The research team concluded that the specimen was potentially the oldest mosasaur ever found.
A fossil, discovered by a Bureau of Land Management team in Utah, is unlocking new information about the evolution of a marine reptile family during the later part of the dinosaur age. , focus on a 94-million-year-old mosasaur that was discovered in the badlands of the National Park Service Glen Canyon National Recreation Area.
"After that ‘Eureka!’ moment, a joint BLM-National Park Service crew recovered nearly 50% of the specimen over the course of the next two field seasons, including enough skull to determine its exact identity,"a Scientists discover well-preserved fossilized dinosaur egg in China The team included Steve Dahl, the longest-serving paleo volunteer at the time. Dahl’s contributions to the project were later honored in the species name, Sarabosaurus dahli, or "Dahl’s reptile of the mirage." The name alludes to both the seaway in which this animal swam that has long since vanished and the mirages that accompany the region’s extreme summer heat, the department noted.
The research team said its understanding of mosasaurids has significantly advanced in the past few decades fueled by new discoveries and the restudy of historical specimens, revealing a diverse and complex early evolutionary history of the group.
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