Sphaerexochus valcourensis Shaw and Bolton 2011 (trilobite)

Trilobita - Phacopida - Cheiruridae

Full reference: F. C. Shaw and T. E. Bolton. 2011. Ordovician trilobites from the Romaine and Mingan Formations (Ibexian-Late Whiterockian), Mingan Islands, Quebec. Journal of Paleontology 85(3):406-441

Belongs to Sphaerexochus according to F. C. Shaw and T. E. Bolton 2011

Sister taxa: 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

Type specimen: NYSM 12417, a cephalon/head (cranidium)

Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Whiterockian of United States (16: New York, Vermont collections)

Total: 16 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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