Diorthelasma parvum Cooper 1956 (lamp shell)

Rhynchonellata - Orthida - Draboviidae

Full reference: G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245

Belongs to Diorthelasma according to Y. Candela and D. A. T. Harper 2014

See also Cooper 1956, Rasmussen et al. 2012 and Williams 1962

Sister taxa: Diorthelasma semotum, Diorthelasma weissi

Type specimen: USNM 117322a, a shell

Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of United States (1: Alaska collection)

• Chazy of United States (1: Alabama)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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