The Murihiku terrane is a volcano-sedimentary terrane of Late Permian to Early Cretaceous age that forms part of a collage of accreted terranes in the Eastern Province of New Zealand. These terranes record a history of deposition along the Gondwanaland margin, and include terranes of oceanic character (e.g. Brook Street terrane) and terranes dominated by continental detritus (e.g. Torlesse terrane). The Murihiku terrane is of particular interest because it is relatively large, one of the least structurally deformed terranes, and preserves a long (∼120 m.y) record of sedimentation. Previous studies have suggested that the Murihiku terrane preserves a record of change in provenance from predominantly mafic, juvenile sources to dominantly felsic volcanic sources in Middle to Late Triassic time interpreted as containing contributions from Precambrian continental crust, and modest amounts of detritus supplied directly from this old crust [Frost, C.D., Coombs, D.S., 1989. Nd isotope character of New Zealand sediments: Implications for terrane concepts and crustal evolution. American Journal of Science 289, 744–770.; Roser, B.P., Coombs, D.S., Korsch, R.J., Campbell, J.D., 2002. Whole-rock geochemical variations and evolution of the arc-derived Murihiku Terrane, New Zealand. Geological Magazine 139, 665-685.]. We present Nd isotopic data from a Late Triassic (Rhetian; Otapirian local stage; 200–206 Ma) roundstone cobble conglomerate from near Gore, South Island, New Zealand. The sandstone matrix of this conglomerate has an initial ɛ Nd of + 3.0 and Sm/Nd of 0.219, values that are intermediate between the more radiogenic Nd isotopic and higher Sm / Nd ratios of older Murihiku siltstones and less radiogenic, lower Sm / Nd, younger siltstones. Clasts within this matrix are mainly volcanic: we analyzed basaltic-andesite, andesite and dacite pebbles along with a volcanogenic sandstone pebble and hypabyssal quartz diorite clast. These pebbles have initial ɛ Nd between + 3.7 and + 2.6, and are probably derived from a Late Triassic volcanic arc. A felsic plutonic pebble with an initial ɛ Nd of − 0.5 and crustal residence age of 1.0 Ga may record erosion of Gondwanaland Proterozoic basement. A mudstone rip-up clast may be composed of fine-grained cratonic detritus; it has a Nd crustal residence age of 1.1 Ga. This conglomerate, containing both arc-derived and older cratonic-derived clasts, captures in a single sample the contribution of mafic arc, felsic arc and craton-derived sedimentary rocks to bulk sediment Nd budgets recorded in the Murihiku terrane.