Paleontologists have made a significant discovery with the identification of Tylosaurus rex, a massive marine predator, from fossils found in Texas. This newly described species, a mosasaur, lived approximately 80 million years ago during the Cretaceous Period and measured up to 43 feet long.
Discovery and Identification
The research, led by Amelia Zietlow from the History Museum at the Castle in Appleton, Wisconsin, involved reclassifying fossils that had been misidentified for decades. These fossils were initially thought to belong to a closely related species, Tylosaurus proriger. The study, published in the Bulletin of the American Museum of Natural History, highlights the importance of museum collections in scientific breakthroughs.
Fossils of Tylosaurus rex were found in what is now Texas, a region that was partly covered by an inland sea during the Cretaceous Period. This discovery underscores the diversity of marine life that thrived alongside dinosaurs on land.
Community Involvement
The discovery of Tylosaurus rex was made possible through the involvement of amateur paleontologists in the Dallas area, who contributed to the collection of specimens. This collaborative effort between professionals and hobbyists showcases the potential of community involvement in paleontology.
Characteristics of Tylosaurus rex
Tylosaurus rex was an apex predator in its ecosystem, with sawlike teeth capable of tearing through prey such as fish, turtles, and plesiosaurs. The species was larger than its relative, Tylosaurus proriger, and had distinct features like serrated teeth and heavier jaw muscles, allowing for a more forceful bite.
The holotype of Tylosaurus rex, the most complete skeleton of the species, is displayed at the Perot Museum of Nature and Science in Dallas. This discovery adds to the understanding of the diversity within the Tylosaurus genus, previously thought to be less varied.
Future Research
The research team, including Michael J. Polcyn from Southern Methodist University, continues to explore the implications of this discovery. Further studies are underway to expand the understanding of Tylosaurus rex and its role in ancient marine ecosystems.
Original reporting: KCCI Des Moines — read the source article.
