Conway Formation
Geologic formation in New Zealand
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The Conway Formation, previously known as the Laidmore Formation, is a Campanian to Danian geologic formation in the South Island of New Zealand and therefore crosses the Cretaceous–Paleogene boundary. Plesiosaur remains are among the fossils that have been recovered from its strata. The Conway Formation is part of the Eyre Group and Haerenga Supergroup.
| Conway Formation | |
|---|---|
| Stratigraphic range: Campanian-Maastrichtian | |
| Type | Geological formation |
| Unit of | Eyre Group |
| Underlies | Loburn Mudstone |
| Overlies | Broken River Formation |
| Lithology | |
| Primary | Sandstone, siltstone |
| Location | |
| Coordinates | 42.6°S 173.5°E |
| Approximate paleocoordinates | 57.7°S 149.1°W |
| Region | Canterbury |
| Country | New Zealand |
| Extent | South Island |
.png)  Conway Formation (New Zealand) | |
Fossil content
Among others, the following fossils have been found in the formation:[1]
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Mosasaurs
| Mosasaurs of the Conway Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Prognathodon | P. waiparaensis | A prognathodontin mosasaurine | ||||
| Taniwhasaurus | T. oweni | A tylosaurine mosasaurid | ||||
Plesiosaurs
| Plesiosaurs of the Conway Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Alexandronectes | A. zealandiensis | A aristonectine elasmosaurid | ||||
| Mauisaurus | M. ?haasti | A elasmosaurid plesiosaur | ||||
Fish
Cartilaginous Fish
| Cartilaginous Fish of the Conway Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Australopristis[2] | A. wiffeni | A sawskate | ||||