†family Quadrothecidae Malinky 2002

Hyolitha - Orthothecida - Quadrothecidae

Full reference: J. M. Malinky. 2002. A revision of early to mid Ordovician hyoliths from Sweden. Palaeontology 45(3):511-555

Parent taxon: Orthothecida according to J. M. Malinky 2002

Sister taxa: Aldanothecidae, Allathecidae, Ancheilotheca, Bolitheca, Brevitheca, Bucanotheca, Carinitheca, Chelsonella, Circothecidae, Cupitheca, Curtitheca, Ebianotheca, Eogloborilus, Girvanolithes, Gracilithecidae, Grandicornus, Hexitheca, Inflaticornus, Isititheca, Khetatheca, Kotuyitheca, Lophotheca, Minitheca, Mooritheca, Neobactrotheca, Nikatheca, Novitatidae, Orthothecidae, Panitheca, Paragloborilus, Petasotheca, Plicitheca, Probactrotheca, Protowenellidae, Renitheca, Semielliptotheca, Sysoievia, Tchuranitheca, Tetratheca, Tetrathecidae, Triplicatellidae, Turcutheca

Subtaxa: Quadrotheca

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Type: Quadrotheca

Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of Poland (1 collection), Sweden (1)

• Cambrian of China (1)

Total: 3 collections each including a single occurrence

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