Doushantuo type preservation

Doushantuo type preservation

The preservational mode of the Doushantuo formation involves very early phosphatisation on a cellular level - with cells being replaced by phosphate before they degrade.[1]

Contents

Occurrence

The mode of preservation is typically found in shallow, high energy waters, as lenses of phosphate in carbonate rocks.[1] Its occurrence is assisted by high concentrations of phosphate, which are presumably led to precipitate around the degradation products of cells and cell walls.[1]

What is preserved

Cells are preserved at a cellular level, with arguments that sub-cellular structures may even represent cell nuclei.

Bias

Although the preservational window is open pretty continually from about 580 million years ago[verification needed] through most of the Cambrian, it tends to preserve microscopic things, such as embryos and bacteria.[1]

References

  1. ^ a b c d Butterfield, Nicholas J. (2003). "Exceptional Fossil Preservation and the Cambrian Explosion". Integrative and Comparative Biology 43 (1): 166–177. doi:10.1093/icb/43.1.166. PMID 21680421. 

Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Lagerstätte — The title of this article contains the character ä. Where it is unavailable or not desired, the name may be represented as Lagerstaette. Fossil fish from the Green River Formation, an Eocene Lagerstätte A Lagerstätte …   Wikipedia

  • Maotianshan Shales — Maotianshania cylindrica, a fossil nematomorph worm, Early Cambrian, Chengjiang Maotianshan Shales Part of a series on The Cambrian explosion …   Wikipedia

  • Sponge — This article is about the aquatic animal. For the porous cleaning tool, see Sponge (material). For other uses, see Sponge (disambiguation). Sponge Temporal range: Ediacaran–Recent …   Wikipedia

  • Cambrian — For other uses, see Cambrian (disambiguation). Cambrian Period 542–488.3 million years ago …   Wikipedia

  • Cambrian explosion — The Cambrian explosion or Cambrian radiation was the seemingly rapid appearance of most major groups of complex animals around Ma|530, as evidenced by the fossil record. [http://www.ucmp.berkeley.edu/cambrian/camb.html The Cambrian Period] ]… …   Wikipedia

  • Ediacara biota — The Ediacara (IPAEng|ˌiːdɪˈækərə, formerly Vendian) biota are ancient lifeforms of the Ediacaran Period, which represent the earliest known complex multicellular organisms. They appeared soon after the Earth thawed from the Cryogenian period s… …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • Kimberella — Taxobox image caption = Cast of a partial Kimberella fossil. The bulges at the top of the image are the sides of the organism, and surrounded the rim of the creature; these are further flanked with a line which may represent the extent of a… …   Wikipedia

  • Lagerstätte — Diplomystus dentatus de la Formation de Green River, un Lagerstätte de l Éocène Un Lagerstätte (en allemand; littéralement lieu de stockage; pluriel Lagerstätten) est un dépôt sédimentaire qui contient une grande diversité de fossiles ou des… …   Wikipédia en Français

  • Explosion cambrienne — L’explosion cambrienne (il y a entre 542 et 530 Ma) désigne l apparition soudaine à l échelle géologique de la plupart des grands embranchements actuels de métazoaires (animaux pluricellulaires)[1] ainsi qu une grande diversification des espèces… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”