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Latest Ediacaran biota Stories

paleontological reconstruction of rangeomorph fronds
2014-08-13 04:00:43

University of Cambridge New three-dimensional reconstructions show how some of the earliest animals on Earth developed, and provide some answers as to why they went extinct. A bizarre group of uniquely shaped organisms known as rangeomorphs may have been some of the earliest animals to appear on Earth, uniquely suited to ocean conditions 575 million years ago. A new model devised by researchers at the University of Cambridge has resolved many of the mysteries around the structure,...

Discovery Of A Prehistoric Reef Built By First Hard-Shelled Animals
2014-06-27 11:22:17

Gerard LeBlond for redorbit.com - Your Universe Online Located on dry land in Namibia is a 550-million-year-old reef that researchers say was built by the first hard-shelled animals. It is one of the oldest reefs known and tiny aquatic fossils have revealed that the creatures developed hard protective coats and constructed the reefs for shelter and safety. The study, led by Professor Rachel Wood of the University of Edinburgh, and collaborated on with other scientists from Edinburgh,...

Image 1 - Paleontologists Discover Oldest Organism With A Skeleton
2012-03-10 05:50:09

Paleontologists have discovered the oldest organism with a skeleton in Australia. The creature is called Coronacollina acula and is estimated to be between 550 and 560 million years old. Paleontologists estimate this animal is from the Ediacaran Period, before the diversification of organisms in the Cambrian Period. The study results appeared online February 14 in Geology. This important find could be the key to unlocking several questions about early life, evolution, and extinction....

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2010-03-25 10:28:25

In the '80s, Spanish researchers found the first fossils of Cloudina in Spain, a small fossil of tubular appearance and one of the first animals that developed an external skeleton between 550 and 543 million years ago. Now paleontologists from the University of Extremadura have discovered a new species, Cloudina carinata, the fossil of which has preserved its tridimensional shape. "Cloudina carinata is characterized by its elaborate ornamentation and complexity of the shells and tube that...

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2008-03-20 14:30:00

UC-Riverside paleontologist makes discovery using fossils excavated in South Australian outback RIVERSIDE, Calif. "“ Two paleontologists studying ancient fossils they excavated in the South Australian outback argue that Earth's ecosystem has been complex for hundreds of millions of years "“ at least since around 565 million years ago, which is included in a period in Earth's history called the Neoproterozoic era. Until now, the dominant paradigm in the field of paleobiology has...

2008-02-29 03:00:00

By Dong, Lin Xiao, Shuhai; Shen, Bing; Zhou, Chuanming Abstract: Horodyskia is one of the earliest known macroscopic life forms, with a fossil record dating from c. 1.4 Ga. Palaeopascichnus represents a key Ediacaran element with world-wide distribution. However, their body constructions and affinities are poorly understood, partly because previously described species are mostly preserved as casts and moulds in siliciclastic rocks. Silicified specimens from the upper Ediacaran Liuchapo...

2008-01-23 03:00:16

By Hofmann, H J O'Brien, S J; King, A F ABSTRACT- Newly found fossils in the Conception and St. John's groups of the Bonavista Peninsula considerably extend the known geographic distribution of the Ediacaran fossils in Newfoundland. They occur in deepwater sediments and are preserved as epireliefs, forming census populations underneath volcanic ash layers throughout a more than 1 km thick turbiditic sequence. The exposed fossiliferous units comprise the Mistaken Point, Trepassey, Fermeuse,...

2007-11-11 03:00:00

By Shen, Bing Xiao, Shuhai; Dong, Lin; Zhou, Chuanming; Liu, Jianbo ABSTRACT- Upper Neoproterozoic successions in the North China and nearby Chaidam blocks are poorly documented. North China successions typically consist of a diamictite unit overlain by siltstone, sandstone, or slate. Similar successions occur in Chaidam, although a cap carbonate lies atop the diamictite unit. The diamictites in both blocks have been variously interpreted as Cryogenian, Ediacaran, or Cambrian glacial...

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2005-07-19 12:40:00

Unusually preserved fossils discovered by Virginia Tech, Nanjing Institute researchers shed new light on how macroscopic, complex life evolved and lived 550 million years ago. Astrobiology Magazine -- Scientists interested in ancient life have a wealth of fossils and impressions frozen in rocks that they can study from as far back as 540 million years ago - when animals with shells and bones began to become plentiful. But evidence of complex life older than 540 million years is scant and...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'