Urban fossils of Madrid

Calle Valencia 14

Rojo Preño Stone
Location: lower part of the façade
Rock: limestone
Age: Cretaceous
Fossils: bivalves and gastropods

Limestone with ammonites
Location: upper part of the façade
Rock: limestone
Age: unknown
Fossils: ammonites

Source: Alberto and Raquel
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Rojo Ereño Stone

Close-up of the façade. The lower part is made of Rojo Ereño slabs, with bivalves and gastropods. The upper part of the façade is covered in a similar red limestone with ammonoids.

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Surface of Rojo Ereño Stone

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Accumulation of skeletal fragments

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Shells of nudists

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Detail of a nudist shell

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Longitudinal section of a gastropod shell

Limestone with ammonites
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Sección of an ammonoid shell

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Secction of ammonoid