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Scientists in Japan unearth 72-million-year-old Fossil of the largest complete Dinosaur Skeleton

The latest discovery marks just the third time a Hadrosaurid fossil has been recovered from marine deposits

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Dinosaur Skeleton
Scientists in Japan have unearthed fossils of the duck-billed dinosaur species, Wikimedia
  • The discovered bones belong to a certain specimen of a duck-billed dinosaur
  • The latest discovery marks just the third time a Hadrosaurid fossil has been recovered from marine deposits
  • The exact species of the newly discovered dinosaur is still unknown, but scientists have decided to name the dino as “Mukawaryu

Japan, June 6, 2017:  Scientists in Japan have unearthed the record-breaking 72-million-year-old fossil of the largest complete dinosaur skeleton of the island nation in Japan’s northern island of Hokkaido.

The discovered bones belong to a certain specimen of a duck-billed dinosaur. Paleontologists from Hokkaido University and Hobetsu Museum in Mukawa have been indulged in the excavation of the skeleton since 2013.

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Other such fossils of the duck-billed dinosaur species, or Hadrosaurus, have been discovered in Eurasia, North America, South America, and Antarctica. According to available information about the species, The herbivores roamed the earth during the Late Cretaceous Period, between 100 million and 66 million years ago.

According to UPI reports, the latest discovery marks just the third time a Hadrosaurid fossil has been recovered from marine deposits. It is notably rare for a complete skeleton to be discovered in marine strata. Any fossil skeleton with more than 50 percent of the specimen’s bones intact is considered to be a complete skeleton.

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The exact species of the newly discovered dinosaur is still unknown, but scientists have decided to name the dino as “Mukawaryu,” Japanese for Mukawa dragon.

In a news release, lead researcher Yoshitsugu Kobayashi said,  “We first discovered a part of the fossilized Mukawaryu skeleton in 2013, and after a series of excavations, we believe we have cleaned more than half of the bones the dinosaur had, making it clear that it is a complete skeleton.”

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The main Hadrosaurid family tree can be divided into two distinct groups- species with a crest belong to Lambeosaurinae, uncrested species belong to Hadrosaurinae.

Kobayashi also stated that although Mukawaryu bears some characteristics of both groups, the preliminary analysis indicated it might belong to the Hadrosaurinae. Which group the Mukawaryu skeleton belongs to will surely be cleared by further cleaning of the fossils and detailed research.

– prepared by Durba Mandal of NewsGram. Twitter: @dubumerang

 

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USA: Everything you want to know about Security Clearance; Find out here!

A security clearance allows a person access to classified national security information or restricted areas.

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Former CIA Director John O. Brennan speaks at the Council on Foreign Relations in Washington, March 11, 2014. President Donald Trump revoked Brennan's security clearance Wednesday. VOA
Former CIA Director John O. Brennan speaks at the Council on Foreign Relations in Washington, March 11, 2014. President Donald Trump revoked Brennan's security clearance Wednesday. VOA

U.S. President Donald Trump on Wednesday revoked the security clearance of former CIA Director John Brennan. We take a look at what that means.

What is a security clearance?

A security clearance allows a person access to classified national security information or restricted areas after completion of a background check. The clearance by itself does not guarantee unlimited access. The agency seeking the clearance must determine what specific area of information the person needs to access.

What are the different levels of security clearance?

There are three levels: Confidential, secret and top secret. Security clearances don’t expire. But, top secret clearances are reinvestigated every five years, secret clearances every 10 years and confidential clearances every 15 years.

All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance. VOA
All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance. VOA

Who has security clearances?

According to a Government Accountability Office report released last year, about 4.2 million people had a security clearance as of 2015, they included military personnel, civil servants, and government contractors.

Why does one need a security clearance in retirement?

Retired senior intelligence officials and military officers need their security clearances in case they are called to consult on sensitive issues.

Also Read: Governments Across The World Request Apple for 30,000 Device Information

Can the president revoke a security clearance?

Apparently. But there is no precedent for a president revoking someone’s security clearance. A security clearance is usually revoked by the agency that sought it for an employee or contractor. All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance, which can include criminal acts, lack of allegiance to the United States, behavior or situation that could compromise an individual and security violations. (VOA)