Tag: Late Cretaceous
-
Scientists Confirm 5-Mmile Wide Nadir Crater Beneath Atlantic Ocean Floor
New Discovery: A Giant Crater Hidden Beneath the Atlantic In a striking fusion of ocean science and planetary history, researchers have confirmed a massive 5-mile-wide asteroid crater buried beneath the Atlantic Ocean floor. Measuring roughly 8 kilometers across, the Nadir Crater is the product of a colossal 66-million-year-old impact that reshaped our planet’s late Cretaceous…
-
Duelling Dinosaur: Is the Fossil a Young T. rex or a New Species?
Understanding the Duelling Dinosaur Debate In paleontology, few finds spark as much debate as a fossil that defies easy classification. The so-called “Duelling Dinosaur,” recently highlighted in Nature, has reignited discussions about whether the specimen represents a juvenile Tyrannosaurus rex or a previously unknown species. As researchers scrutinize skull features, bone growth patterns, and comparative…
-
Alamosaurus: The 21-Meter Titan That Roamed North America
Introduction: A Titan of North America Among the most awe-inspiring creatures to ever walk the continents, Alamosaurus stands as a colossal titan of North America. Recent fieldwork by students from Sul Ross State University in Big Bend National Park has yielded a vertebra from this giant sauropod, offering fresh clues about its size, habitat, and…
-
North America’s Giant Dinosaur: Alamosaurus Was a 21-Meter Titan
The Titan of North America Among the giants of the Late Cretaceous, Alamosaurus stands out as a pinnacle of sauropod evolution in North America. Estimates place this colossal titan at about 21 meters (roughly 70 feet) in length and up to 80 tons in weight, making it one of the largest land animals ever to…
-
Tiny fossil fish rewrite freshwater evolution after 70 million years hidden
A tiny fish with a big impact Researchers have unearthed a 4-centimeter-long skeleton from the Late Cretaceous that is rewriting our understanding of freshwater evolution. Named Acronichthys maccognoi, this diminutive fossil fish spent tens of millions of years hidden in rock before emerging to illuminate the deep history of otophysans, a major supergroup of bony…
-
Tiny fossil fish rewrites freshwater evolution after 70 million-year mystery
New fossil sheds light on early freshwater fish evolution A remarkably small 4 cm fossil fish, hidden for 70 million years, is reshaping the story of how freshwater ecosystems evolved. Discovered in modern Canada and detailed in the reputable journal Science, the specimen has been named Acronichthys maccognoi. The fossil, dating to the Late Cretaceous…