| Katiki Formation | |
|---|---|
| Stratigraphic range: Campanian-Maastrichtian (Haumurian) ~ | |
| Type | Geological formation |
| Overlies | Herbert Formation |
| Thickness | 100 m (330 ft) |
| Lithology | |
| Primary | Siltstone |
| Location | |
| Coordinates | 45°30′S 170°48′E / 45.5°S 170.8°E |
| Approximate paleocoordinates | 60°18′S 153°30′E / 60.3°S 153.5°E |
| Region | South Island |
| Country | New Zealand |
| Type section | |
| Named by | McKay |
| Year defined | 1887 |
.png)  Katiki Formation (New Zealand) | |
The Katiki Formation is a Late Cretaceous (Campanian to Maastrichtian, or Haumurian in the regional stratigraphy) geologic formation of the South Island of New Zealand.[1] Plesiosaur remains of Kaiwhekea katiki, named after the formation, are among the fossils that have been recovered from the deltaic siltstones.