Trilobita - Asaphida - Asaphidae
Alternative combinations: Asaphus obtusus, Homotelus obtusus, Isotelus obtusus
Full reference: J. Hall. 1847. Containing descriptions of the organic remains of the lower division of the New York system (equivalent of the Lower Silurian rocks of Europe). Paleontology of New York 1:1-338
Belongs to Vogdesia according to F. C. Shaw and T. E. Bolton 2011
See also Hall 1847, Raymond 1905, Raymond 1925 and Shaw 1968
Sister taxa: Vogdesia bearsi, Vogdesia bromidensis, Vogdesia gigas, Vogdesia minnesotensis, Vogdesia vigilans
Type specimen: NYSM 12538 (neotype), a cephalon/head (cranidium)
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Chazyan of United States (7: New York collections)
• Whiterockian of Canada (2: Quebec), United States (5: New York, Vermont)
• Ordovician of the Russian Federation (1)
Total: 15 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.