Sphaerexochus Beyrich 1845 (trilobite)

Trilobita - Phacopida - Cheiruridae

Alternative spelling: Spaerexochus

Parent taxon: Sphaerexochinae according to A. W. Owen 1981

See also Jell and Adrain 2002, Raymond 1916, Sepkoski 2002 and Warburg 1925

Sister taxon: Pseudosphaerexochus

Subtaxa: Sphaerexochus arenosis Sphaerexochus arenosus Sphaerexochus atacius Sphaerexochus brandlyi Sphaerexochus bridgei Sphaerexochus britanicus Sphaerexochus calvus Sphaerexochus dimorphus Sphaerexochus eurys Sphaerexochus fibrisulcatus Sphaerexochus glaber Sphaerexochus hapsidotus Sphaerexochus hiratai Sphaerexochus hisingeri Sphaerexochus johnstoni Sphaerexochus laciniatus Sphaerexochus latifrons Sphaerexochus molongloensis Sphaerexochus parvus Sphaerexochus planirachis Sphaerexochus pulcher Sphaerexochus romingeri Sphaerexochus scabridus Sphaerexochus tuberculatus Sphaerexochus valcourensis

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Type: Sphaerexochus mirus

Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Silurian of Australia (5 collections), Canada (19: Northwest Territories, Nunavut), the Czech Republic (12), Greenland (3), Japan (2), Sweden (15), Ukraine (3), United States (16: Arkansas, Illinois, Indiana, Oklahoma, Wisconsin)

• Niagaran of United States (1: Indiana)

• Ordovician of Australia (1), Belgium (1), Canada (28: Newfoundland, Northwest Territories, Quebec), China (12), Ireland (3), Kazakhstan (5), Norway (12), Sweden (11), the United Kingdom (7), United States (13: Virginia)

• Chazy of United States (12: New York)

• Llandeilo of the United Kingdom (2)

• Whiterockian of Canada (7: Quebec), United States (17: New York, Oklahoma, Vermont)

• Arenig of Sweden (1)

Total: 208 collections including 217 occurrences

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Specimen images are retrieved through the ePANDDA API.


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