Artiopoda - Phacopida - Cheiruridae

Synonyms: Ceraurus (Eoceraurus) trapezoidalis Esker, III 1964, Ceraurus breviceps Cooper 1953, Ceraurus convexus Cooper 1953

Full reference: B. N. Cooper. 1953. Trilobites from the Lower Champlainian formations of the Appalachian Valley. Geological Society of America Memoir 55:1-69

Belongs to Ceraurus according to Cooper 1953

Sister taxa: Ceraurus (Pseudosphaerexochus), Ceraurus angustus, Ceraurus blussoni, Ceraurus gabrielsi, Ceraurus globulobatus, Ceraurus granulosus, Ceraurus hirsuitus, Ceraurus hudsoni, Ceraurus infrequens, Ceraurus intermedia, Ceraurus latifrons, Ceraurus mackenziensis, Ceraurus maewestoides, Ceraurus matranseris, Ceraurus milleranus, Ceraurus pleurexanthemus, Ceraurus serratus, Ceraurus tenuicornis, Ceraurus tuberosus, Ceraurus whittingtoni, Bufoceraurus bispinosus

Type specimens:

• Ceraurus ruidus: USNM 111783, a cephalon/head (cranidium)
• Ceraurus (Eoceraurus) trapezoidalis: OU 5197, an exoskeleton.
• Ceraurus breviceps: USNM 116470, a cephalon/head (cranidium).
• Ceraurus convexus: USNM 116467, a cephalon/head (cranidium).

Ecology: fast-moving low-level epifaunal carnivore

Distribution: found only at Bromide Formation, Pooleville Member Trilobites (Ordovician of Oklahoma)

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Specimen images are retrieved through the ePANDDA API.