Question 1

How do you say Baryonyx?

Accepted Answer

Baryonyx is pronounced bah-ree-ON-icks. The stress falls on the third syllable, ON. Break it down like this: bah, then ree, then ON, then icks. Say it a few times fast and it starts to feel natural. The Natural History Museum in London, which houses the original skeleton, uses this same pronunciation.

Question 2

What does Baryonyx mean?

Accepted Answer

Baryonyx means Heavy Claw in Ancient Greek. Barys means heavy or strong, and onyx means claw. The name refers to the enormous curved thumb claw that was the first part of the dinosaur ever discovered. That single claw measured around 31 centimeters long, roughly the length of a human forearm, which definitely earns the name.

Question 3

How big was Baryonyx?

Accepted Answer

Baryonyx was about 31 feet long, which is roughly the length of a double-decker bus. It weighed around 3,300 pounds, heavier than a full-grown white rhinoceros. It walked on two legs and stood perhaps 8 feet tall at the hip. For a two-legged predator, it was powerfully built, especially in the arms, which were much stronger than those of most other theropods.

Question 4

Was Baryonyx dangerous?

Accepted Answer

Absolutely. Baryonyx was a large apex predator with nearly 96 finely serrated teeth, an enormous hooked thumb claw, and powerful forelimbs. Fossil evidence shows it ate large fish and at least occasionally fed on juvenile Iguanodons, which were sizeable dinosaurs in their own right. Anything living near its riverside habitat would have needed to be wary of it.

Question 5

What did Baryonyx eat?

Accepted Answer

We know for certain that Baryonyx ate fish because paleontologists found partially digested fish scales and bones inside the ribcage of the original skeleton. The fish belonged to a species called Lepidotes. The same skeleton also contained bones from a young Iguanodon, suggesting Baryonyx also ate other dinosaurs, either by hunting them or scavenging. This makes Baryonyx one of the very few dinosaurs where we have direct fossil proof of its actual diet.

Question 6

Where was Baryonyx found?

Accepted Answer

The first and most complete Baryonyx skeleton was found in 1983 at the Smokejack Clay Pit in Surrey, England. Since then, additional fossils thought to belong to Baryonyx or very close relatives have been found in Spain, Portugal, and Tunisia. This suggests that baryonychine spinosaurids were widespread across the ancient landmasses of Europe and possibly northern Africa during the Early Cretaceous period.

Question 7

When did Baryonyx live?

Accepted Answer

Baryonyx lived during the Early Cretaceous period, approximately 130 to 125 million years ago. This was a time when what is now southeastern England was a warm, subtropical environment with extensive rivers, lakes, and coastal wetlands, similar in some ways to the Florida Everglades today. Baryonyx shared this world with plant-eating dinosaurs like Iguanodon and a variety of large fish and crocodilians.

Question 8

Is Baryonyx related to Spinosaurus?

Accepted Answer

Yes, Baryonyx is a close relative of Spinosaurus. Both belong to the dinosaur family Spinosauridae, a group of large fish-eating theropods that dominated riverine habitats in Europe, Africa, and South America during the Cretaceous. Baryonyx is actually the species that gave its subfamily, Baryonychinae, its name. Think of it like Baryonyx being a cousin in the same family as the largest carnivorous dinosaur ever discovered.

Question 9

Who discovered Baryonyx?

Accepted Answer

Baryonyx was discovered by William J. Walker, an amateur fossil collector, in January 1983. He spotted an unusual claw sticking out of the wall of the Smokejack Clay Pit in Surrey, England, and brought it to the Natural History Museum in London. Professional paleontologists recognized immediately that it was something new to science. The species was formally named Baryonyx walkeri in 1986, with walkeri honoring Walker for his extraordinary find.

Question 10

Did Baryonyx have feathers?

Accepted Answer

No direct evidence of feathers has been found on Baryonyx. The fossil record for Baryonyx consists mainly of bones, and no skin impressions have been recovered. Some scientists think that large theropods like Baryonyx probably had scaly skin rather than feathers, since feathers may have been more common in smaller theropods or as limited patches in juveniles of larger species. For now, this remains an open question.

Question 11

How does Baryonyx compare to Suchomimus?

Accepted Answer

Baryonyx and Suchomimus are very closely related spinosaurids. Suchomimus, found in Niger, Africa, was slightly larger, estimated at around 36 feet long compared to Baryonyx at 31 feet. Both had the same long crocodile-like skull, large thumb claws, and fish-eating adaptations. Some paleontologists have debated whether they should be classified as the same genus, but currently they are treated as separate but closely related genera within the subfamily Baryonychinae.

Question 12

Could Baryonyx swim?

Accepted Answer

Scientists are actively debating this. A major 2022 study published in Nature analyzed bone density in spinosaurids and found that Baryonyx had denser bones than typical land-living theropods, similar to modern diving birds that use bone density as ballast to stay submerged. This suggests Baryonyx may have entered the water regularly, not just waded at the edges. However, other paleontologists disagree and think it was primarily a land animal that fished from the bank or in shallow water. The debate is ongoing.

Question 13

Is Baryonyx in any movies or games?

Accepted Answer

Yes. Baryonyx appears in Jurassic World: Fallen Kingdom, released in 2018, where a pack of them menaces characters in the ruins of the original Jurassic Park. It also appears in the Jurassic World: Camp Cretaceous animated series on Netflix and in the Jurassic World Evolution video game. The movie versions are reasonably accurate in overall body shape, though like most film dinosaurs they take some creative liberties with size and behavior.

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