Hyolitha - Orthothecida - Orthothecidae

Parent taxon: Orthothecidae according to D. W. Fisher 1962

See also Malinky 1990 and Sepkoski 2002

Sister taxa: Bactrotheca, Lenatheca, Lentitheca, Orthotheca, Quadrotheca, Trapezotheca

Subtaxa: none

Ecology: stationary epifaunal suspension feeder

Distribution: found only at ShNaYan Fm., NW of ShaJin and SuBei Counties, GanSu Prov., China (Ordovician of China)

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Specimen images are retrieved through the ePANDDA API.