Rhynchonellata - Orthida - Hesperorthidae
Alternative combination: Orthis tricenaria
Belongs to Hesperorthis according to M. Liljeroth et al. 2017
See also Bassett and Cocks 1974, Jakobsen et al. 2014, Jin and Chatterton 1997, Jin and Zhan 2008, Rubel 2011 and Walcott 1884
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 pyramidalis, Hesperorthis rae, Hesperorthis sulcata
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Canada (14: Manitoba, Newfoundland, Ontario collections), the Russian Federation (1), United States (61: Georgia, Illinois, Iowa, Kentucky, Michigan, Minnesota, Missouri, Pennsylvania, Tennessee, Virginia, Wisconsin)
Total: 76 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.