Whatarangi Whale Bone Fossils

BY KLAYTON AMAI (VICTORIA UNIVERSITY)
Accessibility: EASY
Coastal erosion has undermined sections of Cape Palliser Road . K.Amai / VUW
Whalebone fossils which are 11 to 7 million years old! Also in the area, you can see active coastal erosion affecting the road and human attempts to reduce it.
View north along Whatarangi Beach. K.Amai / VUW
Here erosion has exposed fossils that have been washed down onto the shoreline from the blue-grey mudstone formation above. We know that the boulders containing whale bone fossils are not far from their origin (where they formed) because they are large and require a lot of energy to move. The fossils are well preserved and exposed in a number of the boulders along the beach. Attempts to reduce erosion of the coast here have included dumping many other large (non fossiliferous) boulders on the shore. These have buried some of the fossil material that used to be exposed. However there are still several examples visible if you are prepared to search a little.

These fossils are the result of deceased whales decomposing on the ocean floor at depth where there was little energy and mud was able to settle. Over time the mud covered the whale remains completely and left the bones in place to fossilise. The exact species of whale or whales is unknown and they may well now be extinct. As the southern Wairarapa coast has been lifted by tectonic uplift these remains have been exposed in the boulders that we see today.
Close up of a fossilised whale bone. K.Amai / VUW
From the location point on the map, make your way north and keep your eyes focused on each boulder as you go. If you take photos of any whale bones that you see, you could visit Te Papa Museum in Wellington at a later date and compare them with some of the skeletons on display.
Directions/Advisory

Follow Cape Palliser Road for approximately 15km, and pass Putangirua Pinnacles until you reach the cliffs of Whatarangi Bluff on your left. Shortly after you pass the cliffs there is space to park on the right, with easy access to the shore.

It is best to visit during low tide when more of the boulders are exposed.

Google Directions

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Accessibility: EASY

Walk north along the shore. The boulders with whale bones are scattered over a few hundred metres.

Features
Sedimentary Fossils Active Erosion
Geological Age
Age of boulders is between 11 and 7 million years old (Hurupi Formation)
Zealandia Evolution Sequence
Pākihi Supergoup: 5 million years ago – present