New dinosaur species with neck as long as cricket pitch discovered in Thailand

A groundbreaking discovery has been made in northern Thailand, where paleontologists have identified a previously unknown species of dinosaur that could rival some of the largest creatures to ever walk the Earth. The newly named Uragasaurus kalasinensis was unearthed in Kalasin Province, located in the northeastern region of the country. This remarkable find adds to the growing list of prehistoric discoveries in Southeast Asia and highlights the area’s rich geological history. The dinosaur, believed to have roamed the Earth approximately 150 million years ago during the Late Jurassic period, was a massive herbivore with an exceptionally long neck. Scientists estimate that Uragasaurus kalasinensis reached lengths of up to 20 meters—roughly equivalent to the length of a cricket pitch. Its elongated neck would have allowed it to access foliage at varying heights, a common adaptation among sauropods, a group of large, long-necked dinosaurs. The discovery was made possible by a combination of chance and systematic research. In 2008, a local resident stumbled upon fossil fragments near the Phu Noi site, initially mistaking them for pieces of serpent scales. These initial findings sparked interest among researchers, leading to more extensive excavations over the following years. Dr. Apirat Niphanaphan, a paleontologist from Mahasarakham University and the lead researcher on the project, explained that the site has yielded a wealth of fossils, with over 90% of the material collected being dinosaur-related. Among these finds, one particular fossil stood out—a well-preserved dorsal vertebra, or a bone from the mid or upper section of the spine. A detailed analysis using computed tomography (CT) scans revealed unique anatomical features that distinguished Uragasaurus kalasinensis from other members of the Mamenchisauridae family, a group of sauropods known for their extraordinary neck lengths. The scans uncovered a distinct Y-shaped configuration of supportive structures called laminae, along with a specialized air cavity system that is unlike anything seen in other dinosaur species. Dr. Niphanaphan emphasized the significance of these features, stating that the air-cavity structure was particularly unusual and marked the species as a singular entity within the broader dinosaur family tree. He described the moment of realization as both exhilarating and relieving, noting how the discovery confirmed months of painstaking work and speculation. The research detailing the discovery was recently published in the prestigious scientific journal Nature, marking a significant milestone for Thai paleontology. The paper outlines the process of identification, the anatomical peculiarities of the species, and its placement within the larger evolutionary framework of sauropods. This publication underscores the importance of international collaboration and local expertise in uncovering the mysteries of prehistoric life. This is not the first time Thailand has made headlines for its dinosaur discoveries. Earlier this year, another long-necked herbivore, the Nagatitan, was identified based on fossils found in the same region. Weighing around 27 tonnes—comparable to the combined weight of nine adult Asian elephants—and measuring nearly 27 meters in length, the Nagatitan holds the title of the largest dinosaur ever recorded in Southeast Asia. These recent revelations suggest that Thailand may be home to a diverse array of prehistoric megafauna, offering valuable insights into the ecosystems and environmental conditions of the Late Jurassic era. As further studies and excavations continue, scientists anticipate uncovering even more information about the ancient world that once thrived in this region.