Tag

Trace Fossils

All articles tagged with #trace fossils

science1 month ago•7 min saved

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

science2 months ago•12 min saved

Ancient bees nested in bone: six fossil nests found in a 20,000-year-old tooth socket

Researchers examining a Dominican cave fossil tooth socket uncovered six bee nests dating to about 20,000 years ago, all inside hollow bone cavities. The nests, revealed by CT scans, show cup-shaped, waterproof-lined chambers and were found across multiple sediment layers, indicating repeated use over generations. This is the first documented case of bees nesting in animal bone, a finding that expands paleontologists’ search for nesting sites in old collections rather than suggesting new bee biology or evolution. The site also preserves a rich mix of fossils and environmental clues (fungal spores, pollen) pointing to a damp, wood-decay–rich setting, with the nests representing a small, incidental part of the broader deposit.

via Space Daily|

#bees #bone-nesting #dominican-republic

archaeology4 months ago•5 min saved

Ancient Mongolian Trackway Rediscovered, Revealing 31 Giant Dinosaur Footprints

Rediscovered in northern Mongolia, a 120-million-year-old tracksite in the Shinekhudag Formation preserves 31 footprints—two parallel sauropod trackways suggesting herd movement and five theropod tracks—indicating large predators converged at a drying lake edge; first noted in 1950 but lost for decades, the site could yield bones nearby and helps fill gaps in Mongolia’s early Cretaceous dinosaur record.

via Indian Defence Review|

#archaeology #dinosaurs #early-cretaceous

science9 months ago•6 min saved

Ancient Bee Nests Revealed in Fossilized Bones and Owl Remains

Researchers discovered 20,000-year-old fossilized bee nests inside bones in a Caribbean cave, revealing an unusual nesting behavior where bees used bones and built nests in caves, expanding understanding of bee ecology and adaptation in ancient environments.

via CNN|

#ancient-behavior #caribbean-fossils #cave-nesting

science10 months ago•5 min saved

Unexplained South American Tunnels Linked to Animal Footprints

Large underground tunnels in South America, initially thought to be human-made, are now believed to be the work of extinct giant ground sloths, based on footprints and tunnel characteristics, revealing new insights into Pleistocene ecosystems and animal behavior.

via Times of India|

#ground-sloth #prehistoric-animals #science

science11 months ago•5 min saved

Ancient Saber-Toothed Predator Tracks Discovered in Volcanic Ash

Scientists discovered 29-million-year-old fossilized footprints of a cat-like predator in Oregon's volcanic ash, providing rare behavioral insights into ancient life and demonstrating how volcanic eruptions can preserve delicate traces of prehistoric animals, with modern digital techniques enhancing study and preservation.

via Indian Defence Review|

#fossil-tracks #paleontology-technology #prehistoric-predators

science1 year ago•5 min saved

Fossil Finds Challenge Cambrian Explosion Theory

New research analyzing 170 trace fossils suggests that complex animal movements and body traits emerged gradually during the Ediacaran Period, about 10 million years before the Cambrian Explosion, challenging the idea of a sudden evolutionary burst and indicating a slow buildup of biological complexity.

via Earth.com|

#animal-movement #cambrian-explosion #ediacaran-period

science1 year ago•3 min saved

Revised Timeline: Cambrian Explosion Occurred 15 Million Years Earlier

New research suggests the Cambrian explosion, a major event in Earth's biological history, actually began around 545 million years ago, with evidence of complex, mobile organisms appearing much earlier than previously thought, reshaping our understanding of early animal evolution.

via The Daily Galaxy|

#biological-complexity #cambrian-explosion #early-animal-evolution

science1 year ago•3 min saved

Ancient Evidence Suggests Cambrian Explosion Occurred Earlier Than Thought

A recent study suggests the Cambrian Explosion, traditionally dated to around 530 million years ago, may have actually begun as early as 545 million years ago, based on analysis of ancient trace fossils indicating more complex and mobile early organisms than previously believed.

via Indian Defence Review|

#cambrian-explosion #early-life-forms #evolution

paleontology3 years ago•4 min saved

Uncovering Ancient Deep-Sea Vertebrates through Unique Trace Fossils

Rare trace fossils discovered in 130-million-year-old rocks provide the earliest evidence of deep-sea fishes, pushing back their colonization of the abyssal plain by 80 million years. These fossils, found in the northwest Apennines, Italy, represent the earliest deep-sea vertebrates and shed light on the colonization of the deep sea by vertebrates. The fossils reveal the activity of fishes on a dinosaur-age sea floor thousands of meters deep, providing insights into the adaptations and behaviors of these pioneers of the abyss. The discovery challenges previous understanding of the factors that triggered the colonization of the deep sea and offers fundamental clues about the beginnings of vertebrate evolution in this habitat.

via Phys.org|

#deep-sea-fishes #early-cretaceous #evolution