Baryonyx
Name meaning:
Heavy claw
Period of life:
130-125 mya
Period:
Habitat:
Floodplains
Taxonomy:
Theropods
Countries:
Baryonyx was one of the most unusual predators of its time. This theropod reached a length of about 9–10 meters and possessed long, narrow jaws approximately one meter long, lined with 96 sharp, slightly serrated teeth. This type of «trap» was ideally suited for holding slippery, agile prey, primarily fish.
The shape of its snout closely resembled that of a crocodile, but this similarity does not indicate close relationship and instead represents an example of convergent evolution, in which unrelated animal groups independently develop similar traits in response to comparable ecological conditions and feeding strategies. The largest teeth were located at the front of the jaws, and the nostrils were positioned farther back, allowing Baryonyx to breathe even when its jaws were submerged in water during hunting.
In addition to its formidable jaws, this dinosaur had powerful forelimbs with large, curved claws. One of these claws was particularly prominent—large and heavy—and gave the genus its name: Baryonyx translates as «heavy claw».
Scientists continue to debate how Baryonyx moved. Early discoveries led paleontologists to suggest that it may have walked on four limbs. However, later studies of the skeletons of close relatives, such as Irritator, indicate that Baryonyx most likely moved on its two hind limbs, like most theropods.
Discussions
Other animals