FOSSIL GROUPS

Fossils and Living Organisms

Fossils and Living Organisms

Introduction

Fossils are known as the remnants or map outs of the plants, animals and many other living organisms that are found out by the previous remote history. The entirety of the vestiges, identified and unrevealed both, and their position in the formation of rocks that contain fossil (also known as Fossiliferous rocks) and the sedimentary layers (Strata) is termed as the “Fossil Record”.

There are a number of explanations of early hours that dependent on mythologies or folk stories. In the country of China, the remnant bones of the very old mammals along with the “Homo Erectus” were over and over again erroneous for the bones of dragon and were utilised in aphrodisiacs and medicine. Aristotle, a scholar from Greece, recognized that the fossil sea-shells from the rocks were bordering on those that were discovered on seashore, pointing toward the fossil were the living organisms in some time ago. In the modern view, paleontology has stuck together with the evolutionary biology with the purpose of sharing the inter-disciplinary responsibility of demarcating the life tree that unavoidably directs rearwards in due course to Precambrian life of microscope when the structures and the functions of cells advanced. The deep time of earth in the proterozoic and still profound in the archean is just given an account by the infinitesimal vestiges and understated chemical indicators.

The experts of molecular biology, by means of Phylogenetics, are competent of comparing the nucleotide sequence homology or the protein amino acid (i.e., correspondence) to analyse the distance of evolution and taxonomy between the organisms, by way of inadequate confidence of statistics. The exploration of the fossils, then again, could further distinctively pin down what time and in which organism a transmutation took place for the first time. Paleontology and Phylogenetics collaborate in the explanation of the still not bright vision of science regarding the manifestation of the existence and its further progression.

Fossil and Living Organisms

Here, some organisms are explained that include;

Class Bivalvia

Name

Class Bivalvia (Molluscs)

Phylogenetic Position

Valves can be different shapes and sizes. After the shape, the valves can be echivalve or echilatere, where two perpendicular axes delimit four equal or approximately equal sectors and inechilatere inechivalve or, in case of two sectors delineated perpendicular axes are unequal. Morphologically, the valve is observed outside the upper prominent "umbonele" from the start grooves or ribs, usually without ornamentation (in bivalve valve ornamentation is much poorer compared to that of gastropods, however, may be present and in this group thorns, spines, tubercles, nipples, etc.). Behind umbonelui to observe many species of bivalve corneum structure, ligament, which keeps the valves united in the back.

Common Name

Common nae is “CLAMS”.

Geological Range

Like many species of bivalves, it is an organism bio-indicator of environmental quality. Cell cultures of bivalves are a precise and sensitive experimental model for evaluating the toxicity of chemicals.

Preservation Potential

It has moderate preservation potentials according to the studies.

Ecology and Habitat

In those waters, home of a pond, clam - mussel can be ...