All posts tagged: paleontology

Scientists Discover Three-Eyed Sea Moth From Half a Billion Years Ago

Scientists Discover Three-Eyed Sea Moth From Half a Billion Years Ago

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Scientists have discovered a half a million years old three eyed “sea moth” from a cache of museum fossils in Canada. These finger-sized feisty predators are speculated to lurk in the primordial seas, hooking prey into its mouth while breathing through long gills on its butt. This species is named Mosura fentoni because of its resemblance to the fictional Japanese monster Mothra. This species, belonging to the group of ancestral arthropods called radiodonts, gives valuable insight towards the surprising diversity and adaptations in the ancient arthropods. About the species According to a study by Paleontologists Joseph Moysiuk and Jean-Bernard Caron, earliest-diverging arthropods, the radiodonts, exhibited comparatively limited variability in tagmosis. Unlike them, the newly found species M. fentoni exhibits up to 26 trunk segments, the highest number reported for any radiodont, despite being among the smallest known. The species also had the longest gills relative to body length of all known radiodonts. the back-end gills were most likely a specialized system for respiration; horseshoe crabs, wood lice and some other living arthropods have subsequently evolved …

New Study Traces T-Rex’s Origins to Asia and Links Gigantic Size to Climate Shift

New Study Traces T-Rex’s Origins to Asia and Links Gigantic Size to Climate Shift

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The origin and evolution of the famous Tyrannosaurus rex have been a topic of fierce debate among the palaeontologists for a long time. A new study led by UCL researchers suggests that T-Rex might have evolved in North America, but its direct ancestors arose and came from Asia when the sea levels fell, providing a land bridge connecting the continents more than 70 million years ago. The study also found that the rapid growth in size of tyrannosaurids as well as a closely related group called megaraptors coincided with a cooling of the global climate following a peak in temperatures 92 million years ago. Evolutionary Origins According to Cassius Morrison, the lead author of the new study, the direct ancestors of the T-Rex reached North America via Bering Strait around 72 million years ago. The new research aligns with a 2016 study that found T-Rex shares more anatomical similarities with Asian tyrannosaurids like Tarbosaurus than with North American ones like Daspletosaurus. The researchers used a model based on where and when various tyrannosaurid species had …

Researchers Challenge Claims of ‘Leather-Like’ T. rex Skin

Researchers Challenge Claims of ‘Leather-Like’ T. rex Skin

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A US-based marketing agency, VML, and biotechnology firms The Organoid Company from the Netherlands and Lab-Grown Leather Ltd of UK are partnering to create luxury fashion accessories using T-rex leather. The collaboration claims that the lab-grown T-rex leather will offer natural durability, repairability, and tactility, making it an eco-friendly and cruelty-free alternative to traditional leather. The material will be made from fossilized T. rex collagen, a protein that gives skin and tissues structure. However, dinosaur specialists are sceptical as there is no DNA from the prehistoric predator needed to create genuine T. rex leather. Additionally, palaeontologists have only discovered T. rex collagen in bone, not skin. Criticism from Researchers According to an email from Thomas Holtz, Jr., a vertebrate palaeontologist at the University of Maryland to told,Live Science, he thinks the T. rex leather claim is “misleading” after reading the announcement and was some sort of fantasy. DNA decays after an animal’s death, and researchers haven’t found any DNA from the age of dinosaurs. The oldest preserved DNA on record is about 2 million years …

Dinosaurs Weren’t Doomed Before the Asteroid Hit, New Research Suggests

Dinosaurs Weren’t Doomed Before the Asteroid Hit, New Research Suggests

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Scientists say that dinosaurs weren’t doomed when an asteroid hit Earth. Fossil unearthings before the asteroid collision, at the end of the Cretaceous epoch, show that dinosaurs were losing variety and numbers. At first, some scientists thought this alteration showed dinosaurs were headed toward extinction even before the fatal asteroid incident. Nevertheless, this concept has long been argumentative, with other researchers insisting that dinosaur diversity was doing just fine at the time of their loss of life. Challenging the Long-Held Narrative According to a report by Live Science, the visible rarity of dinosaurs before their extinction may merely be due to a low fossil record. Emphasizsng four families—that is, the Ankylosauridae, Ceratopsidae, Hadrosauridae, and Tyrannosauridae—the studies of the scientists reveal records of approximately 8,000 fossils from North America dating to the Campanian age (83.6 million to 72.1 million years ago) and Maastrichtian age (72.1 million to 66 million years ago). Th range of dinosaurs peaked 76 million years ago and started to shrink after the asteroid collision wiped off the nonavian dinosaurs. This drift was more …

Giant Horned Dinosaur Fossils Rediscovered in Egypt, WWII Lost Treasures

Giant Horned Dinosaur Fossils Rediscovered in Egypt, WWII Lost Treasures

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Fossil evidence of a massive horned dinosaur has been rediscovered through previously unseen photographs of remains destroyed during World War II. The dinosaur, named Tameryraptor markgrafi, lived approximately 95 million years ago in what is now Egypt. Spanning an estimated length of 33 feet, the species is considered one of the largest known terrestrial predators. The fossils were initially unearthed in 1914 in Egypt’s Bahariya Oasis and housed in Germany before being lost in a wartime bombing. Revelation Through Archived Images According to the study published in PLOS One, the fossils had been mistakenly classified as belonging to the Carcharodontosaurus group. Newly discovered photographs, stored in the Huene Archive at the University of Tübingen, revealed features such as a prominent horn and an enlarged braincase, differentiating the specimen from others in the group. Maximilian Kellermann, a doctoral student at the Bavarian State Collection for Paleontology and Geology, noted the significant distinctions upon reviewing the photographs. Speaking to Live Science, he expressed initial confusion, followed by excitement as the differences became apparent. Historical Context and Classification …

Human Hunting More Responsible for Kangaroo Extinction than Climate Change

Human Hunting More Responsible for Kangaroo Extinction than Climate Change

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The extinction of many kangaroo species in Australia around 40,000 years ago might have been caused more by human activities than climatic changes. Fossil evidence from ancient kangaroo teeth suggests that these animals adapted well to changing climates due to their flexible diets. This raises the likelihood that human hunting practices played a greater role in their disappearance than previously assumed. Over 90 percent of the continent’s large animal species vanished during the same period, with kangaroos making up a significant portion of these losses. Teeth Analysis Challenges Climate Theory According to Science News, researchers, including Samuel Arman, a paleontologist at the Museum and Art Gallery of the Northern Territory, studied the teeth of 937 kangaroo specimens. This included both fossilised and modern species. The study examined microscopic wear on the teeth, which provides clues about dietary habits. The findings contradict earlier assumptions that extinct kangaroos depended on limited types of vegetation, such as tough plants. Instead, the evidence suggests these animals had varied diets, making them more resilient to environmental changes. Human Impact on …

Scientists Uncover Remains of Larger Mesosaurs in Uruguay’s Ancient Seas

Scientists Uncover Remains of Larger Mesosaurs in Uruguay’s Ancient Seas

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Fossil remains of ancient aquatic reptiles, known as mesosaurs, have been unearthed in Uruguay, pointing to the existence of specimens that far exceed previously recorded sizes. The fossils, which include skull fragments and associated bones, indicate that some mature mesosaurs may have grown to over twice the size of earlier documented adults. This revelation provides fresh insight into the potential gigantism of mesosaurs, reptiles that thrived during the Early Permian epoch in Gondwana. Fossils from the Mangrullo Formation Shed Light on Mesosaur Size According to a study published in Fossil Studies, the specimens were excavated from the Mangrullo Formation in northern Uruguay, an area already recognised for its exceptional fossil preservation. Dr. Graciela Piñeiro and her team at Universidad de la República analysed the remains, which included two fragmented skulls, vertebrae, and isolated bones. Comparisons with over 1,000 previously studied mesosaur fossils revealed that the new specimens, with skulls measuring 15–20 cm, belonged to individuals whose total lengths ranged from 1.5 to 2.5 metres. Insights into Mesosaur Ontogeny and Environment The study highlights that previously …

New Haplocanthosaurus Specimen Uncovered in Colorado’s Dry Mesa Dinosaur Quarry

New Haplocanthosaurus Specimen Uncovered in Colorado’s Dry Mesa Dinosaur Quarry

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A significant discovery has been made in Colorado’s Dry Mesa Dinosaur Quarry, where paleontologists have unearthed a new specimen of Haplocanthosaurus, an intermediate sauropod dinosaur from the Late Jurassic period, approximately 155 to 152 million years ago. This new finding contributes valuable insight into the anatomy and evolutionary position of the enigmatic genus, which remains less understood compared to other Morrison Formation dinosaurs like Apatosaurus and Diplodocus. Details of the New Specimen According to a study published in The Anatomical Record, the specimen includes three anterior dorsal vertebrae, four posterior dorsal vertebrae, and a right tibia. Researchers identified it by distinct anatomical features such as dorsally angled transverse processes and a broad distal tibia. Dr. Mathew Wedel, a paleontologist at Western University of Health Sciences, stated that the new specimen is the geologically youngest example of Haplocanthosaurus discovered on the Colorado Plateau. Haplocanthosaurus and Its Significance Haplocanthosaurus is considered a rare genus, known from only 11 specimens compared to the numerous fossils of other Morrison Formation sauropods. Dr. Wedel and his team explained that crucial …

Amber Discovered For the First Time in Antarctica: What You Need to Know

Amber Discovered For the First Time in Antarctica: What You Need to Know

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The discovery of amber in Antarctica has been reported for the first time, as detailed in a recent study published in Antarctic Science. Dr. Johann Klages from the University of Bremen, alongside a team of researchers, uncovered this specimen in sediment cores from the Pine Island trough in West Antarctica. This ancient amber, originating from approximately 83 to 92 million years ago during the mid-Cretaceous period, offers valuable insights into prehistoric environmental conditions near the South Pole. Unveiling the First Antarctic Amber The study was published in Antarctic Science journal and reveals that the amber, known as Pine Island amber, was retrieved using the MARUM-MeBo70 drill rig during a 2017 expedition on the RV Polarstern vessel. This mid-Cretaceous resin is considered a significant breakthrough as it suggests that a swampy temperate rainforest, dominated by coniferous trees, thrived in the region during a much warmer period in Earth’s history. According to Dr. Henny Gerschel from the Saxon State Office for the Environment, Agriculture and Geology, the amber likely contains tiny fragments of tree bark, preserved through …

Meet Quaestio Simpsonorum: The Oldest Asymmetrical Animal Found in Australia

Meet Quaestio Simpsonorum: The Oldest Asymmetrical Animal Found in Australia

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A discovery from Australia’s Nilpena Ediacara National Park has revealed the oldest known asymmetrical animal, Quaestio simpsonorum. This creature, which lived around 555 million years ago, resembles a small marine vacuum cleaner, gliding across the ocean floor and feasting on tiny algae and bacteria. What sets Quaestio apart is a backward question-mark-shaped protrusion on its back, marking a significant milestone in the evolution of more complex life forms. Researchers have long been very interested in the Ediacaran period, which spanned from 635 to 541 million years ago. It predated the Cambrian explosion—a time when life on Earth diversified dramatically. The fossils of Quaestio were unearthed in South Australia, where many early complex animal fossils have been found. According to Scott Evans, a paleobiologist at Florida State University and the lead author of a study published in the journal Evolution and Development, the unique shape of this animal provides insight into how early life evolved. “The animal’s backward question-mark shape clearly separates the left and right sides, something we haven’t seen in other fossils from this era,” …