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Tyrannosaurus

All articles tagged with #tyrannosaurus

science23 days ago•6 min saved

Tooth in Skull Reveals Rare T. rex Attack on Edmontosaurus

Paleontologists describe a nearly complete Edmontosaurus skull with a Tyrannosaurus tooth embedded in its snout and bite marks suggesting a fatal, close-range encounter. CT analysis indicates the tooth broke off during the attack, with the Edmontosaurus unlikely to survive; size estimates point to an adult T. rex with about a 1-meter-long skull. The find provides rare direct fossil evidence of predation and feeding behavior in large theropods, showing T. rex likely hunted and scavenged during its life.

via ScienceAlert|

#bite-marks #edmontosaurus #paleontology

science29 days ago•1 min saved

New Mexico fossil hints at early tyrannosaur ancestor

A New Mexico shinbone dating to 74–75 million years ago may belong to an ancestor of Tyrannosaurus rex. Initially identified as Bistahieversor, the bone was reclassified toward Tyrannosaurus, suggesting early tyrannosaur evolution in NM, though more evidence is needed.

via KOB.com|

#bisti-de-na-zin-wilderness #dinosaurs #new-mexico

science3 months ago•3 min saved

2025 Dinosaur Discoveries: Surprising Finds and Top Highlights

In 2025, paleontologists discovered several new dinosaur species, including a potential missing link in the Tyrannosaurus family tree called Khankhuuluu mongoliensis, a spiky dinosaur with long bones, a megaraptor named Joaquinraptor with preserved diet, and a dome-headed pachycephalosaur in Montana, revealing new insights into dinosaur evolution and diversity.

via USA Today|

#2025-discoveries #dinosaurs #fossil-finds

science5 months ago•3 min saved

New Discoveries Reshape Understanding of Tyrannosaurus and Its Relatives

A recent study provides evidence that Nanotyrannus is a distinct genus from Tyrannosaurus, with two species coexisting in North America during the late Cretaceous, challenging previous assumptions about tyrannosaur ontogeny and diversity.

via Nature|

#cretaceous #dinosaur-diversity #nanotyrannus

science5 months ago•2 min saved

New Dinosaur Species Reshapes Tyrannosaurus Evolution

An international team of paleontologists discovered a new dinosaur species called Khankhuuluu, considered the closest ancestor of Tyrannosaurs, living about 86 million years ago in Mongolia. The find sheds light on Tyrannosaur evolution, migration from Asia to North America, and the development of their predatory traits, with plans for further research into their ancestors.

via Science Daily|

#dinosaur #evolution #fossil-discovery

paleontology2 years ago•2 min saved

"Discovery of New Tyrannosaurus Species, Closest Relative to T. rex"

Scientists have identified a new species of Tyrannosaurs, T. mcraeensis, which is believed to be the closest relative to T. rex. This discovery suggests that Tyrannosaurs grew to enormous sizes much earlier than previously thought, shedding light on the origins of T. rex in North America rather than Asia. The fossils, originally thought to belong to T. rex, were found in New Mexico and are estimated to have lived 6-7 million years before T. rex existed. The new species had key differences from T. rex, indicating it as a distinct species. This finding challenges previous assumptions about the evolution and origins of T. rex.

via Business Insider|

#dinosaur #evolution #paleontology

paleontology2 years ago•3 min saved

"New Mexico Fossil Unlocks Early History of Giant Tyrannosaurus Species"

Scientists have re-evaluated a partial skull found in New Mexico in 1983 and concluded that it represents a new species of Tyrannosaurus, called Tyrannosaurus mcraeensis, predating the famous T. rex. They observed subtle differences from T. rex in the skull, leading to the recognition of a separate species. However, some researchers doubt this conclusion, citing unremarkable differences and problematic dating. The discovery challenges the understanding of Tyrannosaurus origins and suggests that giant species of this group evolved earlier than previously thought.

via KSL.com|

#fossil #new-mexico #paleontology

paleontology2 years ago•2 min saved

"Discovery of Massive Prehistoric Predator in New Mexico Predating T. rex"

Researchers have identified a new species of Tyrannosaurus, T. mcraeensis, as the closest known relative of the T. rex, challenging previous theories about the dinosaur's origins. The discovery, based on fossils found in southern New Mexico, suggests that the T. rex may have originated in North America millions of years earlier than previously believed. However, some experts are skeptical of the findings and further study is needed to determine the distinctiveness of the new species.

via NPR|

#dinosaur-origins #fossil-discovery #paleontology

science2 years ago•2 min saved

"Remarkable Fossil Suggests New Origin Story for Giant T. rex Relative"

Researchers have discovered a new species of Tyrannosaurus, named Tyrannosaurus mcraeensis, in New Mexico, which predates the familiar T. rex by 5 to 7 million years. The fossil, initially thought to belong to T. rex, exhibits distinct differences in skull structure and teeth. The discovery suggests a new origin story for the iconic dinosaur, indicating that the McRae Formation in New Mexico is older than previously thought. This finding challenges the traditional timeline of T. rex evolution and provides new insights into the early evolution of this famous predator.

via The New York Times|

#evolution #fossil #new-mexico

science2 years ago•3 min saved

Insights into Tyrannosaur Diets: Fossil Reveals Final Meals and Changing Preferences

A tyrannosaurus fossil has provided scientists with new insights into the carnivore's diet. The fossil of a gorgosaurus libratus, part of the tyrannosaurid group that includes the T. rex, contained the preserved hind limbs of two yearling caenagnathid dinosaurs inside its abdominal cavity. This discovery suggests that young tyrannosaurids may have hunted small dinosaurs until they grew bigger and began to feed on larger prey. The findings also indicate that tyrannosaurids played both mesopredator and apex predator roles in their lifetime, contributing to their evolutionary success.

via CBS News|

#carnivore #diet #fossil

paleontology2 years ago•4 min saved

"Groundbreaking Discovery: Tyrannosaurus Fossil Unearthed in Yellowstone National Park"

A tooth from a juvenile Tyrannosaurus has been identified as the first confirmed dinosaur fossil found in Yellowstone National Park. The tooth was originally discovered over 50 years ago but was misidentified and overlooked until recently. The fossil was found in the Harebell Formation, which is approximately 68 million years old. Paleontologists believe that there are more dinosaur fossils to be found in Yellowstone, and this discovery marks the first step in bringing dinosaurs back to the iconic national park.

via Cowboy State Daily|

#dinosaur-fossil #paleontology #rediscovery