Pyrolusite on a pterosaur

All the photos I posted over the weekend here were via iPhone, and hence not particularly high-quality, despite their excellent geological content. Now I’ve downloaded the photos from my real camera, and have a few good ones to show. Here’s a succession of photos of the same specimen of Pterodactylus longirostrus, each progressively more zoomed in than the last. It’s a late Jurassic pterosaur (140 Ma) from the Solnhofen limestone of Germany.

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I mainly took these for the pyrolusite dendrites rather than the fossil itself…

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