Rhydian Evans
Scientists found a new species of springs on the Grand Canyon, which was baptized Kraytdraco watchedin reference to the Dragon of Star Wars.
In September 2023, a scientific expedition to the Grand Canyon revealed an unusual fossil that is intriguing paleontologists. The team, led by Giovanni Mussini, a doctoral student in paleontology at Cambridge University, explored 500 million years old rocky deposits from the pinephone period, when he came across fossilized teeth belonging to a peculiar prehistoric predator: one one: one Verme Priapulídeo.
These worms are also known by another name: “Worm.” “They have… a peculiar way,” explains Mussini.
The excavations were now detailed in a published in Science Advances, allowed to identify Two distinct types of tiny teeth – One sharp and one with feathers similar to penalties. Surprisingly, both belonged to the same species, baptized Kraytdraco watchedin reference to the underground dragon of the series The Mandalorian, from Star Wars.
K. Spectatus media between 15 and 20 centimeters and had a retractable pharynx armed with spiral -arranged teeth. Unlike other known priapulids, this species exhibited, besides the pointed teeth on the edge of the pharynx, concentric rings of “emplumated” teeth inside – an unprecedented feature in fossil record. According to Mussini, this configuration may have allowed the animal scrape sediments and carcasses With external teeth, while the interns filtered thinner food particles.
With a name inspired by the Roman god of fertility, priapulids are considered first specialized predatorsof the history of animal life. In the fiery period, sediments excavated, devoured entire prey, and played a key role in the engineering of marine ecosystems. Traces of these worms have already been found in exceptional fossiliferous deposits in China and the famous Burgess shales in Canada, refers to.
Currently, survive about 20 Espécies Priapulídeosmuch smaller, measuring only a few millimeters. Scientists believe these creatures have undergone a miniaturization process over millions of years, however, maintaining a key anatomical characteristics that allowed them to cross 500 million years of evolution.
For Mussini, the discovery not only expands knowledge about the diversity and adaptations of hostel predators, but also reinforces the importance of Grand Canyon as a place of study of primitive life. “The more we look at these fossils, the more we realize that the past was extraordinary creatures who still have a lot to teach us, ”he concludes.
