Oldest Fossilized Shrimp in the world found!

Geologists study rare well-preserved creature showing muscles

Rodney Feldmann, professor emeritus, and Carrie Schweitzer, associate professor, from Kent State University’s Department of Geology report on the oldest fossil shrimp known to date in the world. The creature in stone is as much as 360 million years old and was found in Oklahoma. Even the muscles of the fossil are preserved.

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Ancient Koalas May Have Been Loud and Lazy but They Didn’t Chew Gum

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Lowland mid Tertiary rainforest of Queensland, Australia, including archaic koalas that reveal evidence about the origin of their distinctive vocalizations.

Skull fragments of prehistoric koalas from the Riversleigh rainforests of millions of year ago suggest they shared the modern koala’s “lazy” lifestyle and ability to produce loud “bellowing” calls to attract mates and provide warnings about predators.

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Warm-blooded Dinosaurs Worked Up A Sweat

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Schematic diagram to show how the mechanical advantage and active muscle volume in the dinosaur hind limb were reconstructed.

Were dinosaurs “warm-blooded” like present-day mammals and birds, or “cold-blooded” like present day lizards? The implications of this simple-sounding question go beyond deciding whether or not you’d snuggle up to a dinosaur on a cold winter’s evening.

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Terrible Teens Of T. Rex: Young Tyrannosaurs Did Serious Battle Against Each Other

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Young tyrannosaurs did serious battle against each other.

We all know adolescents get testy from time to time. Thank goodness we don’t have young tyrannosaurs running around the neighborhood.

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Crushed Bones Reveal Literal Dino Stomping Ground

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The diagonal fracture in the ischium bone of a Venenosaurus suggests the break occurred when the bone was still fresh.

Imagine the gruesome sound of bones snapping as a thirsty, 30-ton dinosaur tramples a heap of fresh carcasses on his way to a rapidly shrinking lake.

That’s the scene revealed by a painstaking analysis of thousands of bones unearthed near Moab, Utah by geologists from Brigham Young University.

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Trackway Analysis Shows How Dinosaurs Coped With Slippery Slopes

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Map of major geological features and tracks at the Moyeni tracksite.

A new investigation of a fossilized tracksite in southern Africa shows how early dinosaurs made on-the-fly adjustments to their movements to cope with slippery and sloping terrain. Differences in how early dinosaurs made these adjustments provide insight into the later evolution of the group.

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Was Mighty T. Rex ‘Sue’ Felled By A Lowly Parasite?

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An artist’s rendering of a T. rex suffering from a trichomonosis-like disease, a parasitic infection caused by a protozoan

When pondering the demise of a famous dinosaur such as ‘Sue,’ the mighty Tyrannosaurus rex whose fossilized remains are a star attraction of the Field Museum in Chicago, it is hard to avoid the image of clashing Cretaceous titans engaged in bloody, mortal combat.

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Fossilized Dung Balls Reveal Secret Ecology Of Lost World

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Palaeontologists in Argentina have discovered that dung balls reveal much about the ecology of a lost world of giant mammals that lived 30 million years ago.

A new study of 30-million-year-old-fossil ‘mega-dung’ from extinct giant South American mammals, published in Palaeontology, reveals evidence of complex ecological interactions and theft of dung-beetles’ food stores by other animals.

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Dinosaurs May Have Been Smaller Than Previously Thought

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Model dinosaur. Scientists have discovered that the original statistical model used to calculate dinosaur mass is flawed, suggesting dinosaurs have been oversized.

The largest animals ever to have walked the face of the earth may not have been as big as previously thought, reveals a paper published June 21 in the Zoological Society of London’s Journal of Zoology.

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Beaked, Bird-like Dinosaur Tells Story Of Finger Evolution

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Limusaurus

Scientists have discovered a unique beaked, plant-eating dinosaur in China. The finding, they say, demonstrates that theropod, or bird-footed, dinosaurs were more ecologically diverse in the Jurassic period than previously thought, and offers important evidence about how the three-fingered hand of birds evolved from the hand of dinosaurs.

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