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Hell Creek Formation

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First T. rex Trackway Confirms the Predator Walked at a Brisk Human Pace
science16 days ago

First T. rex Trackway Confirms the Predator Walked at a Brisk Human Pace

Researchers have identified the first confirmed trackway of an adult Tyrannosaurus rex, offering the first direct evidence of its walking speed. Discovered in North Dakota’s Hell Creek Formation, the 66.5-million-year-old prints indicate the dinosaur moved at approximately 3.5 to 4.5 mph, a pace comparable to a brisk human walk. The finding, published in the Journal of Vertebrate Paleontology, resolves long-standing debates about T. rex locomotion by providing behavioral data that skeletal fossils cannot capture. Three of the four footprints are slated for excavation and transport to the Denver Museum of Nature & Science for further analysis of skin and tissue impressions.

via The Independent|
#denver-museum-of-nature-and-science#fossil-discovery#hell-creek-formation
Fossil trackway in North Dakota reveals T. rex walked at a brisk human pace
science20 days ago

Fossil trackway in North Dakota reveals T. rex walked at a brisk human pace

Researchers have identified the first known trackway of an adult Tyrannosaurus rex, discovered in North Dakota’s Hell Creek Formation. The four-to-five footprints, dating to 66.5 million years ago, indicate the dinosaur walked at approximately 1.6 meters per second, comparable to a brisk human pace. Published in the Journal of Vertebrate Paleontology, the find provides rare behavioral data on T. rex movement, with three prints set for transport to the Denver Museum of Nature & Science.

via cnn.com|
#dinosaur-locomotion#fossil-discovery#hell-creek-formation
Wyoming ranch yields potential landmark T. rex fossil
science23 days ago

Wyoming ranch yields potential landmark T. rex fossil

A partial Tyrannosaurus rex skeleton, nicknamed 'Rex Jr.', was discovered on a ranch in Newcastle, Wyoming. Researchers believe the specimen could be the most significant T. rex find in decades due to its completeness and condition. The discovery highlights the ongoing importance of the Hell Creek Formation for understanding the final days of the dinosaur era.

via Cowboy State Daily|
#fossil-discovery#hell-creek-formation#paleontology
First Adult T. rex Trackway Found in North Dakota Badlands
science27 days ago

First Adult T. rex Trackway Found in North Dakota Badlands

Researchers have identified the first known trackway of an adult Tyrannosaurus rex in the North Dakota badlands. The 23-foot sequence of four footprints, dating to 66.5 million years ago, was discovered in 2025 by a volunteer teacher and published in the Journal of Vertebrate Paleontology. The find offers rare insights into the predator's locomotion, with three prints set to be airlifted to the Denver Museum of Nature & Science for study.

via Fox News|
#fossil-discovery#hell-creek-formation#north-dakota
First Adult T. rex Trackway Found in North Dakota Reveals Slow, Casual Gait
science29 days ago

First Adult T. rex Trackway Found in North Dakota Reveals Slow, Casual Gait

Scientists have confirmed the first known trackway of an adult Tyrannosaurus rex, discovered in the Hell Creek Formation of southwestern North Dakota. The 23-foot-long series of four footprints, dating to 66.5 million years ago, provides rare evidence of the dinosaur's movement, indicating it walked at a casual pace of 3.5 to 4.5 mph. The find, identified by its massive size and narrow toe shape, was discovered by a high school teacher and will be partially excavated for display at the Denver Museum of Nature & Science.

via Gizmodo|
#fossil-discovery#hell-creek-formation#north-dakota
First Adult T. rex Trackway Found in North Dakota Confirms Slow Walking Pace
science29 days ago

First Adult T. rex Trackway Found in North Dakota Confirms Slow Walking Pace

Researchers have confirmed the first known trackway of an adult Tyrannosaurus rex, discovered in North Dakota's Hell Creek Formation. The 23-foot sequence of four footprints, dating to 66.5 million years ago, indicates the predator was walking at a brisk human pace of 3.5 to 4.5 mph. Found by a schoolteacher, the fossils are being airlifted to the Denver Museum of Nature & Science for study.

via New York Post|
#fossil-discovery#hell-creek-formation#north-dakota
First Adult T. rex Trackway Found in North Dakota Reveals Calm 3.5 mph Stroll
science1 month ago

First Adult T. rex Trackway Found in North Dakota Reveals Calm 3.5 mph Stroll

Scientists have confirmed the discovery of the first trackway attributed to an adult Tyrannosaurus rex, found in North Dakota’s Hell Creek Formation. Dating to 66.5 million years ago, the 23-foot sequence of four footprints indicates the animal was walking at a brisk 3.5 to 4.5 mph. Discovered by a high school teacher in 2025, the find offers rare behavioral insights into T. rex movement, distinct from skeletal remains. Three of the prints are being airlifted to the Denver Museum of Nature & Science for study and display.

via Good News Network|
#fossil-discovery#hell-creek-formation#north-dakota
First Adult T. rex Trackway Discovered in North Dakota
science1 month ago

First Adult T. rex Trackway Discovered in North Dakota

Scientists have identified the first known trackway of an adult Tyrannosaurus rex in North Dakota’s Hell Creek Formation, dating to about 66.5 million years ago. The four three-toed footprints—each about 3 feet long—indicate the animal was walking at roughly 3.5–4.5 mph with a 13-foot stride; three of the prints will be recovered by helicopter later this year and transported to the Denver Museum of Nature and Science, while researchers used 3D scans to model the gait and behavior.

via theguardian.com|
#footprints#hell-creek-formation#paleontology
Ancient Aquatic Bird Feathers Unearthed Inside 66-Million-Year-Old Dinosaur Coprolite
paleontology1 month ago

Ancient Aquatic Bird Feathers Unearthed Inside 66-Million-Year-Old Dinosaur Coprolite

Paleontologists in Montana have found exceptionally preserved feathers from an ancient aquatic bird inside a large dinosaur coprolite from the Hell Creek Formation. The find includes the first known hesperornithiform feathers and reveals a mix of modern-like waterproof feathers and smaller primitive feathers, suggesting an evolutionary middle ground between living birds and their dinosaur ancestors. The feathers likely came from the same bird that produced the coprolite, possibly a theropod predator (such as Tyrannosaurus Rex or Nanotyrannus), and offer rare insights into predator–prey interactions and feather evolution around the end-Cretaceous extinction. The study by Jingmai O’Connor and colleagues is published in Current Biology.

via Sci.News|
#bird#coprolite#end-cretaceous-extinction
First Adult T. rex Trackway Found in North Dakota Badlands
science1 month ago

First Adult T. rex Trackway Found in North Dakota Badlands

Paleontologists report the first known trackway of an adult Tyrannosaurus rex — four connected three-toed footprints about 23 feet long from the Hell Creek Formation in southwestern North Dakota, dating to roughly 66.5 million years ago. The spacing suggests the animal walked at about 3.5 to 4.5 mph, and the creature weighed more than seven tons. Found in 2025 near Marmarth by volunteer Kent Hups, the footprints were scanned in 3D and described in a paper in the Journal of Vertebrate Paleontology; three tracks will be airlifted to the Denver Museum for study. The site adds behavioral context to T. rex locomotion and complements earlier isolated footprints and the juvenile “Teen Rex” specimen found in 2022.

via Valley News Live|
#dinosaur-tracks#hell-creek-formation#north-dakota
Giant Footprints Reveal First Known Adult T. rex Trackway
science1 month ago

Giant Footprints Reveal First Known Adult T. rex Trackway

North Dakota paleontologists document a roughly 7-meter trackway dating to about 66.5 million years ago in the Hell Creek Formation, confidently attributed to an adult Tyrannosaurus rex. The four large tridactyl prints—about 1 meter each—suggest the predator was walking at roughly 1.5–2 m/s (3.4–4.5 mph) and are preserved as calcium-carbonate casts around mud depressions, capturing a rare moment of movement. Published in the Journal of Vertebrate Paleontology, the find is the first clearly identified adult T. rex trackway and offers valuable behavioral insight into tyrannosaur locomotion.

via Sci.News|
#hell-creek-formation#paleontology#science