Close  

Scientists discover 550 million-year-old bilaterian fossil in China

/ 05:58 PM September 08, 2019
This Sept 4, 2019 shows an artist's reconstruction of Yilingia spiciformis worm. (AFP/SHUHAI XIAO / ZHE CHEN / VIRGINIA TECH UNIVERSITY )

This Sept 4, 2019 shows an artist’s reconstruction of Yilingia spiciformis worm. AFP/SHUHAI XIAO / ZHE CHEN / VIRGINIA TECH UNIVERSITY via Jakarta Post/Asia News Network

NANJING, China — An international research team recently discovered a segmented bilaterian fossil about 550 million years old in China, which represents one of the oldest mobile and segmented animals.

The new fossil species, found in the Yangtze Gorges area, is named Yilingia spiciformis. It is directly connected with its trace produced immediately before its death, allowing the researchers to unravel critical evolutionary puzzles of the bilaterally symmetric animals, also known as bilaterians.

ADVERTISEMENT

The research was published in the journal Nature last Thursday Beijing time by the team which consists of researchers from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences and Virginia Tech in the United States.

The origin of bilaterians with a segmented body is a monumental event in early animal evolution.

FEATURED STORIES

Although scientists have estimated on the basis of molecular clock analyses that mobile and segmented bilaterians existed in the Ediacaran Period (635-539 million years ago), there had previously been no convincing fossil evidence.

As one of the few Ediacaran animals demonstrably capable of producing long and continuous trails, Yilingia spiciformis sheds new light on the puzzle, according to the team.

The origin of motile animals had a profound environmental and ecological impact, and ultimately led to the Cambrian substrate and agronomic revolutions. 

Read Next
LATEST STORIES
MOST READ
Don't miss out on the latest news and information.
View comments

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

TAGS: Animals, Asia, Bilaterian Fossil, China, Research, science
For feedback, complaints, or inquiries, contact us.
lifestyle

John Lennon’s round glasses sell for nearly $200,000

December 14, 2019 11:39 AM

newsinfo

Elderly ‘bookies’ bet collector held in Quezon

December 14, 2019 10:50 AM

newsinfo

Plane bound for Japan veers off Naia runway

December 14, 2019 10:45 AM

globalnation

US Pacific commander says China seeks to intimidate region

December 14, 2019 10:44 AM



© Copyright 1997-2019 INQUIRER.net | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.