PHOSPHATIZED ANIMAL EMBRYOS FROM THE NEOPROTEROZOIC DOUSHANTUO FORMATION AT WENG'AN, GUIZHOU, SOUTH CHINA

@inproceedings{Xiao2000PHOSPHATIZEDAE,
  title={PHOSPHATIZED ANIMAL EMBRYOS FROM THE NEOPROTEROZOIC DOUSHANTUO FORMATION AT WENG'AN, GUIZHOU, SOUTH CHINA},
  author={Shuhai Xiao and Andrew H. Knoll},
  year={2000}
}
  • S. XiaoA. Knoll
  • Published 1 September 2000
  • Geography, Environmental Science
Abstract Phosphorites of the uppermost Neoproterozoic Doushantuo Formation (ca. 570 ± 20 Ma) exposed at Weng'an, South China, contain globular microfossils characterized by distinctively sculpted outer coverings and precise patterns of cell division. Forms assigned to the genera Megasphaera and Parapandorina were originally interpreted as problematica and volvocacean green algae, respectively, but newly discovered populations support their reinterpretation as the eggs and embryos of early… 

Complex embryos displaying bilaterian characters from Precambrian Doushantuo phosphate deposits, Weng'an, Guizhou, China

These embryos provide further evidence for the presence of bilaterian animals in the Doushantuo biota and indicate that the last common ancestor of the bilaterians lived much earlier than is usually thought.

Precambrian phosphatized embryos and larvae from the Doushantuo Formation and their affinities, Guizhou (SW China)

Weng’an phosphates of the Precambrian Doushantuo Formation, Guizhou (southwestern China) preserve a large number of exquisite biological structures, which are mostly micro-spherical and represent

Phosphatized biotas from the Neoproterozoic Doushantuo Formation on the Yangtze Platform

The Doushantuo Formation in South China was deposited after the Nantuo glaciation but before the evolution of complex Ediacaran metazoans. It contains multiple taphonomic windows, in its cherts,

NEW MULTICELLULAR ALGAL FOSSILS AND ACRITARCHS IN DOUSHANTUO CHERT NODULES (NEOPROTEROZOIC; YANGTZE GORGES, SOUTH CHINA)

  • S. Xiao
  • Geography, Environmental Science
  • 2004
The late Neoproterozoic Doushantuo Formation in South China contains several exceptionally preserved biotas in its cherts, phosphorites, and black shales (Xiao et al., 1998b, 2002; Zhang et al.,

Doushantuo embryos preserved inside diapause egg cysts

The discovery of embryo-like Doushantuo fossils inside large, highly ornamented organic vesicles (acritarchs) indicates that these organisms were eukaryotic, and most probably early cleavage stage embryos preserved within diapause egg cysts.

Phosphatized Acanthomorphic Acritarchs and Related Microfossils from the Ediacaran Doushantuo Formation at Weng'an (South China) and their Implications for Biostratigraphic Correlation

Abstract The Doushantuo Formation at Weng'an in Guizhou Province, South China, is best known for animal embryo-like microfossils preserved in phosphorites. However, this unit also contains a diverse

Possible Algal Origin and Life Cycle of Ediacaran Doushantuo Microfossils with Dextral Spiral Structure

Abstract In Ediacaran shallow-water dolomites of the Doushantuo Formation (ca. 570 Ma) of southern China, scarce phosphatized microfossils consisting of clusters of coil-like spheroids called

EARLY CAMBRIAN METAZOAN EGGS, EMBRYOS, AND PHOSPHATIC MICROFOSSILS FROM NORTHWESTERN CANADA

Abstract Three-dimensionally phosphatized, spherical fossils, interpreted as metazoan eggs and embryos on the basis of taphonomic features and cleavage patterns, are reported for the first time from
...

References

SHOWING 1-10 OF 92 REFERENCES

Fossil preservation in the Neoproterozoic Doushantuo phosphorite Lagerstatte, South China.

The same processes that gave rise to Phanerozoic phosphatized Lagerstatten--phosphatic encrustation, and impregnation, probably mediated by microbial activity--effected soft-tissue preservation in the Doushantuo Lagerstatte.

Morphological reconstruction of Miaohephyton bifurcatum, a possible brown alga from the Neoproterozoic Doushantuo Formation, South China

This reinterpretation of Miaohephyton bifurcatum indicates that photosynthetic stramenopiles diversified during the Neoproterozoic Era along with the red and green algae.

Permineralized Fossils from the Terminal Proterozoic Doushantuo Formation, South China

Permineralized fossils of the terminal Proterozoic (600–550 Ma) Doushantuo Formation, China, provide an unusually clear window on biological diversity just before the Ediacaran radiation. In the

Multicellular thallophytes with differentiated tissues from Late Proterozoic phosphate rocks of South China

An assemblage of megascopic, multicellular thallophytes with well-preserved tissues and microstructures was discovered in phosphate rocks of the Late Proterozoic Doushantuo Formation (approximately

Articulated Halkieriids from the Lower Cambrian of North Greenland and their Role in Early Protostome Evolution

The hypothesis of halkieriids and their relatives having a key role in annelid-brachiopod-mollusc evolution is in accord with some earlier proposals and recent evidence from molecular biology, but casts doubt on a number of favoured concepts.

New data on multicellular thallophytes and fragments of cellular tissues from Late Proterozoic phosphate rocks, South China

New fossil forms discovered from the local rock bed demonstrate the possible existence of a community with relatively high diversity in Wengan shallow sea and confirms that an evolutionary radiation of mctaphylcs look place during Ediacaran time, shortly after the Nantuo glacial epoch.

Vendian microfossils in metasedimentary cherts of the Scotia Group, Prins Karls Forland, Svalbard.

  • A. Knoll
  • Environmental Science, Geology
    Palaeontology
  • 1992
The Scotia fossils bear a close resemblance to assemblages described from the Doushantuo Formation, China and elsewhere, demonstrating the broad geographical distribution of biostratigraphically important Vendian taxa.

Neonereites uniserialis from c. 600 Ma year old rocks in western Scotland and the emergence of animals

A chain of pellets (Neonereites uniserialis), usually attributed to a coelomate or pseudocoelomate metazoan, is described from the middle Dalradian Bonahaven Formation of western Scotland, in

Reproductive Cycle and Developmental Processes During Embryogenesis of Clavularia hamra (Cnidaria, Octocorallia)

The external mode of embryo development on the surface of the parent colony reduces dispersal of the planulae, however, this reproductive feature enhances formation of locally dense populations of C. hamra, with distinct habitat preferences.
...