Rocks

Fossil Report only(a) and compound Coral Solitary chromatic atomic number 18 in the Phylum phylum Coelenterata and the build Anthozoa. They can be somewhat large in size and usually a coned manakin structure that is given up to the sea floor. This animal takes calcium carbonate from the surrounding wee and uses it to make the exoskeleton. As it grows, filaments ex ladder by for food. Feeding is through by percolateing prey and filtering the water for little material. As they grow they make new, larger separate to their skeleton which argon called growth lines and can be seen on the side of the fossil. Colonial coral is only solitary coral but littler and be in large aggroups. Bryozoans Bryozoans are in the Phylum Bryozoa. They are colonial marine animals and are organised into branching colonies that resemble plants. Even though they resemble the colonial corals they can be differentiated between because bryozoans are a lot smaller than the individ ual colonial coral. Also, bryozoans do not puzzle septa in which colonial corals do. Bivalves Bivalves are in the Phylum Mollusca and the Class Bivalvia. Bivalves are as abundant today as they were in the past. severally half of the shell is known as a valve and since this group has to, hence the name bivalve.

Bivalves are differentiated from former(a) molluscs because of their laterally pixilated body enclosed between 2 valves which are held to catch up withher by an elastic ligament. In around cases it is bilaterally symmetric and the plane of symmetry is the hinge making severally side almost a perf ect reflect photograph of the other. ! Gastropods Gastropods are in the Phylym Mollusca and the Class Gastropoda. Gastropods (or snails) are long-familiar to all and an important to the marine, freshwater, and land ecosystems. Due to the buoying effect, oceanic snails tend to have heavier shells than those on land. Their most distinguishing feature is the wind of their intimate organs. It is believed that the coiling of snails has developed over time...If you want to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper