Nok-related terracotta horizon (northern Nigerian ceramic sculpture complex)
A broadly defined cluster of regional terracotta-producing traditions across the Nigerian Middle Belt and north-west, sharing formal conventions with the Nok culture but comprising distinct local stylistic groups.
The term 'Nok-related terracotta horizon' describes a set of geographically and formally related ceramic sculpture traditions distributed across northern and central Nigeria — including the Nok, Katsina, Sokoto, and several other regional groupings — that share a cluster of sculptural conventions: pierced or modelled eye forms, cylindrical necks, relatively large head-to-body ratios, and comparable firing and clay-preparation technologies. The grouping is heuristic rather than culturally unified; it reflects the visible formal relationships between objects encountered on the market rather than a demonstrated shared cultural or social system. The Nok culture proper, the earliest and best-documented component, was first defined by Bernard Fagg through excavations from the 1940s onwards and has been substantially enriched by Peter Breunig's systematic Goethe University Nok Project.
The routine commercial conflation of all northern Nigerian terracottas as simply 'Nok' — a practice driven by the high market recognition of the Nok name — obscures meaningful cultural distinctions and has enabled a degree of provenance laundering, since pieces from heavily looted regions such as Katsina and Sokoto can be presented under a more prestigious and better-known label. Responsible cataloguing distinguishes between confirmed Nok pieces with documented Jos Plateau provenance, Katsina-region terracottas, Sokoto-region terracottas, and other regional subgroups, acknowledging the limits of attribution in the absence of excavation context.