Hesperonomia Ulrich and Cooper 1936 (lamp shell)

Rhynchonellata - Orthida - Hesperonomiidae

Parent taxon: Hesperonomiidae according to J. Hansen and L. E. Holmer 2011

See also Benedetto 2003, Sepkoski 2002 and Williams et al. 2000

Sister taxa: Hesperonomiella, Mollesella, Monorthis, Murjukiana, Protohesperonomia, Treioria, Zhanorthis

Subtaxa: Hesperonomia antelopensis Hesperonomia crassa Hesperonomia nemea Hesperonomia orientalis Hesperonomia planidorsalis Hesperonomia subtransversa Hesperonomia uzunbulakensis

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Type: Hesperonomia planidorsalis

Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of Canada (1: Alberta collection), China (2), France (1), Norway (1), United States (41: California, Idaho, Nevada, Utah)

• Whiterockian of United States (2: Utah)

• Cassinian of United States (8: Tennessee, Texas, Utah)

• Arenig of Argentina (5), China (7), France (1), the United Kingdom (2)

• Dawan of China (1)

• Arenigian of Argentina (1), United States (1: Utah)

• Canadian of Canada (4: Northwest Territories)

Total: 78 collections including 83 occurrences

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Specimen images are retrieved through the ePANDDA API.


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