Ancient Egg Cluster Preserved in Glass

The first fossils of half-billion-year-old clusters of soft-shelled eggs have been found preserved in a strange new way in south China — some of the eggs were even caught in the act of dividing.

The three-dimensional clusters of petrified eggs from invertebrate animals that lived in a sea 501 million to 510 million years ago are preserved in silica — glass essentially. Jih-Pai Lin, an Ohio State University paleontologist, explained this is a totally unexpected way for soft eggs to fossilize and survive for eons.

Lin is the lead author of a report on the egg clusters published in the December issue of the journal Geology.

The first fossils of half-billion-year-old clusters of soft-shelled eggs have been found preserved in a strange new way in south China — some of the eggs were even caught in the act of dividing.

The three-dimensional clusters of petrified eggs from invertebrate animals that lived in a sea 501 million to 510 million years ago are preserved in silica — glass essentially. Jih-Pai Lin, an Ohio State University paleontologist, explained this is a totally unexpected way for soft eggs to fossilize and survive for eons.

Lin is the lead author of a report on the egg clusters published in the December issue of the journal Geology.

"The cool thing about this is the preservation," said Amherst College paleontologist Whitey Hagadorn, referring to the silica replacing the eggs' soft parts.

Previous eggs and embryos from the Cambrian and earlier have been found in calcium carbonate-rich and phosphate-rich rocks, which in many ways probably resembled the original chemistry of the sediments in which the eggs were laid.

The silica fossil eggs that Lin and his colleagues are studying, on the other hand, required an entirely different fossilization process that is more like that of the highest quality petrified wood.

Details of structures even inside individual cells can sometimes be seen. The silica supply for the fossilization probably came from glass spicules of sponges found in the same rocks, Lin surmised.

"That's something we hadn't known before," said Hagadorn of the silica preservation.

Lin explained the discovery of this method of preserving eggs means there's a whole class of rocks from the Cambrian Era in various parts of the world that can be explored for more ancient eggs and embryos.

600450 Ancient Egg Cluster Preserved in Glass glassonweb.com
Date: 27 December 2006
Source: Dsc.discovery.com

See more news about:

See more from these topics:

Others also read

As the world leading 100% fully tempered vacuum insulated glass, LandVac ensured the successful development of a military project.
Kohn Pedersen Fox (KPF) proudly supported the opening of MGM COTAI on Tuesday, February 13 2018. The resort is the latest addition to the MGM portfolio in Macau.
With various features including light weight, thin thickness, clear transparency, high safety, and extensive use in many aspects of building construction without regional limitation, LandVac has been well received by consumers.
As the launch pad for new products and technologies on window, door and facade in China, the 24th Windoor Expo will take place in Guangzhou from March 11 to March 13, 2018.
Considering the use of energy-saving glass as the determinant of a building’s power conservation, vacuum insulated glass currently offers the most outstanding performance in energy-saving. Among them, LandVac® is one of the best.
Recently, LandGlass is successfully selected into the list of the Innovative Large Enterprises of the City by the department of science and technology in Luoyang.

From industry

No. 160 Yichuan Rd.,
Jiaonan Shi
Qingdao Shi
Shandong Sheng, 266000
China

Add new comment