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Marrella
| Scientific Classification |
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Marrella is an extinct animal that
luved during the
Cambrian period. It is the most common
fossil
found in the Burgess Shale in the Canadian Rockies in British Columbia,
Canada.
Marrella was a small bottom-dwelling ("benthic") animal, about ¾ inch (2 centimeters) or less
in length. It had a body consisting of 24 to 26 segments each with a
pair of appendages - the appendages each have two branches, a lower
branch for walking, and a upper branch with a feathery gill. The animal
also a head with two long backward pointing spikes, and eyes beneath
the head.
There has been some debate about how Marrella
should be classified.
The first
fossil
was described by its discoverer, Charles Walcott,
informally as a "lace crab", and more formally as a odd
Trilobite.
However, while it seems clear that Marrella is a member of the Arthropod
phylum (the group containing insects, crustaceans, millipedes, etc.), it
does not easily fit into any of the major subdivisions,
Marrella has major differences (too many antennae, too few segments per leg,
and too few legs) to be a
Trilobite,
and does not seem to be a Crustacean (a member of the group containing crabs, lobsters, shrimp, etc.),
and nor does it seem to be a Chelicerate (a member of the group containing
scorpions, spiders, horseshoe crabs, etc.).
Today, the general thinking is that Marrella must be a stem group Arthropod -
that is to say that it is descended from an ancestor of most/all other
Arthropod groups.
Marrella marine animal that lived during the Cambrian period
Related Information & Resources
Related Web Sites
See Also
Marrella Pictures and Posters
by AllPosters
Here are some Marrella pictures and posters:
(Disclosure: Products details and descriptions provided by AllPosters. Our company may receive a payment if you purchase products from them after following a link from this website).
Marrella Books
Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
By Len Marrella
DC Press
Paperback (374 pages)
 | List Price: $19.95*
Lowest New Price: $4.77*
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*(As of 20:30 Pacific 17 May 2012 More Info)
Click Here | Product Description:
American society seems to be in a constant state of recovery from a series of attacks on our social and economic morals and ethics. From the never-ending embarassment of the Clinton sex scandals to the fall of such personalities as Martha Stewart, it seems that there is a new challenge to character every day. Pick up a newspaper or listen to the evening news and you'll find something to stimulate discussion at the dinner table or around the boardroom table. Our educational system seems to be in disrepair and in need of bolstering. Lying, cheating, fraud, and deception seem to be growing exponentially in all parts of American life. Parents -- even the best and most committed -- find themselves confronted by forces outside the home that threaten the fiber that holds families together. As a nation we seem to have positions and points of view that are measurable and appear to reflect cohesiveness on many issues. However, ours is a society that has wrapped itself tightly in the shroud of political correctness -- sometimes so tightly that we appear to speak out of both sides our mouths. In the pst decade our actions surely have spoken louder than our words. This stimulating and inspirational book points out the quicksand that we all walk upon daily and illustrates his message with interviews and commentaries with some fascinating people who had to look moral and ethical challenges in the face and decide for themselves how they were going to handle their own "Ethics Gate." Each person interviewed represents all that is great and outstanding about the United States and Canada. While they come from divergent walks of life, they are -- each and every oone -- role models for each of us. Read inspiring interviews with Mike Krzyzewski (championship basketball coach, Duke University), Sue Myrick (U.S. House of Representatives), John Naber (U.S. Olympian), and CEOs, educators, religious and military leaders, volunteers, and ordinary citizens leading ethical lives. Added to this new edition are interviews with Charles Krulak, Vice Chairman of MBNA America Bank and Nancy Olivieri, MD, a Canadian physician who refused to turn a deaf ear on life-threatening drug testing on children and stood up for morality. It isn't always easy to make the right decison and take the right course. All of us can use a push in the right direction from time to time. The interviews and commentary in this book just might serve as an important step in finding and taking the positive direction. |
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By Dee Marrella
DC Press
Paperback (310 pages)
 | List Price: $16.95*
Lowest New Price: $15.99*
Lowest Used Price: $5.28*
*(As of 20:30 Pacific 17 May 2012 More Info)
Click Here | Product Description:
Odds are that most Americans will one day be in the hands of a caregiver. Odds are that the caregiver will not be a spouse or adult child -- but a stranger. Regardless of who cares for us, it is critical that we provide those people with all of the information we can that will make their jobs and our lives easier. This diary-sized book allows any of us to write down those critical bits of data that we want our caregivers to know about us. Here we can share our thoughts on topics ranging from "favorite foods" to "fears," from "the medications I take" to "how I want my funeral to be handled." A stranger -- even our own spouses -- might now know these things. Regarded as one of the most important books to come out in recent years, this new edition adds many new and important features suggested by users around North America. Here's a gift you can give yourself -- and those you love. |
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By Ancestry.com
Ancestry.com
Paperback (84 pages)
 | List Price: $19.95*
Lowest New Price: $19.95*
Usually ships in 24 hours*
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Click Here | Product Description:
This book is part of the Our Name in History series, a collection of fascinating facts and statistics, alongside short historical commentary, created to tell the story of previous generations who have shared this name. The information in this book is a compendium of research and data pulled from census records, military records, ships' logs, immigrant and port records, as well as other reputable sources. Topics include: - Name Meaning and Origin
- Immigration Patterns and Census Detail
- Family Lifestyles
- Military Service History
- Comprehensive Source Guide, for future research
Plus, the "Discover Your Family" section provides tools and guidance on how you can get started learning more about your own family history.
About the Series
Nearly 300,000 titles are currently available in the Our Name in History series, compiled from Billions of records by the world's largest online resource of family history, Ancestry.com. |
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Cambridge University Press
Hardcover (350 pages)
 | List Price: $110.00*
Lowest New Price: $44.00*
Lowest Used Price: $494.99*
Usually ships in 24 hours*
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Economic globalisation is one of the guiding paradigms of the twenty-first century. The challenge it implies for human rights is fundamental, and key questions have up to now received no satisfying answers. How can human rights protect human dignity when economic globalisation has an adverse impact on local living conditions? How should human rights evolve in response to a global economy in which non-statal actors are decisive forces? Economic Globalisation and Human Rights was originally published in 2007, and sets out to assess these and other questions to ensure that, as economic globalisation intensifies, human rights take up the central and crucial position that they deserve. Using a multidisciplinary methodology, leading scholars reflect on issues such as the need for global ethics, the localisation of human rights, the role of human rights in WTO law, and efforts to make international economic organisations more accountable and multinational corporations more socially responsible. |
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By Patricia MacLachlan
HarperCollins
Released: 1994-02-17
Paperback (64 pages)
 | List Price: $4.99*
Lowest New Price: $0.96*
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It's not fair, Emma thinks, for her parents to go away (for five whole days) and leave her with an aunt and uncle she hardly knows. What if they don't like children? But Aunt Evelyn and Uncle Eliot like Emma and her brother, Zachary, just fine. They also like rules. Rules about: Eating. Sleeping. Cleaning up. Messing up. Emma doesn't believe in rules. Not unless they're hers: Eating no broccoli, dead or alive. Sleeping: No sleeping in a room where night rumbles hide. Cleaning up: Don't. Messing up: Do. Emma can see that Aunt Evelyn and Uncle Elliot have a lot to learn about being parents. But that's okay---because Emma has five whole days in which to teach them. |
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By Fabrizio Marrella
Paperback
 | | Product Description:
Collana Dipartimento di Scienze Giuridiche Universita Degli Studi Ca' Foscari -- Venezia. |
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By Luigi Marrella
Barbieri
Paperback (239 pages)
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By Luigi Marrella
Barbieri
Paperback (215 pages)
 | |
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By Luigi Marrella
Barbieri
Paperback (143 pages)
 | |
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By Henry Blackmore. Whittington
Dept. of Energy, Mines and Resources
Paperback
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