Tag

Permian

All articles tagged with #permian

science1 month ago•10 min saved

Ancient oceans suffocated by heat; today’s warming echoes a deadly drop in ocean oxygen

A 2026 PNAS study used lab measurements of oxygen use across major marine groups and a trait-based model to show that warming during the end-Permian increased animals’ oxygen demand while lowering dissolved oxygen, producing habitat loss and select extinctions. The results explain why certain groups vanished and others persisted, supporting the idea that temperature-dependent hypoxia helped drive the crisis. The piece also notes that today’s oceans are warming and deoxygenating, but this is not a direct forecast of another end-Permian-scale extinction; magnitudes, timescales, and co-stresses like acidification differ, and more cross-species, regional data are needed to gauge current risks.

via Space Daily|

#climate #extinction #hypoxia

science7 months ago•4 min saved

Ancient Tropics Frozen in Time: 300-Million-Year Forest Buried by Volcanic Ash in China

A 300-million-year-old tropical forest near Wuda, Inner Mongolia, was rapidly buried by volcanic ash, preserving plants in situ and preserving a diverse Permian ecosystem—tree ferns, Sigillaria, Cordaites, and abundant Noeggerathiales—providing a rare time capsule to study ancient climates and flora.

via The Daily Galaxy|

#china #fossil-forest #paleontology

science7 months ago•6 min saved

Early Permian Predators Targeted Big Plant-Eaters, Study Finds

A Scientific Reports study of bite marks on three young Permian herbivores shows that large predators were already shaping ecosystems more than 280 million years ago, with candidates like varanopid and sphenacodontid synapsids (e.g., Varanops and Dimetrodon) preying on big herbivores. The findings push back the timeline for predator–prey hierarchies on land and reveal a complex Permian food web that also involved arthropod borings and scavengers.

via Indian Defence Review|

#fossils #paleontology #permian

science7 months ago•3 min saved

Ancient Reptile Resting Trace Reveals Earliest Cloaca in Amniotes

A 295‑million‑year‑old resting trace from a bolosaurian reptile in Germany preserves belly keratin scales and what appears to be a cloacal vent, making it the oldest known example of a reptile cloaca and offering new insight into early amniote skin evolution.

via ScienceAlert|

#cloaca #fossil #keratin-scales

science7 months ago•5 min saved

Ancient 290-Million-Year Vomit Fossil Reveals Pre-Dinosaur Diets

A 290-million-year-old fossilized vomit from Germany’s Bromacker site, the oldest known terrestrial regurgitalite, contains 41 bones from three reptile species. CT scans digitally separated the bones, confirming they came from three distinct species and revealing that early predators like Dimetrodon teutonis and Tambacarnifex unguifalcatus had varied, opportunistic diets in a late Paleozoic ecosystem.

via The Daily Galaxy|

#ct-scans #dimetrodon-teutonis #paleontology

science1 year ago•3 min saved

296-Million-Year-Old Brazilian Fossil Unveils Ancient Plant Spores

A 296-million-year-old lycopsid fossil from Brazil's Paraná Basin reveals in situ plant spores, leading to the creation of a new genus, Franscinella, and providing valuable insights into Permian plant diversity and ecosystems before the rise of dinosaurs.

via Indian Defence Review|

#brazil #fossil #lycopsid

science1 year ago•4 min saved

Ancient Fossil Unveils South America's Largest Prehistoric Predator

Paleontologists in Brazil discovered a 265-million-year-old fossil of Pampaphoneus biccai, one of South America's largest pre-dinosaur predators, providing valuable insights into Permian ecosystems and the events leading up to Earth's largest extinction.

via Indian Defence Review|

#brazil #fossil #pampaphoneus

science1 year ago•5 min saved

Ancient Fossils Uncover Pre-Extinction Creatures

Recent fossil discoveries in southern Africa, particularly in Zambia and Tanzania, have provided new insights into the diverse ecosystems of the late Permian period, just before the catastrophic end-Permian extinction, helping scientists understand which species survived and how ecosystems responded to this mass extinction event.

via Indian Defence Review|

#extinction #fossil-discoveries #pangea

science1 year ago•4 min saved

New African fossils reveal pre-mass extinction era insights

An international team of paleontologists has uncovered well-preserved fossils from Africa's Permian period, providing new insights into the animals that thrived before the Earth's largest mass extinction, with findings including new species of dicynodonts, gorgonopsians, and temnospondyls, which help understand survival and extinction patterns across Pangea.

via Phys.org|

#africa #fossils #mass-extinction

science1 year ago•4 min saved

New Permian Pareiasaur Discovery Sheds Light on Ancient Herbivores

Scientists discovered a new species of Permian herbivorous tetrapod, Yinshanosaurus angustus, in China, providing insights into the evolution of ancient herbivores and their role in late Permian ecosystems, highlighting the diversity and widespread distribution of pareiasaurs before their extinction at the end of the period.

via Indian Defence Review|

#china #fossil-discovery #herbivores

science1 year ago•15 min saved

Permian Monsters: Earth's Pre-Dinosaur Rulers

Long before dinosaurs, the Earth was ruled by terrifying Permian predators like gorgonopsians and Dimetrodon, which dominated a world of bizarre creatures and extreme environments, until a massive volcanic eruption caused the greatest mass extinction in Earth's history, paving the way for the rise of dinosaurs and mammals.

via BBC|

#extinction #fossil-discovery #gorgonopsian

paleontology2 years ago•3 min saved

"Debunked: Uncovering the Truth Behind a Famous 280 Million-Year-Old Fossil"

A rare 280 million-year-old fossil resembling a lizard-like creature, named Tridentinosaurus antiquus, was found to be mostly a carved rock painted black, with only genuine hind-limb bones and tiny bone scales preserved in the rock. The discovery was made when researchers reexamined the fossil with modern techniques, revealing that the dark coloration previously thought to be preserved skin was actually paint. The study's lead author, Valentina Rossi, believes the additional carving and paint may have been poor fossil preparation in years past, rather than an outright forgery. The fossil's identity remains uncertain, but the presence of osteoderms leads researchers to believe it was a reptile-like animal of some kind.

via Livescience.com|

#forgery #fossil #lizard

paleontology2 years ago•3 min saved

"Long-Debated Fossil Unmasked as Elaborate Forgery"

A fossil discovered in the Italian Alps in 1931, believed to be an ancient lizard with exceptionally preserved soft tissue, has been revealed to be a fake. A recent analysis led by paleobiologist Valentina Rossi discovered that the soft tissue was actually black paint. While the revelation was unexpected and disappointing, it opens up new opportunities for studying the genuine parts of the fossil and potentially finding new specimens at the excavation site. The research sheds light on the history of paleontology and the advancements in molecular-level fossil analysis.

via ScienceAlert|

#fossil #italian-alps #paleobiology

paleontology3 years ago•4 min saved

Ancient Permian Monsters Preceded the Age of Dinosaurs

Before the rise of the dinosaurs, the Permian period was home to a diverse range of prehistoric animals, including synapsids like Dimetrodon, Cotylorhynchus, Edaphosaurus, Scutosaurus, and Inostrancevia. These creatures, which lived between 299 to 251 million years ago, were not dinosaurs but played important roles in the ecosystem. Unfortunately, a mass extinction event wiped out around 90 percent of life on Earth during the Permian Extinction. However, this extinction paved the way for the rise of the dinosaurs and subsequent biodiversity booms in the Triassic period.

via IFLScience|

#dinosaurs #extinction #paleontology