Urban fossils of Pamplona
Ciudadela
Ezcaba - San Cristobal Stone
Location: walls
Rock: calcareous sandstone
Age: Middle Eocene
Fossils: ichnofossils
Remarks: Weathering makes these fossils face away. Therefore, they are more clearly seen on recently repaired sections or South-facing walls.
Ciudadela
Ezcaba - San Cristobal Stone
Location: walls
Rock: calcareous sandstone
Age: Middle Eocene
Fossils: ichnofossils
Remarks: Weathering makes these fossils face away. Therefore, they are more clearly seen on recently repaired sections or South-facing walls.
![Stacks Image 293](files/stacks-image-6ac3e2e.jpg)
![Stacks Image 19412](files/stacks-image-9acb948.jpg)
One of the gates of the fortress
![Stacks Image 19416](files/stacks-image-6647099.jpg)
Walls made of sandstone blocks
![Stacks Image 19426](files/stacks-image-0522a1c.jpg)
Blocks of calcareous sandstone
![Stacks Image 19476](files/stacks-image-41b2cfc.jpg)
Effect of weathering on the rock surface
![Stacks Image 19478](files/stacks-image-edda053.jpg)
Semicircular burrow
![Stacks Image 19480](files/stacks-image-2bd58e9.jpg)
Small burrow mould
![Stacks Image 19482](files/stacks-image-c46b89c.jpg)
Burrow mould
![Stacks Image 19484](files/stacks-image-c1e1054.jpg)
Group of burrows on the surface of the stone
![Stacks Image 19500](files/stacks-image-ec8610d.jpg)
Cluster of narrow burrows