This limestone skeleton on display at the Natural History Museum of Toulouse belongs to a marine animal called anthozoan - « animal-flower » in Greek. At a rate of a few millimeters per year, thousands of years were necessary for its growth, its development, since the fixing on a solid foundation - rock or limestone, of the larva conveyed by the plankton. Gathered in colonies, anthozoans form corals, polyps, or even islands - atolls in this case. Their limestone deposits cover 0.5% of the seabed and home nearly 25% of the marine species! In the space of 600 million years, anthozoans built the most extensive natural structures in the world, including the Great Barrier Reef in Australia. Their calcareous deposits, coupled with the skeletons of other marine invertebrates (crabs, etc.), also largely cover several continents: Asia, Europe, North America.
Information relating to this photography:
- Photographic conditions : Fuji X-E2 + Fujinon Lens XF 35mm F1.4 R - F/8 - 30 seconds - ISO 200
- Processing tools of the photography : RAW file converter EX powered by Silkypix 220.127.116.11 + GIMP 2.8.10
- Optimization of the display : 180 px/in + MozJPEG
Keywords : anthozoan, architects, Great Barrier Reef, Earth continents