Ny fyrvingad dinosaurie identifierad i Kina

23 juni 2026

Rapporterad av AI

Forskare har beskrivit en tidigare okänd befjädrad dinosaurieart från nordvästra Kina som kan förklara ansamlingar av brutna fågelben på en fossilplats.

Dinosaurien, som fått namnet Jianchangmaensis, var en Microraptor-släkting till Velociraptor med långa fjädrar på lemmarna som troligen gjorde det möjligt för den att glidflyga.

Forskare hittade det partiella armbenet vid Changma-bäckenet i Gansu-provinsen. Exemplaret tyder på ett vingspann på cirka 1,2 meter, vilket gör den till en av de större kända microraptorerna.

"Den här nya Microraptor-dinosaurien, Jianchangmaensis, är vår bästa gissning", säger Jingmai O'Connor från Field Museum. Hon noterade att det var den enda icke-fågel-karnivoren som hittats på platsen.

Studien, som publicerats i Annals of Carnegie Museum, ger ytterligare sammanhang till det forntida ekosystemet där tidiga fåglar levde sida vid sida med andra dinosaurier.

Relaterade artiklar

New giant dinosaur species unearthed in Patagonia

Researchers have described a previously unknown sauropod dinosaur from fossils found in Argentina's Chubut province. The creature, called Bicharracosaurus dionidei, reached about 20 meters in length and lived around 155 million years ago.

New dinosaur species from patagonia hunted like herons

29 maj 2026 Rapporterad av AI

Paleontologists have identified a new raptor-like dinosaur species that lived about 70 million years ago in southern Patagonia. Named Kank australis, the creature likely hunted fish using adaptations similar to those of modern herons.

Science

New triassic crocodile relative resembled ostrich dinosaur

Science

Scientists identify giant Tylosaurus rex sea predator from Texas fossils

Science

150-million-year-old stegosaur skull unearthed in Spain

Study links T. rex tiny arms to powerful skull evolution

The tiny arms of Tyrannosaurus rex likely evolved as giant predatory dinosaurs shifted to using their massive skulls and jaws for hunting, according to new research. Scientists examined dozens of theropod species and found a strong connection between shrinking forelimbs and robust skulls. The study suggests this change occurred as predators targeted enormous prey.

Dinosaur tracks from 132 million years ago discovered near Knysna

25 april 2026 Rapporterad av AI

Scientists have uncovered more than two dozen dinosaur tracks dating back 132 million years in a small rock outcrop near Knysna, South Africa. These footprints, the youngest known in southern Africa, indicate dinosaurs persisted in the region into the early Cretaceous Period. The discovery challenges previous gaps in the local fossil record following ancient lava flows.

Ancient reptile shifted from four legs to two as it matured

A newly described crocodile relative from the Late Triassic period began life walking on four legs before adopting a bipedal stance in adulthood, scientists say. The poodle-sized Sonselasuchus cedrus, unearthed in Arizona, reveals unusual growth patterns in ancient reptiles. Researchers detailed the findings in a study published this year.

23 juni 2026 17:31