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About: Triarthrus     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPrehistoricAnimalsOfNorthAmerica, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: animalyago:WikicatTrilobitesyago:WikicatOrdovicianTrilobitesyago:Animal100015388yago:Arthropod101767661yago:Invertebrate101905661yago:LivingThing100004258yago:Object100002684yago:Organism100004475yago:PhysicalEntity100001930yago:Trilobite101768244yago:Whole100003553yago:WikicatPrehistoricAnimalsOfNorthAmerica New Facet based on Instances of this Class

Triarthrus is a genus of Upper Ordovician ptychopariid trilobite found in New York, Ohio, Kentucky, and Indiana, eastern and northern Canada, China and Scandinavia. It is the last of the Olenid trilobites, a group which flourished in the Cambrian period. The specimens of T. eatoni that are found in the Beecher's Trilobite Bed, Rome, New York area are exquisitely preserved showing soft body parts in iron pyrite. Pyrite preservation has given scientists a rare opportunity to examine the gills, walking legs, antennae, digestive systems, and eggs of trilobites, which are rarely preserved. Triarthrus is therefore commonly used in science texts to illustrate trilobite anatomy and physiology.