Rhynchonellata - Orthida - Archaeorthidae
Parent taxon: Archaeorthidae according to A. Williams et al. 2007
See also Alikhova 1953, Mitchell 1977, Rubel 1961, Sepkoski 2002 and Williams et al. 2000
Sister taxa: Archaeorthis, Diplonorthis, Nicoloidea, Nothorthis, Pleurorthis, Riograndella, Xinanorthis
Subtaxa: Cyrtonotella grandistriata Cyrtonotella kuckersiana Cyrtonotella nicholsoni Cyrtonotella semicircularis Cyrtonotella subfissicosta Cyrtonotella virginiensis
Type: Cyrtonotella pakriensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Whiterockian of United States (2: Nevada collections)
• Valaste of Estonia (6), the Russian Federation (2)
• Langevoja of the Russian Federation (1)
• Hunderum of the Russian Federation (1)
• Arenig of Argentina (1)
• Ordovician of Belarus (3), Estonia (12), Latvia (4), Lithuania (5), the Russian Federation (10), Sweden (1), the United Kingdom (8), United States (3: Tennessee, Virginia)
Total: 59 collections including 60 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.