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Triarthrus is an upper-Ordovician trilobite found in New York State, eastern and northern Canada and Scandinavia. It is the last of the Olenid trilobites, which flourished in the Cambrian period. Triarthrus have been found in the Rome, New York area with soft body parts presevered in iron pyrite. This preservation has given scientists a rare opportunity to examine the gills, walking legs, antennae and digestive systems of trilobites, which are rarely preserved. Triarthrus is therefore commonly used in science texts to illustrate trilobite physiology.
[edit] References
- Brett, Carleton, et al, Trilobites of New York. Rochester: Rochester University Press, 2003.
