Calymene niagarensis

Taxobox
name = "Calymene niagarensis"
fossil_range = Middle Silurian


image_width = 240px
image_caption =
regnum = Animalia
phylum = Arthropoda
classis = Trilobita
ordo = Phacopida
subordo = Calymenina
familia = Calymenidae
genus = "Calymene"
species = "C. niagarensis"
binomial = "Calymene niagarensis"

"Calymene niagarensis" is a small species of trilobite. It datesback to the Middle Silurian. Most specimens have been found in New Yorkand Oklahoma. It has around 20 body segments and small, round eyes.