Sphaeragnostus Cooper and Kindle 1936 (artiopod)

Artiopoda - Agnostida - Peronopsidae

Parent taxon: Peronopsidae according to P. A. Jell and J. M. Adrain 2002

See also Ahlberg 1989, Sepkoski 2002 and Whittington et al. 1997

Sister taxa: Archaeagnostus, Gratagnostus, Itagnostus, Micagnostus, Pentagnostus, Peronopseinae, Peronopsella, Peronopsis, Phalacrominae, Quadragnostus, Redeagnostus

Subtaxa: Sphaeragnostus cingulatus Sphaeragnostus gaspensis Sphaeragnostus similaris

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Type: Agnostus similaris

Ecology: nektonic suspension feeder

Distribution:

• Dobrotivian of Czechia (1 collection)

• Ordovician of Canada (2: Quebec), China (7), Czechia (1), Denmark (1), Poland (1), Sweden (3), the United Kingdom (3), United States (1: Maine)

Total: 20 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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