Sphaerexochus arenosus Chatterton and Ludvigsen 1976 (trilobite)

Trilobita - Phacopida - Cheiruridae

Full reference: B. D. E. Chatterton and R. Ludvigsen. 1976. Silicified Middle Ordovician trilobites from the South Nahanni River Area, District of Mackenzie, Canada. Palaeontographica Abteilung A 154(1-3):1-106

Belongs to Sphaerexochus according to B. D. E. Chatterton and R. Ludvigsen 1976

Sister taxa: Sphaerexochus arenosis, 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

Type specimen: GSC 43540, a cephalon/head

Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Ordovician of Canada (8: Northwest Territories collections)

Total: 8 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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