Mamlambo Fossils: Fossil crab prep at 10x speed!

I have had many requests to remove more of the rock from one of the crabs, I decided to do it with this specimen. Removing more of the rock does make it more fragile as will be seen in this video.

The species is Tumidocarcinus giganteus and it is mid-Miocene so around 12 million years old. A concretion is a natural cement that is formed by calcium carbonate around the crab possibly kickstarted by the decomposition process. The crab was probably buried by an underwater landslide caused by a earthquake, tsunami or some other geological event. You could tell there was a crab inside by the legs sticking out either side and also a part of the claw was visible. It hasn't been on the beach long as it hasn't been rolled around by the waves yet which would have damaged the legs that were sticking out a bit. These crabs lived in deep water, probably 200m or more, so would have lived in a dim, dark environment.

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