†family Obolellidae Walcott and Schuchert 1908 (lamp shell)

Obolellata - Obolellida - Obolellidae

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

See also Cooper 1976 and Geyer 1994

Sister taxon: Trematobolidae

Subtaxa: Bicia Brevipelta Ivshinella Magnicanalis Obolella

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Type: Obolella

Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of United States (1: Nevada collection)

• Cambrian of Canada (3: Newfoundland and Labrador), China (1), Greenland (10), India (1), Kazakhstan (2), Morocco (6), Norway (2), the Russian Federation (5), Svalbard and Jan Mayen (1), Sweden (7), United States (14: California, Maryland, Massachusetts, Nevada, New York)

Total: 53 collections including 64 occurrences

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