Polytoechia (lamp shell)

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

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of China (4 collections), Iran (3), United States (3: Arkansas, Maine)

• Llandeilo of China (1)

• Cassinian of United States (4: Arkansas, Missouri)

• Dawan of China (4)

• Arenig of China (8), Greenland (1)

• Canadian of United States (1: Maryland)

Total: 29 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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