Oligorthis (lamp shell)

Rhynchonellata - Orthida - Plectorthidae

Parent taxon: Plectorthidae according to A. Williams et al. 2000

See also Sepkoski 2002

Sister taxa: Apollonorthis, Ashinaorthis, Atlantida, Corineorthis, Desmorthis, Doleroides, Hebertella, Irhirea, Lipanorthis, Mimella, Nanorthis, Orthostrophiinae, Paterorthis, Platystrophiinae, Platystrophinae, Plectorthinae, Plectorthis, Pseudomimella, Schizophorella, Severginella

Subtaxa: Oligorthis arbucklensis

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of Australia (1 collection), China (1), United States (1: Oklahoma)

• Arenig of United States (1: Texas)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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