First Diplodocus Fossil Outside North America Found in Spain 2026

The first Diplodocus fossil outside North America has been discovered in Teruel, Spain, at the La Tejería site in El Castellar. This find challenges the long-held belief that these long-necked dinosaurs were exclusive to the western United States.

For decades, all known Diplodocus specimens came from the Morrison Formation in North America. Now, a new study published in the Journal of Vertebrate Paleontology confirms the presence of this genus in Europe during the Late Jurassic, about 150 million years ago.

What Exactly Was Found in Teruel?

Paleontologists recovered an exceptionally well-preserved set of tail remains from the La Tejería site. The collection includes 14 tail vertebrae and several chevrons—the Y-shaped bones located beneath the vertebrae.

These bones are characteristic of Diplodocus, a dinosaur known for its long neck and whip-like tail. The preservation quality is remarkable, allowing researchers to confidently identify the genus.

According to El País, this is the first record of the Diplodocus genus outside northern America. The discovery opens new avenues for research and suggests that these dinosaurs may have roamed far beyond the American West.

Why Is This Discovery So Extraordinary?

Until now, Diplodocus fossils were thought to be confined to a specific geographic region. The Morrison Formation, spanning parts of Colorado, Wyoming, and Utah, has yielded numerous specimens and provided most of our knowledge about these dinosaurs.

Finding a Diplodocus in Spain means that the genus had a much wider distribution than previously believed. It also raises questions about how these large herbivores migrated across landmasses during the Jurassic.

During the Late Jurassic, the geography of Earth was very different. Continents were connected in ways that allowed dinosaur populations to spread. This find supports the idea of faunal exchange between North America and Europe.

What Do We Know About the Spanish Diplodocus?

The specimen from Teruel lived approximately 150 million years ago, during the Late Jurassic. At that time, the Iberian Peninsula was part of a larger landmass, and the climate was warmer and more humid.

The tail vertebrae and chevrons are now on display in a museum, offering the public a chance to see this rare find. Researchers are continuing to study the bones to learn more about the individual's age and size.

This discovery also highlights the importance of the La Tejería site, which has already produced other significant fossils. It suggests that Spain holds valuable clues about dinosaur evolution and distribution.

How Does This Change What We Know About Diplodocus?

The traditional view of Diplodocus as a strictly North American dinosaur is now outdated. This find forces paleontologists to reconsider the biogeography of Jurassic dinosaurs.

It also encourages further exploration in Europe and other regions for similar fossils. If Diplodocus could cross between continents, other dinosaurs might have done the same.

Moreover, the study demonstrates the value of international collaboration and careful fossil analysis. The identification was based on detailed anatomical comparisons with known North American specimens.

• First Diplodocus fossil found outside North America, in Teruel, Spain.
• Specimen includes 14 tail vertebrae and several chevrons, exceptionally preserved.
• Dinosaur lived about 150 million years ago during the Late Jurassic.
• Discovery challenges the idea that Diplodocus was exclusive to the American West.
• Opens new research directions for dinosaur migration and biogeography.

Comparison of Diplodocus Fossil Sites

The table above contrasts the well-known North American sites with the new Spanish locality. While the Spanish find is less complete, it is no less significant for what it represents. The longer history behind the story is traced in First Diplodocus Fossil Outside North America Found in Spain.

What to Watch Next

Researchers will likely continue excavating at La Tejería and other sites in Spain. More material could reveal whether this Diplodocus belongs to a known species or a new one. The background to this story is set out in Ichthyosaurus Anningae Fossil Discovered in Spain by Accident. A related thread runs through Protect Fossil Heritage: Stop Hammer-Wielding Tourists. Earlier coverage in Fossil Hunting on Dorset Beaches: A Lucrative Business shows how the argument developed.

Additionally, the study may prompt re-examination of museum collections in Europe for misidentified fossils. There could be other Diplodocus remains hiding in plain sight. A closer look at the same subject appears in El Niño Supercharged by Fossil Fuels: New Study. Anyone following the wider picture can start with Matthias Jaissle Urges Newcastle to Ignore Outside Negativity. The same theme surfaces in Energy Utilities: latest articles, which takes a different angle.

As paleontologists dig deeper, our understanding of dinosaur distribution will keep evolving. This discovery is a reminder that even well-studied dinosaurs can surprise us. Context on how this played out before sits in 300 Glaciers Gone From Western US Since Mid-20th Century. A companion piece, Pigs Left for Shipwreck Survivors Evolve on Auckland Islands, approaches the same subject from another angle.