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A Pyraminx truncated into the shape of a concave tetrapod-like shape.
This is one member of Jürgen Brandt's series of shape variants. A series he presented in a video from 2003. The exact year of its creation is unknown but its video gives a lower bound. It is therefore one of the younger shape variants.
The shape resembles a tetrapod. The trivial tips were remomoved. The puzzle is therefore equivalent to a tetraminx.
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