Hominid phylogeny, Biology

In the above sections we discussed in detail the fossil record of primates in general and more particularly those of apes and the humans. Despite the fact that in recent years a number of hominid fossils have been discovered, the fossil history of humans is not complete and the evidence is only fragmentary. Therefore, it has become necessary that based on the available evidence we need to synthesise an acceptable path of human ancestory. The hominid family had its origin from the dryopithecine ancestors. The fossil record suggests that genus Proconsul and Ramapithecus could be the near point of the origin of the family Hominidae. There is a cbnsehsus among the paleontologists and anthropologists at one time that Ramapithecus was the earliest recognisable horninid. But now evidence is available that Ramapithecus was more close to orangutans than to hominids. Late miocene and early plioene period were short of primate fossils. It is only during the late pliocene period the first

remarkable hominid Australopithecus afarensis (Lucy) appeared. The australopithecines were a separate side branch of the hominid evolution and have no survivors in the modern world. This means the genus Homo derives its ancestory from an australopithecine species whose fossils could not be found. This species probably gave rise to Homo habilis, and subsequently through Homo erectus to Homo sapiens.

There is also another viewpoint. The A. afarensis led to A. africanus which divided into two lineages: 1) to Australopithecus robustus and A. boisei which represented the termination of the australopithecine lineage. 2) the more progressive branch gave rise to Homo habilis to H. erectus and finally $0 H. sapiens.

Posted Date: 4/5/2013 3:35:09 AM | Location : United States







Related Discussions:- Hominid phylogeny, Assignment Help, Ask Question on Hominid phylogeny, Get Answer, Expert's Help, Hominid phylogeny Discussions

Write discussion on Hominid phylogeny
Your posts are moderated
Related Questions
Aspect of Tolerance and Dependence: Drug-abusers are said to be psychologically dependent upon certain drugs. Drugs also induce clear physical dependence in the chronic users.

Traumatology : This is the study of wounds. In other words we can say that traumatology  is the study of wounds or injuries which can be caused by accidents or violence to a person

Select the processes assist in the maintenance of high levels of dissolved solutes in the interstitial spaces of the kidney medulla? A. Net flux of sodium ions from intracellul

Pathophysiology of Acute Renal Failure It is usually reversible but the deviation of physiologic function can be extreme and mortality in pediatric age group remains high. Th

Reed-Swamp Stage - Hydrarch This stage is also known as amphibious stage, as the plants of the community are rooted but most parts of their shoots remain exposed to air. Speci

What are the types of evaluation of lateral earth forces acting on retaining structures? This section seeks to introduce you to the evaluation of lateral earth forces acting on

Forests, grasslands and wetland protect landscapes against erosion floods and landslides through the binding action of plant roots. The root systems of plants hold soils in place,

I have 30µg of a primer, whose molecular weight is 600. How much water should I add to get a stock primer concentration of 100µM?

Which term is used to describe an animal which limits its activity to periods of dim light at dawn and dusk? a) Diurnal (pron: die-ER-nal) b) Vesperal (pron: VESS-per-al)

What is the type of circulatory system present in arthropods? Do these animals have heart and respiratory pigments? In arthropods the respiratory system is open (lacunar). Blo