Reef column - Rudist
Reef column - Rudist
Rudists were clams that formed reefs in the wave-beaten, shallow areas of the Cretaceous tropical seas, some 70 million years ago. Each had a massive, cone-shaped valve (shell), by which they were fixed to the ground, while the other valve functioned as a lid. Possibly they lived in a symbiotic relationship with unicellular algae, so that they were able to use sun-light as their source of energy. …
Autorius
- Europeana
Tema
- Reef, types of reefs, development of reefs, coral, sponge, mussels, brachiopods, see urchins, stromatolite
Autorius
- Europeana
Tema
- Reef, types of reefs, development of reefs, coral, sponge, mussels, brachiopods, see urchins, stromatolite
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- http://creativecommons.org/licenses/by-nc-nd/3.0/
- http://creativecommons.org/licenses/by-nc-nd/3.0/
Teisės
- Jura-Museum Eichstätt
- PRIVATE
Sukūrimo data
- 2013-06
Laiko
- Upper Cretaceous
Vietos
Apimtis
- 600 x 400 pixels
- 72.0 ppi
Formatas
- image/jpeg
Teikianti šalis
- Europe