All posts tagged with smithsonian-libraries-unearthed

I’m a Deep Time – Peter Buck Fellow in the Department of Paleobiology at the Smithsonian’s National Museum of Natural History where I study the ecology and evolution of prehistoric vertebrates, especially fossil mammals from the Indian subcontinent. The Indian subcontinent has one of the richest mammalian fossil records anywhere in the world. The Siwalik Hills and surrounding regions in Northwest India and Pakistan have a fossil record ranging from about 23 million years ago to about half a million years ago, making this region an ideal place to study how mammalian communities have changed through time.

Fossil mammals in India were first discovered by British explorers and naturalists in the 1830s and 40s. Hugh Falconer, Proby Cautley, W.E. Baker, and H.M. Durand discovered one of the largest deposits of fossil mammals from the Pliocene and Pleistocene (3.6 million years to 0.6 million years) in the region between the rivers Yamuna and Sutlej. These fossils eventually made their way back to the Natural History Museum in London and form one of the most important fossil collections in the world. These collections form the basis of my research on the reassessment of the taxonomy of fossil mammals from India, the biogeography of South Asian mammals, and paleocommunity change.

My name is Michelle Pinsdorf, and I am a paleontologist and preparator of fossil vertebrates in the Smithsonian National Natural History Museum’s Department of Paleobiology. Preparators’ work can cover a wide variety of duties, from fieldwork to discovering new fossil specimens, to freeing those specimens from their surrounding host rock in our laboratories, to safely housing specimens for research collections, and helping to build exhibits for specimens going out on display. We call it “grave to cradle” work.

Most of the time you’ll find a fossil preparator leaning over a lab bench with a fine tool in hand, peering through a microscope and exposing the details of a fossil that helps researchers identify and publish about it. But for the past five years, my lab colleagues and I have been working on the renovation of the Natural History Museum’s fossil exhibits. This has involved the dismantling of many previously exhibited fossil mounts to allow for the conservation of the fossils and remounting them in new poses and settings. With the significant scientific value of these fossils, a lot of research and planning happens before each individual specimen is worked on.

I’m Bonnie Felts, and I am a library technician for Smithsonian Libraries at the Natural History Museum. What most people don’t realize about our museum is that we have a total of 11 separate library locations, and I work with five of the collections. I am primarily responsible for the Vertebrate Paleontology library, which requires fielding reference questions, purchasing materials pertinent to the collection, and the overall care of the materials. Although in numbers, the library is relatively small compared to other libraries in our building, it is one of the most comprehensive Vertebrate Paleontology literature collections in the world.

I study sloths, and as popular as they have become on the internet, the thing most people do not realize is that we are living in a world majorly deprived of most types of sloth. Today there are only two types of sloths: two-fingered (genus Choloepus) and three-fingered (genus Bradypus). (You may have heard them referred to a two-toed and three-toed, but they both have three digits on their hind limb, so the difference is on the forelimb, in other words, their hand, hence: fingers.) There are only a few species of each kind of sloth and they all live in the trees of tropical rainforests in Central and South America.

But back in prehistoric times, there were many types of sloths: more than 80 genera across five different families. They lived as far north as the Yukon Territory and Alaska, as far south as Patagonia, and stretched from coast to coast in the United States and even colonized islands throughout the Caribbean. The smallest of these fossil sloths were still bigger than any sloth alive today, and the biggest extinct sloths were the size of modern elephants (but could probably walk around on two legs like an awkward bear). All this means there is a lot to learn about the sloths that are no longer with us.

Fake fossils are a difficult issue for modern paleontologists: there is a booming black market in forgeries, and well-intentioned researchers of the past have even managed to accidentally fool the curators of today with detailed reconstructions! The black market manufacturers have money on their minds and past researchers were simply doing their jobs to the best of their abilities, but one historical case of forged fossils stands out as particularly sinister. The victim was a certain Dr. Johann Bartholomew Adam Beringer (1667-1738), a professor at the University of Wurzburg. The perpetrators: Beringer’s very own colleagues, J. Ignatz Roderick and Georg von Eckhart.[1] This sordid tale resulted in unfortunate endings for all three of the parties involved, but also produced a curious monograph entitled Lithographia Wirceburgensis which can be found digitized in our Unearthed! digital collection.

This blog post is the first in a series from Smithsonian Libraries highlighting Unearthed, a new BHL collection of paleobiology literature curated by Smithsonian Libraries in celebration of the opening of the National Museum of Natural History’s David H. Koch Hall of Fossils – Deep Time exhibit. Additional posts will publish throughout 2019, so check back regularly for more fossil fun. Explore the Unearthed collection today.