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Trilobites
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Scientific Classification |
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Trilobites are an extinct group of arthropods (the same phylum
that contains insects, spiders, crustaceans such as crabs and lobsters,
centipedes, millipedes, etc.). They first appeared in the early Cambrian
period about 530 million years ago, were largely wiped out during the
late Devonian mass extinction about 364 million years ago, and finally
went completely extinct during the Permian-Triassic
mass extinction that took place 248 million years ago.
Trilobites are one of the most well-known
fossil groups,
and highly diverse, and are found in many different locations.
Over 17,000 species are known from
fossils,
which are usually just of the animal's exoskeleton, although
occasionally soft bodies are also found in
fossils.
The fact that Trilobites are so widespread and diverse, and that
they evolved rapidly over time, often allows their use as
"index fossils" - that is to say that rocks can be dated
based on the particular type of Trilobites found within them.
During life, all Trilobites are believed to have been exclusively marine
organisms, although they do appear to have led many different lifestyles.
Trilobites lived in both shallow and deep water, and although most lived
in the seas, there is some evidence
(such as trace fossils) that some species may have been able to live in
freshwater.
Various different types of
Trilobites are believed to have been swimming plankton feeders,
predators, scavengers, and in some cases, to have even got their food
from symbiotic sulfur-eating bacteria.
One final interesting fact about Trilobites is that they are not thought to have been able to cross deep oceans.
Thus, the presence of two distinct types of Trilobites (as well two distinct types of
Graptolites) of
Trilobites in the rocks of Europe
and North America is suggestive that an ocean (known as the "Iapetus Ocean") once divided
the two continents.
The Iapetus Ocean is thought to have closed-up again when all the continents joined
together in the super-continent of Pangaea - when a new ocean (the Atlantic Ocean), separating
Europe and North America,
did subsequently form when Pangaea broke up, it did so along
a different line of separation.
Trilobites were arthropods that lived in the seas between 530 and 248 million years ago
Related Information & Resources
See Also
Trilobite 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 Andy Secher
Columbia University Press Released: January 23rd, 2024 Hardcover (472 pages)
| List Price: $59.95* Lowest New Price: $42.49* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: The Trilobite Collector's Guide- Manufacturer: Columbia University Press
- ISBN: 0231213808
- EAN: 9780231213806
- PartNumber: 9780231213806
Details:- Hardcover
- Number of Pages: 472
- Author: Andy Secher
- Publication Date: January 23rd, 2024
- Release Date: January 23rd, 2024
Physical Description:- Size: 11.5 inches by 9.0 inches by 1.25 inches
- Weight: 4.299014109 Pounds
Click here for more information |
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JIANEEXSQ Unknown Binding (0 pages)
| Lowest New Price: $18.99* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: JIANEEXSQ Real Trilobite Fossil from Hunan of China 450 Million Years Ago for Collections and Education- Manufacturer: LINGLONGSHIJI
- Brand: JIANEEXSQ
- Model: 00162021
- UPC: 768492004585
- EAN: 0768492004585
- PartNumber: 00162021
Details:- Product Category: Unknown Binding
- Number of Pages: 0
Features:- Feature: It is real, nature and authentic. Not fake or man-made.
- Size: It is variation 5cm - 8cm. Send by random.
- Note: Coz it is real fossil, each will be slightly different in shape, color, and size. Send by random.
- From: It is from the Hunan Province of China. Time: 450 million years ago silurian period.
- Gift: Memorable gift to friend, kids or family.
- Number of items: 1
Click here for more information |
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By Richard Fortey
Vintage Released: November 13th, 2001 Grey Paperback (320 pages)
| List Price: $19.00* Lowest New Price: $10.78* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Trilobite: Eyewitness to Evolution- Manufacturer: Knopf Doubleday Publishing Group
- Brand: Vintage
- ISBNs: 9780375706219, 0375706216
- EAN: 9780375706219
- PartNumber: 70341
Details:- Paperback
- Edition: First Edition
- Number of Pages: 320
- Author: Richard Fortey
- Publication Date: November 13th, 2001
- Release Date: November 13th, 2001
Physical Description:- Size: 8.0 inches by 5.1875 inches by 0.8 inches
- Weight: 0.6503636729 Pounds
- Color: Grey
Click here for more information |
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By Andy Secher
Columbia University Press Released: June 21st, 2022 Hardcover (416 pages)
| List Price: $39.95* Lowest New Price: $26.53* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Travels with Trilobites: Adventures in the Paleozoic- Manufacturer: Columbia University Press
- ISBN: 023120096X
- EAN: 9780231200967
- PartNumber: RP 00123900
Details:- Hardcover
- Number of Pages: 416
- Author: Andy Secher
- Publication Date: June 21st, 2022
- Release Date: June 21st, 2022
Physical Description:- Size: 11.0 inches by 8.75 inches by 1.25 inches
- Weight: 2.314853751 Pounds
Click here for more information |
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By Lola M. Schaefer
Richard C Owen Publishers Released: July 1st, 2001 Paperback (12 pages)
| Lowest Used Price: $5.90* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Trilobites (Books for Young Learners)- Manufacturer: Richard C Owen Pub
- Brand: Richard C Owen Publishers
- ISBN: 1572742593
- EAN: 9781572742598
Details:- Paperback
- Format: Picture Book
- Number of Pages: 12
- Author: Lola M. Schaefer
- Publication Date: July 1st, 2001
- Release Date: July 1st, 2001
Physical Description:- Size: 7.0 Inches by 7.75 inches by 1.25 inches
- Weight: 0.1 Pounds
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By Jonathan Fenske
Simon Spotlight Released: August 29th, 2023 Paperback (32 pages)
| List Price: $5.99* Lowest New Price: $4.69* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Try a Bite, Trilobite!: Ready-to-Read Level 1- Manufacturer: Simon Spotlight
- ISBN: 1665932651
- EAN: 9781665932653
- PartNumber: 9781665932653
Details:- Paperback
- Number of Pages: 32
- Author: Jonathan Fenske
- Publication Date: August 29th, 2023
- Release Date: August 29th, 2023
Physical Description:- Size: 9.0 inches by 6.0 inches by 0.1 inches
- Weight: 0.14 pounds
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By Jasper Burns
CREATESPACE Released: January 1st, 2000 Paperback (102 pages)
| Lowest New Price: $12.99* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Trilobites: Common Trilobites of North America (A NatureGuide Book)- Manufacturer: CreateSpace Independent Publishing Platform
- Brand: CREATESPACE
- ISBN: 1478357940
- EAN: 9781478357940
- PartNumber: black & white illustrations
Details:- Paperback
- Number of Pages: 102
- Author: Jasper Burns
- Publication Date: January 1st, 2000
- Release Date: January 1st, 2000
Physical Description:- Size: 8.5 inches by 5.5 inches by 0.23 inches
- Weight: 0.27998707274 Pounds
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By Steve Vanlandingham
White Dog Press Released: October 5th, 2017 Hardcover (52 pages)
| List Price: $19.95* Lowest New Price: $18.31* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Good Night, Trilobite- Manufacturer: White Dog Press
- Brand: White Dog Press
- ISBN: 1935684590
- EAN: 9781935684596
Details:- Hardcover
- Edition: First Edition
- Number of Pages: 52
- Author: Steve Vanlandingham
- Publication Date: October 5th, 2017
- Release Date: October 5th, 2017
Physical Description:- Size: 10.25 inches by 8.25 inches by 0.5 inches
- Weight: 1.19931470528 pounds
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By Ben Garrod
Zephyr Released: February 20th, 2024 Paperback (128 pages)
| List Price: $15.99* Lowest New Price: $11.55* In Stock* *(As of 08:48 Pacific 2 Nov 2024 More Info)
Click Here | Description: Trilobite (Extinct the Story of Life on Earth)- Manufacturer: Zephyr
- ISBN: 1838935339
- EAN: 9781838935337
Details:- Paperback
- Number of Pages: 128
- Author: Ben Garrod
- Publication Date: February 20th, 2024
- Release Date: February 20th, 2024
Physical Description:- Size: 8.45 inches by 6.0999878 inches by 0.35 inches
- Weight: 0.42328754304 Pounds
Click here for more information |
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