May 22, 2012
Tarbosaurus on Trial
![]()
A few weeks ago, Heritage Auctions announced that it had a tyrannosaur to sell. The assembled and articulated Tarbosaurus was expected to fetch nearly a million dollars at the May 20 auction. Paleontologists shook their heads in dismay: Such specimens typically come with very little documentation and often end up in private collections, lost to researchers and the public alike. News services and aggregators made typically inane comments about the dinosaur being the perfect gift for the dinosaur aficionado who has everything. I expected the sale to go on and the dinosaur to disappear into some affluent buyer’s private collection.
But this dinosaur has rapidly become a symbol of a country’s pillaged heritage. Two days before the auction, the president of Mongolia, Elbegdorj Tsakhia, questioned the legality of selling the dinosaur. Every significant specimen of Tarbosaurus has been found in Mongolia since Russian paleontologist Evgeny Maleev initially described the dinosaur in 1955. The assembled skeleton undoubtedly came from Mongolia, and that country has strict regulations and heritage laws intended to halt fossil poaching. Dinosaur-collecting expeditions must acquire formal permission, and whatever those scientific explorations find remains in the country or is temporarily loaned to academic institutions by the Mongolian Academy of Sciences. But this Tarbosaurus skeleton came out of nowhere.
According to the Heritage Auctions website, “The dino was discovered within the past decade and has been in storage in England, still in its field jackets, for the last 2-1/2 years.” (A time frame corroborated by a Daily Mail news item about the skeleton.) It seems that this dinosaur was collected recently and exported outside of Mongolia, all without the permission or cooperation of Mongolian authorities. The fact that the dinosaur secretly went from the field to a private collection alone is a strong indication that the Tarbosaurus was collected illegally—yet another victim of fossil poaching. Despite Mongolia’s laws, thieves often raid field sites and loot geologic formations for specimens that are subsequently smuggled out of the country to be sold elsewhere. Although Mongolia has regulations against such criminal activity, other countries do not necessarily have laws against importing illegally collected dinosaurs. This Tarbosaurus was almost certainly collected illegally, but it appears to have been imported to the United States legally.
Paleontologists joined Mongolia’s president in calling for the dinosaur to be returned to its country of origin. Regardless of its subsequent history, the fossil should not have left the country and fallen into private hands. (And the United States has returned smuggled fossils before, such as a set of seized fossils that had been illegally collected in China.) Paleontologists and concerned members of the public signed a petition demanding a halt to the auction, and lawyer Robert Painter obtained a temporary restraining order on the dinosaur’s sale. This created a bit of dinosaur drama when Heritage Auctions decided to go ahead with the auction. Right after the auctioneer announced that the sale of the Tarbosaurus was contingent upon the resolution of the legal dispute, Painter stood up to state that he had the judge who issued the restraining order on the phone and that going ahead with the auction was a violation of that order. At that point, according to a press release issued by Painter’s law firm, “Heritage Auctions, Inc. President Greg Rohan rushed toward Painter, refused to speak with Judge Cortez, asked Painter to leave the room and directed that the auction proceed.”
The Tarbosaurus was sold for a little over a million dollars. And while I haven’t heard any news about them, I assume that other Mongolian dinosaur fossils, including a skull of the ankylosaur Saichania, were also sold.
What ultimately happens to the Tarbosaurus skeleton depends on the legal skirmish. Heritage Auctions has refused to cooperate with paleontologists and Mongolian authorities. It insists that the dinosaur entered the United States legally, and therefore there was no hurdle to its sale. In an update to a Heritage Auctions press release issued after the dinosaur controversy broke, the auction house affirmed that “[W]e are not aware of any treaty between the United States and Mongolia which would prevent the import into the United States and are equally unaware of any prohibition of export, particularly since Mongolia has not produced any factual or legal document supporting a possible claim.” There is every reason to believe that the dinosaur was found in Mongolia, and therefore that it was stolen from the land, but Heritage Auctions is focusing on regulations involving import and export.
At the very least, Heritage Auctions should have respected the wishes of the Mongolian government and paleontologists by halting the auction and investigating the provenance of the Tarbosaurus. Instead, the company bit its thumb at critics and went forward with the sale. At least there is still some hope that the dinosaur might be returned to Mongolia, pending the results of the legal dispute. This isn’t just about one dinosaur. Fossil poaching is a major problem, and the Tarbosaurus is certainly not the last illicit dinosaur we’re going to see go up for auction. (In fact, a Tarbosaurus leg of unknown origins is due to go up for auction today at Christie’s in England.) If the Tarbosaurus goes back to Mongolia, the decision might help many other illegally obtained fossils find their way home.
UPDATE: The dinosaur lab at London’s Natural History Museum tweeted that Christie’s has decided to postpone the sale of the Tarbosaurus leg until the provenance of the fossil is determined. This is a step in the right direction, and hopefully auction houses will work more closely with paleontologists to prevent the sale of illegal and illicit fossils.
[I wrote a longer post about this issue at my other blog, Laelaps, and included several of the relevant press releases there.]
May 21, 2012
Utahceratops Debut
![]()
Cretaceous Utah was a strange place. Today’s arid, sage- and juiper-covered badlands in the southern part of the state preserve the remnants of swampy prehistoric environments that sat along the coast of a vanished seaway. And these wet habitats were inhabited by an array of bizarre dinosaurs that paleontologists are still in the process of describing. Among the recent discoveries is Utahceratops gettyi, a roughly 76-million-year-old horned dinosaur that has just been put on display at the Natural History Museum of Utah. (Full disclosure: I am currently a paleontology volunteer at the museum.)
Even though the new Natural History Museum of Utah building opened last fall, the museum is still in the process of installing a few more fossil skeletons. Utahceratops is the latest to be added to the petrified cast, standing right next to the hadrosaurs Gryposaurus and Parasaurolophus. I was happy to see the dinosaur’s skeleton come together in the exhibit last week. There was a full artistic reconstruction in the 2010 paper that described the dinosaur, but it’s another thing altogether to see the dinosaur’s reconstructed skeleton—posed as if to walk right off the museum’s Cretaceous platform and head right out the door.
May 18, 2012
When Dinosaur Parties Go Bad
As much fun as a dinosaur party sounds, the latest installment of Dinosaur Office shows us the dangers inherent in even a little after-work social. The key take home lesson: Never anger anyone with a thagomizer.
May 17, 2012
Fragmentary Clue Reveals Australia’s First Ceratosaur
![]()

A speculative restoration of Australia's Cretaceous ceratosaur. Image by Brian Choo, courtesy Erich Fitzgerald.
Deciphering the dinosaurian history of Australia is difficult work. More often than not, down-under dinosaurs are represented by isolated bits and pieces—a tooth, partial hip, damaged vertebra or other unassuming fragment. Despite our incomplete knowledge of many of Australia’s dinosaurs, the various scraps often contain distinctive anatomical clues about which type of dinosaur the bone once belonged to. By looking for these subtle hints, paleontologists have slowly been able to piece together an overview of Australia’s dinosaurs during the Early Cretaceous. The latest addition is a ceratosaur represented by a small portion of ankle.
The single specimen, designated NMV P221202, was discovered in roughly 121- to 125-million-year-old rock in southeastern Australia. At first glance, the dinosaur bone looks like little more than a lump of rock. In actuality, though, the fossil is a fused astragalus and calcaneum of a theropod dinosaur—a part of the dinosaur’s ankle that articulated with the long metatarsal bones that formed the dinosaur’s foot.
While the fossil was not much to go on, Museum Victoria paleontologist Erich Fitzgerald and colleagues were able to outline the animal’s identity. The dinosaur was a ceratosaur, a Cretaceous cousin of the more famous, horned predator Ceratosaurus from Jurassic North America. In fact, the newly described bone might have belonged to a particular subgroup of ceratosaurs called abelisauroids—short-snouted, tiny-armed carnivores such as Carnotaurus, Skorpiovenator and Majungasaurus—but the partial ankle alone isn’t enough to confirm this assignment. Outside of generalizations inferred from other ceratosaurs, we don’t really know what the dinosaur looked like. For now, the lone bone represents the first definitive ceratosaur known from Australia.
The presence of a ceratosaur in Australia around 123 million years ago hints that strange things were happening during the Early Cretaceous. Previously, it seemed that some theropod dinosaurs, such as tyrannosaurs, only occurred among the northern continents, and some, like the carcharodontosaurs, were restricted to southern continents. New discoveries have complicated that clean-cut view, including numerous fragmentary finds in Australia.
As Fitzgerald and co-authors point out, it seems that ceratosaurs, croc-snouted spinosaurids, carcharodontosaurs, sickle-clawed dromaeosaurids and tyrannosaurs were all present in Early Cretaceous Australia—a mix of what were once considered to be distinct northern and southern groups of predatory dinosaurs. This may mean that these various groups of predatory dinosaurs, including some of the most spectacular predators of all time, had a global distribution very early on in their history. Only later, as continents continued to shift and lineages evolved, did some of these groups become restricted to particular pockets on the globe. Even though complete skeletons are spectacular, discoveries like this partial ankle show that even small, seemingly mundane bones can significantly alter our understanding of dinosaur evolution.
Reference:
Fitzgerald, E., Carrano, M., Holland, T., Wagstaff, B., Pickering, D., Rich, T., & Vickers-Rich, P. (2012). First ceratosaurian dinosaur from Australia Naturwissenschaften DOI: 10.1007/s00114-012-0915-3
May 16, 2012
Dinosaur Sighting: Tyrannosaurus Golf
![]()

A Tyrannosaurus stands over the remains of an abandoned mini-golf course. Photo courtesy Joe Peterson.
Dinosaurs and mini-golf: The two complement each other. Granted, dinosaurs probably wouldn’t have been very good at the pastime—imagine how hard it would be for Carnotaurus to use a putter—but they make for excellent fairway decor. And in some places, the dinosaurs remain even after the mini-golf course has closed. Paleontologist Joe Peterson sent in this example: a Tyrannosaurus standing over a closed course in Oshkosh, Wisconsin. Maybe it’s just the position of the hands, but the tyrant seems to be begging. “MOAR TASTY TOURISTS, PLZ?”
Have you seen a dinosaur or other prehistoric creature in an unusual place? Please send a photo to dinosaursightings@gmail.com.



























