Exceptional Fossil Preservation: A Unique View on the Evolution of Marine Life

By David J. Bottjer; Walter Etter et al. | Go to book overview

3
Chengjiang:
Early Record of the Cambrian Explosion
James W. Hagadorn

When I found the first fossil … I knew right away that it was an arthropod with paired appendages, extending forward, as if it was swimming on the moistened surface of a mudstone. But I realized that you could see the impression of the soft body parts. That night I put the fossils under my bed. But because I was so excited, I couldn't sleep very well. I got up often and pulled out the fossils just to look at them.

This is how Chinese paleontologist Hou Xianguang (personal communication, 2000) describes his initial reaction to the discovery of the Chengjiang Lagerstätte. In 1984, Hou was working on bradoriid-rich deposits at Maotian Hill, near the town of Chengjiang in the Yunnan Province of China (Figure 3.1). He split open a rock on the west face of the mountain to reveal an unusual arthropod: the softbodied trilobite Naraoia (Gore 1993; Monastersky 1993). Although a few obscure soft-bodied fossils from the Chengjiang deposit had been published (Mansuy 1912; Pan 1957), Hou was the first to recognize both Chengjiang's status as a Lagerstätte and its link to other soft-bodied deposits like the Burgess Shale. Considering the impact this deposit has had on the paleontological community, his enthusiastic reaction was more than justified.

The Chengjiang deposit is a conservation Lagerstätte that contains a variety of soft-bodied and biomineralized metazoans representing one of the earliest records of the Cambrian explosion in metazoan diversity. The Chengjiang biota is quite diverse, including algae, acritarchs, sponges, chancellorids, anemones, ctenophores, hyoliths, inarticulate

-35-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this book

This book has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited page

Bookmark this page
Exceptional Fossil Preservation: A Unique View on the Evolution of Marine Life
Table of contents

Table of contents

Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
/ 403

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Author Advanced search

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.