A new species of coelacanth fish has been discovered in Texas. The species is now the youngest coelacanth from Texas; fish jaw and cranial material indicate a new family — Dipluridae — that was evolutionary transition between two previously known families. Pieces of tiny fossil skull found in Fort Worth have been identified as 100 […]
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100-Million-Year-Old Coelacanth Fish Discovered in Texas Is New Species from Cretaceous
October 25th, 2012
Riffin Fossil Study Helps Pinpoint Extinction Risks for Ocean Animals: When It Comes to Ocean Extinctions, Range Size Matters Most
October 24th, 2012
riffin What makes some ocean animals more prone to extinction than others? A new study of marine fossils provides a clue. An analysis of roughly 500 million years of fossil data for marine invertebrates reveals that ocean animals with small geographic ranges have been consistently hard hit — even when populations are large, the authors report. […]
Fossil Fishes from China Provide First Evidence of Dermal Pelvic Girdles in Osteichthyans
October 22nd, 2012
riffin The pectoral and pelvic girdles support paired fins and limbs, and have transformed significantly in the diversification of gnathostomes or jawed vertebrates (including osteichthyans, chondrichthyans, acanthodians and placoderms). For instance, changes in the pectoral and pelvic girdles accompanied the transition of fins to limbs as some osteichthyans (a clade that contains the vast majority of […]
Scientists Identify Likely Origins of Vertebrate Air Breathing
October 21st, 2012
riffin University of Alaska Fairbanks scientists have identified what they think is the ancestral trait that allowed for the evolution of air breathing in vertebrates. They will present their research at the 42nd annual meeting of the Society for Neuroscience Oct. 17 in New Orleans. “To breathe air with a lung you need more than a […]
JURASSIC PARK WON’T HAPPEN: DINO DNA DEAD
October 20th, 2012
riffin In “Jurassic Park,” scientists extract 80-million-year-old dino DNA from the bellies of mosquitoes trapped in amber. Researchers may never be able to extract genetic material that old and bring a T. rex back to life, but a new study suggests DNA can survive in fossils longer than previously believed. The oldest DNA samples ever recovered […]
‘Time-Capsule’ Japanese Lake Sediment Advances Radiocarbon Dating for Older Objects
October 19th, 2012
riffin A new series of radiocarbon measurements from Japan’s Lake Suigetsu will give scientists a more accurate benchmark for dating materials, especially for older objects, according to a research team that included Oxford University’s Radiocarbon Accelerator Unit. The research team extracted cores of beautifully preserved layers of sediment, containing organic material (such as tree leaf and […]
SEA MONSTER ‘PREDATOR X’ GETS OFFICIAL NAME
October 19th, 2012
riffin It’s official: A giant, marine reptile that roamed the seas roughly 150 million years ago is a new species, researchers say. The animal, now named Pliosaurus funkei, spanned about 40 feet (12 meters) and had a massive 6.5-foot-long (2 m) skull with a bite four times as powerful as Tyrannosaurus rex. “They were the top predators of the […]
Mayfly With Springtail Hitchhiker: Amber Specimen — 16 Million Years Old — Reveals Unknown Animal Behaviors
October 18th, 2012
riffin Stunning images, including video footage, from a CT scan of amber have revealed the first evidence of any creature using an adult mayfly for transport. Researchers at the University of Manchester say this 16-million-year-old hitchhiker most likely demonstrates activity that is taking place today but has never previously been recorded. Entombed in amber the tiny […]
The Science Behind Those Eye-Popping Northern Lights
October 17th, 2012
riffin Northern night skies have recently been alive with light. Those shimmering curtains get their start about 93 million miles away, on the sun. An aurora borealis (aurora australis in the Southern Hemisphere) is precipitated by explosions on the surface of the sun, sometimes starting as solar flares, said Robert Nemiroff, an astrophysicist at Michigan Technological […]
Rare Evidence Of Dinosaur Cannibalism: Meat-Eater Tooth Found In Gorgosaurus Jawbone
October 16th, 2012
riffin University of Alberta researcher Phil Bell has found 70 million year old evidence of dinosaur cannibalism. The jawbone of what appears to be a Gorgosaurus was found in 1996 in southern Alberta. A technician at the Royal Tyrell Museum found something unusual embedded in the jaw. It was the tip of a tooth from another meat-eating dinosaur. […]



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