Triarthrus

Translingual

Triarthrus eatoni.

Etymology

tri- (“three”) +‎ Ancient Greek ᾰ̓́ρθρον (árthron, “joint”) +‎ -us m.

Proper noun

Triarthrus m

1. A taxonomic genus within the family Olenidae – certain extinct ptychopariid trilobites.

See also

• Triarthrus on Wikipedia.Wikipedia
• Triarthrus on Wikispecies.Wikispecies
• Triarthrus on Wikimedia Commons.Wikimedia Commons