†family Biernatidae Holmer 1989 (lamp shell)

Lingulata - Acrotretida - Biernatidae

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

See also Williams et al. 2000

Sister taxa: Acrotretidina, Acrotretoidea, Angarella, Eleutherocrania, Ferralstreta, Maruia, Orbiculopora, Pseudometoptoma

Subtaxa: Biernatia Opsiconidion

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Devonian of the Czech Republic (2 collections), United States (1: Alaska)

• Silurian of Austria (2), the Czech Republic (1), the United Kingdom (4)

• Ordovician of Australia (5), Estonia (14), Iran (3), Norway (5), the Russian Federation (5), Sweden (25), United States (1: New York)

• Chazy of United States (1: Alabama)

Total: 69 collections including 76 occurrences

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