Around 248–205 million years ago, during the Triassic, New Zealand was largely a marine environment and the sea was full of invertebrates and reptiles. Clockwise from top left: the gastropod Pleurotomaria hectori (200 million years ago [Ma]); ammonoid Rhacophyllites debilis (215 Ma); a bivalve mollusc, Monotis richmondiana (210 Ma); a lampshell or brachiopod, Alipunctifera kaihikuana (235 Ma); rubber casts of ichthyosaur teeth from specimens held in Otago Museum (215 Ma); and a lampshell or brachiopod, Clavigera tumida (200 Ma).
These fossils are part of the GNS Science National Paleontological Collection.
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Photograph by Alastair McLean
Permission of GNS Science must be obtained before any use of this image.