Trilobita - Phacopida - Pliomeridae
Full reference: R. J., J.r. Ross and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D:D1-D4
Belongs to Ectenonotus according to R. J., Jr. Ross and H. B. Barnes 1967
Sister taxa: Ectenonotus connemaricus, Ectenonotus marginatus, Ectenonotus progenitor, Ectenonotus raymondi, Ectenonotus westoni
Type specimen: USNM 145829, a pygidium. Its type locality is D 727 CO, which is in a Rangerian shallow subtidal limestone in the Antelope Valley Formation of Nevada.
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of United States (4: Nevada collections)
• Ordovician of United States (14: California, Nevada, Utah)
Total: 18 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.