Foto de stock - A fossil specimen of Myelodactylus fletcheri (Salter) dating back to the Silurian period (440 million years ago), discovered in Wenlock Limestone bed, Dudley, Worcestershire, UK.

Imagen: A fossil specimen of Myelodactylus fletcheri (Salter) dating back to the Silurian period (440 million years ago), discovered in Wenlock Limestone bed, Dudley.

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