Fig. 1 in A new fossil provannid gastropod from Miocene hydrocarbon seep deposits, East Coast Basin, North Island, New Zealand

Fig. 1. Overview of relevant geology of the East Coast Basin, North Island, New Zealand, showing locations of the fossil seep deposits from which type specimens and a possible specimen of Provanna marshalli sp. nov. were collected. 1. Puketawa. 2. Rocky Knob. 3. Ugly Hill. CP, Cape Palliser; HSZ, Hikurangi subduction zone; M, Marlborough; TVZ, Taupo Volcanic Zone. Also shown are some of the modern offshore seeps on the Hikurangi margin, including Ritchie Ridge, from which several modern Provanna specimens have been reported. Inset shows the Hikurangi subduction zone as part of the transpressive boundary between the Indo−Australian and Pacific Plates. Figure modified from Campbell et al. (2008).