deep files,” inherited from the old Manitoba Museum:

Altamont, Man.
September, 1963

Dear Sir:

Today I was digging a hole along the edge of a slough. After digging through four feet of peat, I came upon this tooth. Two inches below the tooth was a thin layer of white sand.

Could you tell me what kind of animal this tooth is from?

Thank you for the information.

[signature]

There is a sketch of a squarish tooth in pencil on the letter, and a note that it was a “very dark brown specimen.” It looks like a bison tooth to me, and apparently the Museum staff wrote back to that effect. They must have also expressed an interest in visiting the site, as indicated by the second letter:

Altamont, Man.
September, 1963

Dear Sir:

I received your letter concerning the tooth.

The hole which I found the tooth in was dug to bury a fairly large pig. The hole was about 4 1/2 feet deep, the tooth was about 4 feet from the surface. … I found the tooth along the side of the hole, I dug around the tooth but there was no sign of any other tooth or bone of any kind. After a good look for others, we buried the pig in the hole and filled it in.

You are welcome to come to investigate any time, if you still wish to under these circumstances.

Sincerely,

[signature]

There is no note in the file on whether Museum staff visited the site. One suspects that they were not able to find the time to do so.

By Dr. Graham Young, past Curator of Palaeontology & Geology

The Jaws and Teeth Exhibit, 2007

Since one function of the blog is to focus on our collections, it seems like a good place to occasionally revisit past exhibits, especially those showing items that are normally stored away in the back rooms.

I was particularly pleased by the Jaws and Teeth exhibit, which was curated by Randy Mooi and me a few years ago. We combined zoological and paleontological specimens to demonstrate vertebrate anatomy and evolution, with a particular focus on adaptations for eating.

We loved doing this exhibit. To us, it was an opportunity to explore some of the best aspects of the traditional Natural History museum. And the public seemed to thoroughly enjoy it; we would always see family groups in the exhibit, animatedly discussing the various skulls and comparing their similarities. It really showed us that traditional exhibits can still fulfil an important function in the modern museum!

By Dr. Graham Young, past Curator of Palaeontology & Geology

Last week, I discovered several very exciting fossils. Some of these are unusual, so unusual that they will certainly end up as the subject of future scientific publications. One of them is only the second known specimen, worldwide, of a particular group for the entire Ordovician Period!

But how, you must wonder, did I manage to make these discoveries? Was I out in the -20 degree weather, scraping the snow from the edge of a quarry in the Manitoba Interlake so that I could get at the rock beneath? Was I taking time away from the Museum, collecting fossils beside some calm tropical sea?

No, it was not as romantic as either of those possibilities. I was in one of the best places to find unusual fossils: looking through the microscope in my little research office. You may have heard of those situations when a large museum discovers an unknown dinosaur in its back rooms, stored away in field jackets from some long-past collecting expedition. But what you might not appreciate is that many of the most important fossil discoveries are made in museum collections, not in the field.

It is much the same here. We might sometimes already have an inkling that we have found something unusual, such as a very ancient horseshoe crab. But it is only when we really study things carefully under a microscope that we are able to make sense of them, to discover what they actually are. And there are times that the finds are, like Euan’s, simply serendipitous. When I first started to work at the Museum, I had to sort through some uncatalogued fossils. One of these looked somewhat like a jellyfish, with the note attached stating that it had been found in a schoolyard in River Heights, Winnipeg.

Years later, when I really started to study fossil jellyfish, I pulled out that specimen and realized that it wasn’t just a jellyfish. It was actually one of the best-preserved fossil jellies in existence, and I used a photo of it in a paper we wrote reviewing these sorts of fossils. Since it was found in a schoolyard, however, we don’t actually know its bedrock source. I have my hunches about where it came from originally, but we are still hunting for that jellyfish goldmine! So maybe I will make a discovery in the field, too, but if so it will be because we first found a fossil in the Museum’s collection.

Meanwhile, on these winter days, I will be hunched over my microscope whenever time permits. There are so many slabs of rock to be pored over, fossils waiting to be discovered, and time moves on faster and faster …

By Dr. Graham Young, past Curator of Palaeontology & Geology

If we think about it at all, most of us tend to consider dung (poop) as a substance to be gotten rid of, not something to be collected and treasured. And that is the case for at least 99.9% of it, but of course the situation is different when the dung is in fossilized form, and when it comes from giant, long-extinct creatures.

Fossilized dinosaur dung, or coprolites, has been studied for nearly two centuries. Dinosaur coprolites can tell us quite a bit about the diet and physiology of the creatures, and of course they also make interesting “conversation pieces”.

The Museum is fortunate to have a few good coprolites in our collection, but the quality of this collection was greatly enhanced by a recent donation from long-time Community Associate Ed Dobrzanski. Ed gave us, from his personal collection, two superb coprolites that he had purchased from a dealer about 25 years ago. These are both from the Upper Jurassic Morrison Formation of Utah, the 150 million year-old home of famous dinosaur bones such as those of Allosaurus, Stegosaurus, Diplodocus, and  Apatosaurus/Brontosaurus.

The first coprolite is the dung of a meat-eating theropod, possibly Allosaurus, since it is the most common large theropod found in the Morrison Formation. This example, perhaps rather graphically, carries the shape associated with its original source!

By Dr. Graham Young, past Curator of Palaeontology & Geology

The following is modified from a piece I wrote for the Museum’s newsletter Features, with the addition of several images that would not fit into the print version.

In November, 1969, workers were excavating a sewer in the Wolseley area of Winnipeg, near Ruby Street and Palmerston Avenue. At the bottom of a 10.7 metre (35 foot) deep trench, a stiff blue clay was found. Above the clay were sand and gravel containing bison bones, along with clams and pieces of wood.

Tipped off by an anonymous phone call, Dr. George Lammers, the Museum’s first Curator of Geology and Paleontology (and my predecessor in this job), visited the site and collected the fossils. Since then, these unusual pieces have resided in the Museum’s collection, where they have provided much information about Winnipeg’s distant past.

Some of the wood from deep in the trench was radiocarbon dated at about 7,500 years old (7,490 ± 80 years before the present). The bison parts include a portion of a robust skull, probably of the extinct species Bison antiquus occidentalis. This species, which became extinct about 5,000 to 4,000 years ago, had horns that were significantly larger than those of modern bison. We know that the bones came from more than one bison, because they include two left mandibles (jaw bones).

There are other bones that are probably elk, and it is quite likely that all of the skeletal parts belong to animals that had been broken up by decomposition, water flow and scavengers. One of the most interesting associated pieces is a log that had been gnawed by a beaver!

The clay at the bottom of the trench was probably deposited in Lake Agassiz, the giant lake that covered much of Manitoba as the glaciers melted at the end of the last Ice Age. Lake Agassiz receded from this area by 8,000 years ago, and this site tells us that the ancient Assiniboine River had already cut a  valley within a thousand years after the lake had left the area.

Sometimes we don’t have to travel far to find evidence of long past worlds!

By Dr. Graham Young, past Curator of Palaeontology & Geology

An exhibit is a group invention. A curator devises and develops the content of the exhibit, deciding what specimens and other materials should be shown, and writing text about those materials. But most successful exhibits evolve through collaboration, in which the curator is but one player.

At this Museum, we have a well-defined process in which exhibits go through distinct development stages. Many people are involved as key decisions are made, and as work is carried out. There are, of course, the directors and administrators who ensure that schedules are followed and money is spent wisely, and who review the plans to ensure that they meet institutional standards and mandate. And there are the production experts who build casework, install lighting, create mounts, or make models. If specimens or artifacts are to be installed, then the collections and conservation staff will handle and treat them with the care they deserve. And there are meticulous editors who work diligently to check that “i”s are dotted and the “t”s are crossed, and not the other way around.

If the exhibit depends on a spatial configuration of objects and information, then the curator may produce a sketch. This layout above was my first stab at fitting together materials for the exhibit. As with so many curatorial exercises, this first go had too many words!

Stephanie’s first draft layout is mostly concerned with where the big “blocks” of design will be located. The key considerations at this point are technical issues such as the height of exhibits relative to the viewer, the design of cases, and where access doors will be located.

An initial layout with most of the content is rather “blocky”, and some details are higher on the wall than Stephanie would like. From my point of view, there are issues that some content is nowhere near where it should be on the time line. We like the colours and the overall feel, but there is a long way to go.

Draft titles have now been added, and the content has been shifted around so that it better matches the timeline. So now I am much happier, but Stephanie finds this way too busy, as do other staff. Images and text must be cut, and we are going to have to do some serious horse trading to come up with something that is acceptable to all concerned.