Sphaerexochus calvus Mc Coy 1846 (trilobite)

Trilobita - Phacopida - Cheiruridae

Synonyms: Sphaerexochus angustifrons Angelin 1854, Sphaerexochus latirugatus Reed 1896, Sphaerexochus mirus Beyrich 1845

Belongs to Sphaerexochus according to Mc Coy 1846

See also Ludvigsen 1979

Sister taxa: Sphaerexochus arenosis, Sphaerexochus arenosus, Sphaerexochus atacius, Sphaerexochus brandlyi, Sphaerexochus bridgei, Sphaerexochus britanicus, Sphaerexochus desertus, Sphaerexochus dimorphus, Sphaerexochus discrepans, 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, Sphaerometopus

Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Silurian of Canada (1: Northwest Territories collection), the Czech Republic (6), Ukraine (3), Uzbekistan (2)

• Ordovician of Ireland (1), Sweden (6), the United Kingdom (1)

Total: 20 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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