Trilobite
- Agnostida
- Redlichiida
- Corynexochida
- Lichida
- Phacopida
- Proetida
- Asaphida
- Harpetida
- Ptychopariida
- Proposed order
- Nektaspida
Trilobites are extinct arthropods in the class Trilobita. They appeared in the Cambrian era and flourished throughout the lower Palaeozoic before slowly declining to extinction. The last of the trilobites disappeared in the mass extinction at the end of the Permian 250 million years ago. Trilobites are well-known, possibly the second most famous fossil group after the dinosaurs, and are the most diverse group of animal species preserved in the fossil record, consisting of eight, possibly nine, orders and over 15,000 species. Most were simple, small marine animals that filtered mud to obtain food.
Related Topics:
Arthropod - Class - Cambrian - Palaeozoic - Mass extinction - Permian - Dinosaur - Fossil
~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ Table of Content ~
| ► | Introduction |
| ► | Physical description |
| ► | Sensory organs |
| ► | Development |
| ► | Terminology |
| ► | Extinction |
| ► | Fossil distribution |
| ► | References |
| ► | See also |
~ What's Hot ~
Alvin And The Chipmunks The Squeakquel, The Time Traveler S Wife, The Princess And The Frog, Fantastic Mr Fox, The Ugly Truth, The Mummy 4 Rise Of The Aztec, Cedar Boys, Ninja Assassin, New Moon, My Sister S Keeper, Madagascar 3, Twilight, Hannah Montana The Movie, 500 Days Of Summer, The Blind Side, The Boondock Saints Ii All Saints Day, Sorority Row, The Goods Live Hard Sell Hard, Dear John, Avatar,
~ Community ~
| ► | History Forum Come and discuss about History, Civilizations, Historical Events and Figures |
| ► | History Web-Ring A community of sites, blogs and forums dedicated to History. Do not hesitate to submit your site. |
and are licensed under the GNU Free Documentation License.
Lexicon - Privacy Policy - Spiritus-Temporis.com ©2005.