Strophomenata - Billingsellida - Polytoechiidae
Parent taxon: Polytoechiidae according to A. Williams et al. 2000
See also Neuman 1964, Popov et al. 2009 and Sepkoski 2002
Sister taxa: Acanthotoechia, Admixtella, Antigonambonites, Asymphylotoechia, Eremotoechia, Martellia, Peritritoechia, Platytoechia, Protambonites, Raunites, Tritoechia
Subtaxa: Polytoechia inaequistriata Polytoechia subcircularis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Arenig of China (8 collections), Greenland (1)
• Dawan of China (4)
• Canadian of United States (1: Maryland)
• Ordovician of China (4), Iran (1), United States (7: Arkansas, Maine, Missouri)
• Tremadoc of China (1), Iran (2)
Total: 29 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.