Science & Technology - Posted by Futurity-Jenny Leonard on Tuesday, March 10, 2009 12:31 - 1 Comment    
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Ancient footprints look surprisingly modern

footprint

In the foreground, Christine Galvagna, a Rutgers undergraduate at the time, meticulously cleans a trail of hominid footprints as Professor John W.K. Harris (dark blue shirt) looks on. (Credit: David Braun )

footprint

In the foreground, Christine Galvagna, a Rutgers undergraduate at the time, meticulously cleans a trail of hominid footprints as Professor John W.K. Harris (dark blue shirt) looks on. (Credit: David Braun )





RUTGERS (US)—Human footprints found in Kenya suggest that some of the earliest humans walked like us and did so on anatomically modern feet.

The footprints were found in two 1.5 million-year-old sedimentary layers near Ileret in northern Kenya.  The Ileret footprints constitute the oldest evidence of an essentially modern human-like foot anatomy, according to analysis by John W.K. Harris, professor of anthropology at Rutgers University, and lead study author Matthew Bennett of Bournemouth University in the United Kingdom. These rarest of impressions have revealed information about soft tissue form and structure not normally accessible in fossilized bones.

Harris directs Rutgers’ Koobi Fora Field Project in Kenya. From 2006 to 2008, the field school group of mostly American undergraduates, including Rutgers students, excavated the site that yielded the footprints.

The upper sediment layer contained three footprint trails: two trails of two prints each, one of seven prints, and a number of isolated prints. Five meters deeper, the other sediment surface preserved one trail of two prints and a single isolated smaller print, probably from a juvenile.

In these specimens, the big toe is parallel to the other toes, unlike that of apes where it is separated in a grasping configuration useful in the trees. The footprints show a pronounced human-like arch and short toes, typically associated with an upright bipedal stance. The size, spacing, and depth of the impressions were the basis of estimates of weight, stride, and gait, all found to be within the range of modern humans.

Based on size of the footprints and their modern anatomical characteristics, the researchers attribute the prints to the hominid Homo ergaster, or early Homo erectus as it is more generally known. This was the first hominid to have had the same body proportions (longer legs and shorter arms) as modern Homo sapiens. Various H. ergaster or H. erectus remains have been found in Tanzania, Ethiopia, Kenya, and South Africa, at dates consistent with the Ileret footprints.

Other hominid fossil footprints dating to 3.6 million years ago had been discovered in 1978 by Mary Leakey at Laetoli, Tanzania. These are attributed to the less advanced Australopithecus afarensis, a possible ancestral hominid. The smaller, older Laetoli prints show indications of upright bipedal posture but possess a shallower arch and a more ape-like, divergent big toe.

Rutgers University news: http://news.rutgers.edu/medrel/research-highlights

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Dr BHUDIA Kutch Science
Sep 3, 2010 8:08

Hominid BONE FOSSILS in Kutch‏, and fossilised river bed ripples can be used to work out the direction of ancient river flows‏.

Dear EDITORIALS, Friends of the Science, History, palaeontology and Geology,

Recent interest of geologists to investigate the origin of life and human origin in Kutch: After long discussions (see below attached mail contents) and with a joint expeditions with experience retired palaeontologists, some geologist are convinced to do further research in this matter that KUTCH is not only a JURASSIC time land but also existed well before in the pre Jurassic time as well. As well as Human origin can be traced back to 4-5 million years back in Kutch.

Dr Sringarpure, a retired palaeontologist when visited Kutch in 2007 and joined me to expedition in Khatrod Hill range. He also desired to visit Hominid foot print area and Fossilised River areas in Gangeshwar dome region. BUT time was not permitting and dark is not worth attempting as day light is essential for such study expeditions. During his last visit to Kutch he expressed his desire for further investigation in this matter again.

Rivers of Kutch: – We believe that ancient rivers of Kutch are what we see them to days. But in reality it is not the Fact. Those rivers are formed later when main land of Kutch was come out of the waters of the sea. But there are some older rivers of the main land of the KUTCH which are fossilised after the main land of the KUTCH has gone down the water of sea.

The direction of fossilised river bed ripples can be used to work out the direction of ancient river flows. Dating can be done through stratigraphy and analysis of zircon fission tracks. Seismic sensing allows probing of the crust. Direct measurement of the amount of folding tells us whether compression alone can explain the uplift of the Hills of the Gangeshwar dome area.

River was flowing from north to south to wards the Arabic sea from the North plains of Khatrod Hill range to the south – when there was no KHATROD hill formation (pre Jurassic) and was sea water south of the Khatrod region in the PRE JURASSIC times. (This geological time study for KUTCH has not been done before as it was believed that Kutch did not exist before pre Jurassic times as Cambrian fossils are not abundant in Kutch) Else, why the fossilised river flow was indicative of river flow to south is found layers below JURASSIC marine fossils?

Upper layers are holding clues of Jurassic sea fossils and also Decomposed LAND wood fossils, suggesting that after a Jurassic period again Land of Kutch Has gone down to sea water and what we sea today is the Latest land of dome came out of the sea after Jurassic time. (MANY wood fossils have been collected and Plenty are in abundance in hills of Kharod)

Chronological process of Prints on mud of that river bank are also fossilised:

During the water flow (present fossilised River of Gangeshwar) river bank of river side was Muddy and prints on the Mud are preserved in mud, dried and hardened. Dried river bed ripples are also dried and hardened. Later Covered with dust and sand and river area has gone down the sea water with tectonic activity. Further sedimentary layers are deposited.

With the further tectonic activity Land came out of the sea waters and formed the new hill range. As weathering effect superficial younger soft layers have been washed away and old hardened fossilised layers become bare to visible.

As further weathering effects parts of exposed layer which are pressed hard with pressure of creature walks, Had compact granules and more harder than the rest of the part, And well preserved AGAINST these weather effects and soft feeling dust layers – softly packed fossilised feeling of such prints are washed earlier to expose clear views of exposed prints of creature’s foot prints. And many a times we sea a honeycomb appearance and weathering effect of fossilised layers.

Hominid Foot prints found in older layers may have been formed later in the geological process but the study of Photomicrographs and infrared photography is required so that to eliminate that there were no signs of carving or artificial markings in or around the prints. A study of microscopic count of sand grains is also required so indicating that the material within the prints had been impacted, and created as the result of a force pressing down on the firmament while it was soft.

These facts show that the prints were made by the natural result of pressure from the human foot, and in no way could have been duplicated by carving nor only the phenomena of honeycomb appearance as the study of Photomicrographs and infrared photography can differentiate the compact sand particles under the pressure points which are not in honeycomb pattern appearance.

Many geologists and palaeontologists do visit with curiosity of the specimen and the subject but have no background of study of Photomicrographs and infrared photography and its geological/paleontological applications so do not have any clue or chance to study those subjects in that angle of research. Unfortunately lack of recourses and facility for such a research.

Other fossil layers: Land has become a vegetative land and trees and forest has grown in the area. Land has gone down to sea water again and as a result we get sea water animal fossils of different young age time.

Phase Two Fossils: Burroughs Conjecture

The most cogent explanation of anomalous fossil footprints is perhaps offered by Dr. William Greely Burroughs, of Berea College in Kentucky. Dr. Burroughs conjecture is that a depression in fossil-bearing rock may, long after the original fossils have been formed, be filled with a sediment that in its turn may also become the medium in which the impression of a footprint or the body of a creature is fossilized. When this second period of fossilization is complete the newly formed rock may be indistinguishable from the older formation, and the new fossils may appear to have formed at the same time as those which are much older. Thus, several fossilization processes may wind up looking like a footprint made at the same time. This is undoubtedly the case in many instances, but the theory is lacking in several respects. Firstly, fossilized human footprints have been found deep within rocks that show no evidence of discontinuous formation, not just at the junction of sedimentary layers. Secondly, out of place fossils are often inconsistent not only with the ages of associated fossils but also with the rock strata and the age conventionally ascribed to them.

HUMAN BONE FOSSILS and differentiation from rest of animal kingdom bone fossils: – We have sample fossil of part of the of Human Ulna bone. But that’s not sufficient to claim the Human evolution in Kutch. We need to make sufficient research for the differentiations of fossilised bones of hominid and animals (Apes). We need to search more and particularly for skull or face bones, to come to conclusion of Hominid evolution in Kutch.

By yours Dr.BHUDIA-Science Group Of INDIA .
President:’ Kutch Science Foundation’.
Founder :’ Kutch Amateurs Astronomers Club – Bhuj – Kutch ‘.
Life Member:’kutch Itihaas Parishad’.

http://in.groups.yahoo.com/group/scienceclubofindia
http://in.groups.yahoo.com/group/kutchscience
http://in.groups.yahoo.com/group/kachchh
http://in.groups.yahoo.com/group/bhuj

Do visit our ABOVE Clubs/Groups of Science club of India, Science Group of India & KUTCH science foundation and ALSO JOIN US.

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