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Ammonites
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| Scientific Classification |
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Ammonites are an extinct group of cephalopod molluscs that lived in
marine environments. They first appeared in the Late Silurian
or Early Devonian (about 400 million years ago), and went extinct
at the end of the
Cretaceous period
(about 65 million years ago), during the
Cretaceous-Tertiary mass extinction.
Although they outwardly physically resemble the modern Nautilus, Ammonites
are actually believed to be more closely related to cuttlefish, octopi,
and squid.
Ammonite
fossils are often (but not
always) a distinctive flattened spiral coil with visible ribs, although there
are species with unusual coil shapes, partially coiled shells, and even
uncoiled shells.
Most Ammonites are quite small, perhaps 9 inches (23 centimeters) or less
in diameter - there are however some larger types, for example
Parapuzosia seppenradensis which is found in
Cretaceous
rocks from
Germany
is sometimes upto 6½ feet (2 meters) in diameter,
Fossilized ammonites preserved in rock:
Ammonite fossils have been known
since ancient times:
- The Roman author, Pliny the Elder (23 CE to 79 CE) called the
fossils,
the "horns of Ammon", because he thought that they resembled
the ram's horns which the Egyptian god Ammon was depicted with.
- In medieval times, Ammonites were often thought to be petrified snakes,
and were often called "snake stones" or
"serpent stones". The supposed petrification was usually ascribed to
the actions of saints such as Saint Patrick (who was said to have driven the snakes
out of Ireland).
- In India, Ammonites were sometimes regarded as symbols of the god Vishnu,
and were kept in temples.
Today, modern scientists often use Ammonites and Amminoids
as "index fossils"
(fossils which are used to help
date the rocks that they are found in), particularly for
Mesozoic Era rocks. This
is possible because these fossils
are relatively abundant in rocks,
are widely distributed, and because different species evolved and went
extinct in rapid succession - thus the presence of a particular species
is indicative of rocks being formed in a particular time period.
Ammonites were cephalopod molluscs that lived in the seas between 400 and 65 million years ago
Related Information & Resources
See Also
Ammonite Books
Here are some books from Amazon.com:
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By Nicola Griffith
Griffith, Nicola
Released: April 30th, 2002
Paperback (416 pages)
 | Lowest New Price: $17.00*
Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your account will only be charged when we ship the item.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Ammonite- Manufacturer: Del Rey
- Brand: Griffith, Nicola
- ISBN: 0345452380
- EAN: 9780345452382
- PartNumber: 9780345452382
Details:- Paperback
- Edition: Reprint
- Number of Pages: 416
- Author: Nicola Griffith
- Publication Date: April 30th, 2002
- Release Date: April 30th, 2002
Physical Description:- Size: 8.25 Inches by 5.5 Inches by 0.9 Inches
- Weight: 1.05 Pounds
Click here for more information |
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By Neale Monks
Brand: Smithsonian Books
Paperback (176 pages)
 | List Price: $24.95*
Lowest New Price: $19.97*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Ammonites- Manufacturer: Smithsonian Books
- Brand: Brand: Smithsonian Books
- ISBNs: 9781588340474, 1588340473
- EAN: 9781588340474
- PartNumber: unknown
Details:- Paperback
- Edition: First Printing
- Number of Pages: 176
- Authors: Neale Monks, Philip Palmer
Physical Description:- Size: 9.21 Inches by 6.05 Inches by 0.4 Inches
- Weight: 0.78 Pounds
Features:- Used Book in Good Condition
Click here for more information |
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By Nicola Griffith
Gollancz
Released: September 1st, 2012
Paperback (416 pages)
 | Lowest New Price: $15.85*
Usually ships within 6 to 10 days.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Ammonite. by Nicola Griffith- Manufacturer: Gollancz
- ISBN: 0575118237
- EAN: 9780575118232
- PartNumber: unknown
Details:- Paperback
- Number of Pages: 416
- Author: Nicola Griffith
- Publication Date: September 1st, 2012
- Release Date: September 1st, 2012
Physical Description:- Size: 5.43306 Inches by 7.95274 Inches by 1.10236 Inches
- Weight: 0.64374980504 Pounds
Click here for more information |
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By Gem Books
CreateSpace Independent Publishing Platform
Released: June 9th, 2018
Paperback (150 pages)
 | Lowest New Price: $6.99*
Available to ship in 1-2 days.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Blank Journal - Fibonacci Ammonite Shell- Manufacturer: CreateSpace Independent Publishing Platform
- ISBN: 1720952787
- EAN: 9781720952787
Details:- Paperback
- Number of Pages: 150
- Author: Gem Books
- Publication Date: June 9th, 2018
- Release Date: June 9th, 2018
Physical Description:- Size: 9.0 Inches by 6.0 Inches by 0.34 Inches
- Weight: 0.47 Pounds
Click here for more information |
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By Penelope Lively
Penguin
Paperback
 | Lowest New Price: $12.49*
In stock. Usually ships within 4 to 5 days.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Ammonites and Leaping Fish: A Life in Time- Manufacturer: Penguin
- Brand: Penguin
- ISBN: 0241966981
- EAN: 9780241966983
- PartNumber: 9780241966983
Details:- Paperback
- Author: Penelope Lively
Physical Description:- Size: 7.79526 Inches by 5.07873 Inches by 0.59055 Inches
- Weight: 0.3747858454 Pounds
Features:Click here for more information |
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By Penelope Lively
Penguin Books
Released: June 23rd, 2015
Paperback (240 pages)
 | List Price: $17.00*
Lowest New Price: $6.76*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Dancing Fish and Ammonites: A Memoir- Manufacturer: Penguin Books
- ISBN: 014312627X
- EAN: 9780143126270
- PartNumber: unknown
Details:- Paperback
- Edition: Reprint
- Number of Pages: 240
- Author: Penelope Lively
- Publication Date: June 23rd, 2015
- Release Date: June 23rd, 2015
Physical Description:- Size: 7.7 Inches by 0.7 Inches by 5.0 Inches
- Weight: 0.4 Pounds
Click here for more information |
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By Ammonite Press
Ammonite Press
Released: October 1st, 2016
Paperback (512 pages)
 | List Price: $14.99*
Lowest New Price: $13.31*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
London: A City in Pictures- Manufacturer: Ammonite Press
- Brand: Ammonite Press
- ISBN: 1781452369
- EAN: 9781781452363
- PartNumber: 500 full colour photographs
Details:- Paperback
- Edition: 2nd Second Edition, Second ed.
- Number of Pages: 512
- Author: Ammonite Press
- Publication Date: October 1st, 2016
- Release Date: October 1st, 2016
Physical Description:- Size: 6.499987 Inches by 6.499987 Inches by 1.499997 Inches
- Weight: 2.05 Pounds
Features:Click here for more information |
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By Ammonite Press
Ammonite Press
Released: April 1st, 2012
Paperback (300 pages)
 | Lowest Used Price: $15.71*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
The 1930s (Britain in Pictures)- Manufacturer: Ammonite Press
- Brand: Ammonite Press
- ISBN: 1907708634
- EAN: 9781907708633
- PartNumber: approx.300 photos
Details:- Paperback
- Edition: New
- Number of Pages: 300
- Author: Ammonite Press
- Publication Date: April 1st, 2012
- Release Date: April 1st, 2012
Physical Description:- Size: 6.5 Inches by 6.5 Inches by 0.8 Inches
- Weight: 1.15 Pounds
Features:- Orders are despatched from our UK warehouse next working day.
Click here for more information |
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Ammonite Press
Released: June 1st, 2019
Hardcover (288 pages)
 | List Price: $14.95*
Lowest New Price: $11.69*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
The Beatles in Pictures- Manufacturer: Ammonite Press
- Brand: Ammonite Press
- ISBN: 1781453497
- EAN: 9781781453490
- PartNumber: 275 colour and B&W photographs
Details:- Hardcover
- Edition: None
- Number of Pages: 288
- Publication Date: June 1st, 2019
- Release Date: June 1st, 2019
Physical Description:- Size: 6.5 Inches by 6.5 Inches by 0.9 Inches
- Weight: 1.32 Pounds
Click here for more information |
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By Ammonite Press
imusti
Released: September 1st, 2011
Paperback (192 pages)
 | List Price: $13.95*
Lowest New Price: $11.85*
In Stock.*
*(As of 01:10 Pacific 30 Mar 2020 More Info)
Click Here | Description:
Churchill in "Quotes": Wit and Wisdom from the Great Statesman- Manufacturer: Ammonite Press
- Brand: imusti
- ISBN: 190667261X
- EAN: 9781906672614
- PartNumber: Illustrated
Details:- Paperback
- Number of Pages: 192
- Author: Ammonite Press
- Publication Date: September 1st, 2011
- Release Date: September 1st, 2011
Physical Description:- Size: 6.5 Inches by 6.5 Inches by 0.6 Inches
- Weight: 0.75 Pounds
Features:Click here for more information |
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