†family Clavagnostidae Howell 1937 (artiopod)

Artiopoda - Agnostida - Clavagnostidae

Parent taxon: Condylopygoidea according to E. B. Naimark and T. V. Pegel 2017

See also Hong et al. 2003 and Whittington et al. 1997

Sister taxa: Agnostidae, Ammagnostidae, Condylopygidae, Diplagnostidae, Doryagnostidae, Glaberagnostus, Glyptagnostus, Leiagnostus, Megagnostus, Metagnostidae, Phalacromidae, Phalagnostus, Phaldagnostus, Pseudagnostidae, Ptychagnostidae, Spinagnostidae, Valenagnostus

Subtaxa: Aspidagnostinae Clavagnostinae Triadaspis Utagnostinae Utagnostus

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Type: Clavagnostus

Ecology: slow-moving epifaunal detritivore

Distribution:

• Ayusokkanian of Kazakhstan (20 collections), the Russian Federation (1)

• Marjumian of United States (2: Alabama, Utah)

• Cambrian of Antarctica (1), Argentina (1), Australia (2), Canada (4: Newfoundland and Labrador, Yukon), China (48), India (3), Kazakhstan (9), North Korea (1), the Russian Federation (2), South Korea (1), United States (6: Nevada, Utah)

Total: 101 collections including 135 occurrences

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