Rhynchonellata - Orthida - Orthidae
Alternative combination: Orthambonites robustus
Full reference: R. B. Neuman. 1964. Fossils in the Ordovician Tuffs Northeastern Maine, with a section on Trilobita by Harry B. Whittington. United States Geological Survey Bulletin 1181(E):1-38
Belongs to Paralenorthis according to V. Jaanusson and M. G. Bassett 1993
See also Neuman 1964
Sister taxa: Paralenorthis alabamensis, Paralenorthis alata, Paralenorthis buttsi, Paralenorthis carlottoi, Paralenorthis costata, Paralenorthis estenaensis, Paralenorthis immitatrix, Paralenorthis lolae, Paralenorthis luritjaorum, Paralenorthis marshalli, Paralenorthis minusculus, Paralenorthis mollesensis, Paralenorthis orbicularis, Paralenorthis panderania, Paralenorthis proava, Paralenorthis rgaitensis, Paralenorthis riojanus, Paralenorthis semnanensis, Paralenorthis serica, Paralenorthis suriensis
Distribution:
• Whiterockian of United States (1: Maine collection)
• Arenigian of United States (1: Maine)
• Arenig of Canada (1: New Brunswick)
• Ordovician of United States (4: Maine)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.