Spicules are structural elements found in most sponges. The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support...

to: Spicule (sponge), small skeletal elements of sea sponges Spicule (nematode), reproductive structures found in male nematodes (roundworms) Spicule (solar...

species have silica spicules, whereas some species have calcium carbonate exoskeletons. Calcareous sponges have calcium carbonate spicules and, in some species...

Hexactinellid sponges are sponges with a skeleton made of four- and/or six-pointed siliceous spicules, often referred to as glass sponges. They are usually...

The calcareous sponges (class Calcarea) are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made of calcium...

silicoflagellates, ebridians, phytoliths, some scolecodonts (worm jaws), and sponge spicules. Calcareous microfossils: Calcareous (CaCO3) microfossils include coccoliths...

invertebrates such as sponges also have evolved a form of endoskeletons made of diffuse meshworks of calcite/silica structural elements called spicules, and echinoderms...

This is a list of small shelly fossils of prehistoric marine animals, ordered by their type. Namacalathus Yochelsoniella Elements of a scleritome, resembling...

rays) may be differentiated into spicules with claw-like ends, serving as a means of attachment to the substrate the sponge is growing on. They commonly have...

gastropod shell small shelly fauna scaly-foot snail shell estuary shells Sponge spicule Test Endoskeletons (bones) Vertebrate skeleton Bone mineral Ossification...