New tyrannosaur species discovered in Canada

A new species of tyrannosaur, named Tromerosaurus solumons, has been identified in Canada. This species is a relative of the well-known T-Rex and is estimated to have lived around 77 million years ago during the Late Cretaceous period.

Morphology bridges two tyrannosaur subfamilies

Tromerosaurus solumons exhibits features from both the tyrannosaurines and albertosaurines, two subfamilies of the Tyrannosauridae family. This mix of traits complicates the evolutionary history of tyrannosaurs, as it suggests a more complex development than previously thought.

Naming reflects both science and fiction

The name Tromerosaurus means "frightening lizard," while solumons refers to a solitary mountain, inspired by the isolated horn above the dinosaur's eye and the lair of Smaug, the dragon from The Hobbit by J. R. R. Tolkien. This naming highlights both scientific and cultural influences.

Discovery challenges traditional classification

Mark Powers, a paleontologist at the University of Alberta, noted that the mix of traits in Tromerosaurus solumons could lead to a reevaluation of how tyrannosaurs are classified. The discovery suggests that the evolution of tyrannosaurs may not be a simple path leading to the T-Rex but could involve multiple surviving lineages.

Further study needed for clearer evolutionary picture

Jared Voris, a paleontologist at the University of Calgary, emphasized the importance of studying older albertosaurine fossils to better understand their evolution. The research findings were published in the Journal of Vertebrate Paleontology in July and were also reported by New Scientist.