Bizarre beaked reptile from New Mexico turns out to be a toothless cousin of crocodiles
Yahoo • • general
Key Points:
- Researchers have identified a new prehistoric reptile species, Labrujasuchus expectatus, from Triassic-era fossils found in New Mexico, which resembles a dinosaur but is actually a distant relative of modern crocodiles.
- The species, dating back about 212 million years, had a beak, no teeth, tiny arms, and walked on two hind legs, differing from other North American shuvosaurids by subtle anatomical features like the humerus.
- Labrujasuchus expectatus belonged to a crocodile-lineage side branch, not a direct ancestor of modern crocodiles and alligators, illustrating convergent evolution where unrelated species develop similar traits.
- Scientists are unsure of the reptile's diet, but suspect it may have been carnivorous or a scavenger despite lacking teeth, highlighting the diversity and evolutionary experiments of ancient reptiles.
- This discovery enhances understanding of prehistoric ecosystems, evolutionary processes, and helps reconstruct the history of life on Earth, emphasizing the ongoing value of fossil sites in the American Southwest.