The white carbonate sand from Raja Ampat, Indonesia, is generated by a vast diversity of organisms: e.g. foraminifera, coralline algae, sponges, brachiopods, echinoderms, bryozoa and mollusks. Diagonal of frame approx. 5 mmчитать дальше
Spines of Echinoderms, found in the sand from Raja Ampat, Inodesia, come in many colours and shapes. If they are well preserved they can be recognised by their typical rounded end that formed the flexible joint with the exo sceleton of the living animal. These spines come from sea urchins and brittle stars (Ophiuridae). Diagonal of frame approx. 5 mm
Two beauties of different kinds: the shells of the minute sea snail (Schwartziella ephamilla, top) and the wentletraps (Cycloscala hyalina, below) barely remained unbroken between the rough company of sand grains. Raja Ampat, Indonesien. Diagonal of frame approx. 2 mm
Spicules that once have had stabilising and predator deterring functions in sponges can frequently be found in the sand from Raja Ampat, Indonesia. Diagonal of frame approx. 4 mm
Fish tooth and parts of skeleton of brittle stars (Ophiuridae) from calcareous sand sample, Raja Ampat, Indonesia. Diagonal of frame approx. 5 mm
Spines from brittle stars (Ophiuroidea) from calcareous sand sample. Raja Ampat, Indonesia. Diagonal of frame approx. 4 mm</div>
@темы:
фото,
биоразнообразие,
рыбы,
иглокожие