Elongate sponges exposed in broken limestone layers |
Elongate sponges exposed in broken limestone layers (close-up) |
Cross-section of spherical sponge exposed in limestone |
Cross-section of spherical sponge (close-up) |
Cross-section of spherical sponge (close-up) |
Details of spherical sponge core (close-up) |
Details of spherical sponge core showing pores |
Exterior rind of spherical sponge |
Textures of interior surface of the exterior rind of a spherical sponge |
Elongate sponge exposed in limestone |
Cross-section of elongate sponge showing interior layers |
Interior layers of elongate sponge |
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Sponge showing external siphon pores |
Sponge showing external siphon pores (close-up) |
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Rather large spherical sponge (wide-brimmed hat for scale) |
Rather large spherical sponge |
Interior details of rather large spherical sponge |
Cross-section of spherical sponge |
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