Artiopoda - Agnostida - Metagnostidae
Alternative combination: Arthrorhachis elspethi
Full reference: P. E. Raymond. 1925. Some trilobites of the lower Middle Ordovician of eastern North America. Bulletin of the Museum of Comparative Zoölogy at Harvard College 67(1):1-180
Belongs to Trinodus according to B. N. Cooper 1953
See also Raymond 1925
Sister taxa: Trinodus agnostiformis, Trinodus clusus, Trinodus cylindricus, Trinodus jujuyensis, Trinodus saltaensis, Trinodus tardus
Type specimen: MCZ 1626 and 1627 (cotypes)
Ecology: slow-moving epifaunal detritivore
Distribution:
• Ordovician of the Russian Federation (1 collection), United States (7: Virginia)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.