Edited by oilshale
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Triarthrus spinosus
Images: 
By Pseudogygites (edited)
Taxonomy
Triarthrus
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Ptychopariida
Family: Olenidae
Genus: Triarthrus
Species: Triarthrus spinosus
Author Citation Billings 1857
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Ordovician
Sub Period: None
Epoch: Late
Stratigraphy
Billings
Provenance
Collector: Graeme Hopkins
Date Collected: 11/20/2018
Acquired by: Field Collection
Location
Hurdman Station
Ottawa
Ontario
Canada
- billings formation
- billings shale
- canada
- north america
- ontario
- ottawa
- triarthrus
- triarthrus spinosus
- trilobite
- trilobites
Comments
Found associated with T. eatoni, T. rougensis, cephalopods, and graptolites. Impression of right genal spine is present. Right side of cephalon is slightly pyritized.
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