As if a 125th anniversary weren’t monumental enough, a new dinosaur is moving into the Field Museum — a titanosauric one.

Cast of Patagotitan mayorum, the Field’s new specimen is a giant, long-necked Titanosaur from Argentina, aptly named Maximo. From snout to tail, it stretches 122 feet (in case you need visuals, that’s longer than two accordion CTA buses end-to-end—and about the length of 25 Danny DeVitos).

Field Museum Maximo

Maximo isn’t the only new addition to the Field’s emblematic Stanley Field Hall. He’ll be joined by a flock of pterosaur (flying reptile) replicas, as well as state-of-the-art hanging gardens to mark the institution’s 125th anniversary. The pterosaur replicas include nine hawk-sized Rhamphorhynchus (ram-foh-RINK-us), two Pteranodon (teh-RAN-oh-don) with 18-foot wingspans, and two giant Quetzalcoatlus (ket-zal-co-AHT-lus), whose wings span a staggering 35 feet.

Pteranodon replica - Field MuseumPteranodon replica, courtesy, Field Museum of Natural History

“Our goal as an institution is to offer visitors the best possible dinosaur experiences, and we want that to start right when visitors first enter Stanley Field Hall,” says Field Museum President Richard Lariviere. “The new hanging gardens and the flock of pterosaurs will take our visitors back to the age of the dinosaurs and will complement the new Titanosaur.”

When’s it all happening? Excitingly soon — over the next few months, in fact. However, lovers of the Museum’s iconic SUE the T. rex might be a little weepy to hear she’ll be moving from the main Hall to a new 5,800-square-foot gallery space as part of the Evolving Planet exhibit to make room for her new housemate. Fortunately, SUE doesn’t feel bad about it at all.

In an official press release, SUE (reachable on Twitter @SUEtheTrex), explained that, “For years now, I’ve been pitching this to the Museum. A room with a better defensible position against velociraptor attacks and reduced exposure to possible meteorite collisions. Finally, the mammals in charge have come to their senses.”

SUE - Field Museum

SUE, courtesy, Field Museum of Natural History

Visitors will witness SUE’s deinstallation beginning February 5, and throughout the month, with her reappearance scheduled for February 2019. What’s more, beginning in May, you’ll get a close-up-and-personal look at Titanosaur’s installation, which is estimated to take less than a month.

Dinosaurs are notorious social media hogs, which means Maximo is super happy about becoming the Field’s new selfie darling. Visitors will be able to touch the cast, walk underneath it and grab an eye-to-eye glimpse from the second-floor balcony (yes, Maximo really is that tall). Some of its real bones also will be on display, including a whopping 8-foot-long thighbone.

In the meantime, SUE will be getting a bit of a spa makeover in the “gastralia” department. The gastralia are a set of bones that look like an additional set of ribs stretched across T. rex’s belly. To date, SUE’s gastralia haven’t been attached to the rest of her skeleton. That’s because gastralia are rarely preserved in Tyrannosaurs, and scientists weren’t quite sure how to position them when the skeleton was first mounted in 2000. Ongoing research now gives a clearer picture of where SUE’s gastralia belong and their function in facilitating breathing.

T. rex had a bulging belly—it wasn’t sleek and gazelle-like the way you might think from looking at SUE now without gastralia,” says Associate Curator of Dinosaurs Pete Makovicky. “We’ll also update the body stance, so SUE will be walking rather than skulking; the arms will come down a little, and we’ll readjust the wishbone.”

She’ll also get a little of the “This is Your Life” treatment. The new exhibition space will tell SUE’s story in detail, including fossils discovered alongside her that illustrate the world in which this T. rex lived, cutting-edge multimedia technology, and digital interactives.

“At 40.5 feet long, she’s the world’s biggest T. rex, but in that giant hall, people sometimes remark that she’s smaller than they expected,” explains Senior Exhibitions Project Manager Hilary Hansen. “By putting her in her own gallery in our Evolving Planet exhibition, she’ll be put into the proper context of her fellow dinosaurs, and she’ll dominate the room.”

Goodbye SUE! But not for very long.

The details

The Field Museum is located at 1400 S Lake Shore Dr, and is part of Chicago’s Museum Campus (also comprising the Shedd Aquarium and Adler Planetarium). The Museum is open 9am-5pm daily except Christmas, with last admission at 4pm. Admission: Adults $36, Students $31, Children aged 3-11 $25, Seniors $31. Call (312) 922-9410 for more information, or visit

Tip: For the month of February, the Field Museum is hosting free general admission for Illinois residents with valid proof of residency.