Terebratulid fossils are common from the younger strata at Highfield Farm - especially from the Otapirian stage, which marks the end of the Triassic. The speciemns are typically small, somewhat worn and lacking in distinctive features, so identification to genus or species level is impossible. They are clearly members of the Teretrabulida order, however, in view of the nut-like form and generally smooth surface(see images above). Other Terebratulids contained in the collection are shown below.
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Further Reading: Marwick, J. 1953 Divisions and faunas of the Hokonui System (Triassic and Jurassic). Paleontological Bulletin 21, Wellington: New Zealand Geological Survey. Trechmann, C.T. 1917 The Trias of New Zealand. Quarterly Journal of the Geological Society 291, 165-246 (+10 plates). |