Palaeospondylus: Long-standing mystery of vertebrate evolution solved using powerful X-rays riken_en nature
Palaeospondylus as reconstructed by synchrotron radiation x-ray computed tomography. Credit: RIKEN
Palaeospondylus was a small fish-like vertebrate, about 5 cm long, which had an eel-like body and lived in the Devonian period about 390 million years ago. Although fossils are abundant, its small size and the poor quality of cranial reconstructions—by both CT scan and wax models—have made placing it on thedifficult ever since its discovery in 1890. It's been thought to share features with both jawed and jawless fish and its body has presented evolutionary scientists as a mystery.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
2 Women Die in Separate Hit-and-Runs on Long IslandTwo women were killed in separate hit-and-runs on Long Island about 15 minutes apart last night. Here's what we know so far.
Les mer »
Sale of Long-Lost ‘Wizard of Oz' Dress Put on Hold as Ownership Is ChallengedThe dramatic story of an iconic movie costume from “The Wizard of Oz” thought lost for decades went through another plot twist Monday, when a judge blocked its planned sale at a Los Angeles acution.
Les mer »
Long Covid-19: 'I'm physically and mentally not able to do anything'Michelle Kibble almost died after getting Covid-19, which she says has left her struggling to cope.
Les mer »
Brain fog, other long Covid symptoms can last more than a year, study findsThe new research is the longest follow-up study of the neurological symptoms among long Covid patients.
Les mer »
Why did it take the GOP so long to panic about Herschel Walker?Walker surged to a massive lead in the primary off his celebrity and Donald Trump's endorsement, but a number of Republicans worry he can't win in November.
Les mer »
Sale Of Long-Lost ‘Wizard of Oz’ Dress Put On Hold By JudgeAuctioneers listed a presale estimate of $800,000 to $1.2 million for the dress before it was withdrawn.
Les mer »