Scientist Discovers Ancient Crocodile Species With Unique Greyhound-Like Features
A newly-discovered ancient crocodile looked nothing like the low-slung, swamp-delling crocodiles you see today.
Instead, it stood upright on long, slender legs and sprinted across dry land with the build of a greyhound. It ate small reptiles, amphibians and early mammals.
More than 200 million years after this creature last roamed what is now the United Kingdom, scientists have formally identified it as a new species — and named it after a secondary school physics teacher in Wales.
A ‘Reptilian Greyhound’ Built for Speed
The species, Galahadosuchus jonesi, was described in the journal The Anatomical Record by a team led by Ewan Bodenham, a PhD student at the Natural History Museum London and UCL.
The animal lived entirely on land during the Late Triassic period. Its long legs, upright posture and light frame prompted scientists to compare it to a “reptilian greyhound,” according to photos shared by the team.
The fossils were found near Gloucester, UK, in fissure deposits on both sides of the Bristol Channel in southern Wales and southwest England.
At the time, the region was an upland environment surrounded by hot, arid plains — a landscape almost unrecognizable compared to the green, rain-soaked British countryside of today.
Animals that died in this area were washed into caves and buried by sediment, preserving their remains for researchers to discover millions of years later.
The discovery adds to scientists’ understanding of crocodylomorphs, the broader group that includes modern crocodiles and alligators.
The Welsh High School Teacher Behind the Name
Bodenham chose the name Galahadosuchus jonesi with deliberate meaning on both counts.
The genus name references Sir Galahad, the Arthurian knight known for his moral uprightness, reflecting the animal’s upright stance — a posture that set it apart from its modern, sprawling relatives.
The species name honors David Rhys Jones, a secondary school physics teacher in Wales who taught Bodenham and was credited with inspiring his interest in science.
“We named it after my secondary school physics teacher,” says Bodenham. “Mr Jones was just such a good teacher, not only in being able to explain things well, but you could tell that he was genuinely interested in the sciences. I think that really inspired me.”
“He also didn’t let me settle. He was very good at challenging people and helping students be the best they can be. Above all, he’s a very funny, genuine, nice guy.”
For Bodenham, that early encouragement from Jones grew into a career exploring the deep history of life on earth.
How Bodenham Confirmed the New Species
Identifying a new species requires painstaking anatomical comparison with known relatives. Bodenham’s team compared the fossils to a related species called Terrestrisuchus.
“My PhD project is looking at the evolutionary relationships of these early crocodiles,” Bodenham explains. “So we conducted a detailed anatomical description of this specimen, making comparisons to other early crocodiles to determine if it was another specimen of Terrestrisuchus or if it was something new.”
After detailed analysis, the team identified 13 key differences between the Terrestrisuchus and Galahadosuchus fossils. Those differences were significant enough to classify it as an entirely new species. The research was described in a Natural History Museum press release.
A Far More Diverse Family Tree
Galahadosuchus jonesi belongs to Crocodylomorpha, one of the group’s early ancestors.
The differences between this species and the crocodiles alive today are stark: it lived entirely on land and had long legs rather than a low, semi-aquatic body.
Today’s crocodiles, alligators and gharials represent just a small surviving branch of a once-vast lineage.
Early members of this group, like Galahadosuchus, occupied ecological roles that look very different from the ambush-predator lifestyle associated with modern species.
Life Before a Mass Extinction
The timing of Galahadosuchus jonesi’s existence adds another dimension to the find.
The species lived shortly before the Triassic–Jurassic mass extinction, an event caused by massive volcanic activity that altered the climate and reshaped ecosystems across the planet.
Studying species from this period helps scientists understand the ecosystem diversity that existed before the extinction and how animals responded to major environmental change.
Each new species discovered from this era adds another piece to a puzzle about what the world looked like in the final stretch before that catastrophic turning point.
A fast, agile reptile that hasn’t walked the earth in roughly 200 million years now bears the name of a teacher whose influence endured long enough to reach the pages of a scientific journal.
For a creature preserved in ancient stone near Gloucester, that’s not a bad legacy to carry.
Production of this article included the use of AI. It was reviewed and edited by a team of content specialists.
