Trilobita - Lichida - Damesellidae

Synonym: Dorypygella Walcott 1905

Parent taxon: Damesellidae according to S. Peng et al. 2004

Sister taxa: Ariaspis, Bergeronites, Blackwelderia, Blackwelderioides, Damesella, Damesops, Dipentaspis, Drepanura, Guancenshania, Haibowania, Meringaspis, Metashantungia, Palaeadotes, Parablackwelderia, Paradamesella, Protaitzehoia, Shantungia, Stephanocare, Taihangshaniashania, Taitzehoia

Subtaxa: Dorypygella hsihsienensis, Dorypygella jiangsuensis, Teinistion lansi, Teinistion liaoningensis, Teinistion posterocostum, Teinistion tangshihlingensis, Teinistion typicalis, Teinistion yangi

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Type: Teinistion lansi

Ecology: fast-moving low-level epifaunal carnivore