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Dawsonia Hartt 1868 (trilobite)

Trilobita - Agnostida - Eodiscidae

PaleoDB taxon number: 19206

Synonym: Aculeodiscus Snajdr 1950 (taxon 103968)

Parent taxon: Eodiscidae according to H. B. Whittington et al. 1997

Sister taxa: Eodiscus, Helepagetia, Macannaia, Opsidiscus, Pagetia, Pagetides, Sinopagetia

Subtaxa: Dawsonia dawsoni

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Ecology: slow-moving nektonic suspension feeder