Rhynchonellata - Orthida - Hesperorthidae
Ugh: someone effed up this entry badly!
Full reference: W. H. Twenhofel. 1928. Geology of Anticosti Island. Geological Survey of Canada Memoir 154(2132):1-351
Belongs to Hesperorthis according to J. Jin and R. B. Blodgett 2020
Sister taxa: Hesperorthis antelopensis, Hesperorthis australis, Hesperorthis avalanchensis, Hesperorthis barbata, Hesperorthis benjaminensis, Hesperorthis biconvexa, Hesperorthis costalis, Hesperorthis craigensis, Hesperorthis davidsoni, Hesperorthis dubia, Hesperorthis gotlandica, Hesperorthis hillistensis, Hesperorthis ignicula, Hesperorthis latecostata, Hesperorthis laurentina, Hesperorthis leinsterensis, Hesperorthis longirostroides, Hesperorthis martinssoni, Hesperorthis matutina, Hesperorthis mucronata, Hesperorthis onniensis, Hesperorthis rae, Hesperorthis sulcata, Hesperorthis tricenaria
Type specimen: YPM 10419, a shell
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Canada (5: Northwest Territories, Quebec collections), United States (3: Alaska, Wyoming)
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.