Dinosaurs – आवारा मुसाफिर

Dinosaur-killing asteroid impact fouled Earth’s atmosphere with dust

October 31, 2023579 Views

It was, to put it mildly, a bad day on Earth when an asteroid smacked Mexico's Yucatan Peninsula 66 million years ago, causing a global calamity that erased three-quarters of the world's species and ended the age of dinosaurs. The immediate effects included wildfires, quakes, a massive shockwave in the air and huge standing waves in the seas. But the coup de grâce for many species may have been the climate catastrophe that unfolded in the following years as the skies were darkened by clouds of debris and temperatures plunged. Researchers on Monday revealed the potent role that dust from pulverized rock ejected into the atmosphere from the impact site may have played in driving extinctions, choking the atmosphere and blocking plants from harnessing sunlight for life-sustaining energy...

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Europe had different herbivorous dinosaurs to Asia and America

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September 14, 2023549 Views

Scientists have discovered a new species of small plant-eating dinosaur on the Isle of Wight in southern England (UK). The new species, Vectidromeus insularis, is the second member of the hypsilophodont family to be found on the island, suggesting that Europe had its own family of small herbivorous dinosaurs, distinct from those found in Asia and North America. Hypsilophodonts were a group of nimble, bipedal herbivores that lived around 125 million years ago. The animals lived alongside early tyrannosaurs, spinosaurs, and Iguanodon. The new fossil represents an animal about the size of a chicken but was a juvenile and may have grown much larger. An artistic impression shows Vectidromeus insularis. Photo credit: Emily Willoughby Vectidromeus is a close relative o...

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Europe’s largest land predator unearthed

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June 10, 2022347 Views

Research involving palaeontologists from the Universities of Portsmouth and Southampton has identified the remains of one of Europe’s largest ever land-based hunters: a dinosaur that measured over 10m long and lived around 125 million years ago. Several prehistoric bones, uncovered on the Isle of Wight, on the south coast of England, and housed at Dinosaur Isle Museum in Sandown, belonged to a type of two-legged, crocodile-faced predatory dinosaur known as spinosaurids. Dubbed the ‘White Rock spinosaurid’ – after the geological layer in which it was found – it was a predator of impressive proportions. Illustration of White Rock spinosaurid. Photo Credit: Anthony Hutchings “This was a huge animal, exceeding 10 m in length and probably several tonnes in weight. Judging from some of...

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New fossil birds discovered near China’s Great Wall – one had a movable, sensitive “chin”

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February 20, 2022660 Views

Approximately 80 miles from the westernmost reach of China’s Great Wall, paleontologists found relics of an even more ancient world. Over the last two decades, teams of researchers unearthed more than 100 specimens of fossil birds that lived approximately 120 million years ago, during the time of the dinosaurs. However, many of these fossils have proved difficult to identify: they’re incomplete and sometimes badly crushed. In a new paper published in the Journal of Systematics and Evolution, researchers examined six of these fossils and identified two new species. And as a fun side note, one of those new species had a movable bony appendage at the tip of its lower jaw that may have helped the bird root for food. “It was a long, painstaking process teasing out what these things were,” s...

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Exquisitely preserved embryo found inside fossilized dinosaur egg

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December 22, 2021926 Views

A 72 to 66-million-year-old embryo found inside a fossilised dinosaur egg sheds new light on the link between the behaviour of modern birds and dinosaurs, according to a new study. The embryo, dubbed ‘Baby Yingliang’, was discovered in the Late Cretaceous rocks of Ganzhou, southern China and belongs to a toothless theropod dinosaur, or oviraptorosaur. Among the most complete dinosaur embryos ever found, the fossil suggests that these dinosaurs developed bird-like postures close to hatching. Life reconstruction of a close-to-hatching oviraptorosaur dinosaur embryo, based on the new specimen ‘Baby Yingliang’. Photo courtesy: Lida Xing Scientists found the posture of ‘Baby Yingliang’ unique among known dinosaur embryos — its head lies below the body, with the feet on either side an...

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Dinosaurs’ Last Spring: Study pinpoints timing of Chicxulub asteroid impact

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December 11, 2021541 Views

Ground-breaking Study Confirms Time of Year When Asteroid Wiped Out Dinosaurs and 75 Percent of Life on Earth A ground-breaking study led by researchers at Florida Atlantic University and an international team of scientists conclusively confirms the time year of the catastrophic Chicxulub asteroid, responsible for the extinction of dinosaurs and 75 percent of life on Earth 66 million years ago. Springtime, the season of new beginnings, ended the 165-million-year reign of dinosaurs and changed the course of evolution on Earth. Results of the study, published in the journal Scientific Reports, greatly enhances the ability to trace the first stages of damage to life on Earth. FAU’s Robert DePalma, senior author and an adjunct professor in the Department of Geosciences, Charles E. S...

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A dinosaur trove discovered in Italy

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December 6, 20211036 Views

Finding rewrites the history, geography, and evolution of the ancient Mediterranean area Italy is not exactly renown for dinosaurs. In comparison to its excellent artistic and archaeological heritage, dinosaur fossils are very rare. Not surprisingly, the discovery of the first isolated remains from these animals, in the early 1990s, generated quite an excitement, but were shortly after considered nothing more than an exception to a general rule. During the reign of dinosaurs, between 230 and 66 million years ago, the ancient Mediterranean area would have been hard to map, formed by countless small islands far from all major mainlands – Europe, Africa, and Asia – unsuitable to sustain large animals like the dinosaurs. Or so we believed. Antonio - Fossil and a sculpture by Enrico Rizz...