The oldest hominid fossils ever discovered in Tanzania also come from Laetoli and are the 3. 6 to 3. 8 million year old remains of Australopithecus afarensis — Louis Leakey had found what he thought was a baboon tooth at Laetoli in 1935 ( which was not identified as afarensis until 1979 ), a fragment of hominid jaw with three teeth was found there by Kohl-Larsen in 1938 – 39, and in 1974 – 75 Mary Leakey recovered 42 teeth and several jawbones from the site.

It was here, at the Laetoli site, that she discovered Hominin fossils that were more than 3. 75 million-years-old.

From 1976 to 1981 Leakey and her staff worked to uncover the Laetoli hominid footprint trail which was left in volcanic ashes some 3. 6 million years ago.

A following excavation in 1959 revealed no new hominids, and the site was relatively unexplored until 1974 — when the discovery of a hominid premolar by George Dove renewed interest in Laetoli.

Before the discovery of the footprints found at Laetoli there was much debate as to what developed first in the evolutionary time line: a larger brain or bipedalism.

Pliocene sediments at Laetoli show that the environment in which the footprint impressions were found was moister and more productive than now.

Tuttle was enlisted by Mary Leakey to analyze the 3. 4 million-year-old footprints she discovered in Laetoli, Tanzania.

At nearby Laetoli the oldest known hominid footprints, the Laetoli footprints, were discovered by Mary Leakey in 1978, and estimated to be about 3. 6 million years old and probably made by Australopithecus afarensis.

Important human trace fossils are the Laetoli ( Tanzania ) footprints, imprinted in volcanic ash 3. 7 Ma ( million years ago ) -- probably by an early Australopithecus.

“ The Laetoli Footprints ” received significant recognition by the public, providing convincing evidence of bipedalism in Pliocene hominids based on analysis of the impressions.

In 1978, the discovery of hominid tracks —“ The Laetoli Footprints ”— by Mary Leakey gained significant recognition by both scientists and laymen, providing convincing evidence of bipedalism in Pliocene hominids.

* July-Fossil hominid footprints found at Laetoli, Tanzania, by Mary Leakey.

* Discoveries at Laetoli in northern Tanzania ( 1981 ) Leakey http :// www. sciencedirect. com. proxy. lib. umich. edu / science? _ob = MiamiImageURL & _cid = 277817 & _user = 99318 & _pii = S0016787881800089 & _check = y & _origin = gateway & _coverDate = 31-Dec-1981 & view = c & wchp = dGLzVlV-zSkzk & md5 = a7cf44a39140aef5bc4fd70507388848 / 1-s2. 0-S0016787881800089-main. pdf

Although much debated upon, it has been determined that Australopithecus afarensis is the species of the three hominins who made the footprints at Laetoli.

Leakey and her team of these footprints therefore settled the issue proving that the hominids found at Laetoli were fully bipedal before the evolution of the modern human brain, and were even bipedal close to a million years before the earliest stone tools .< ref > Agnew, Neville and Demas, Martha.

* Mary D. Leakey and J. M. Harris ( eds ), Laetoli: a Pliocene site in Northern Tanzania ( Oxford, Clarendon Press 1987 ).

* Richard L. Hay and Mary D. Leakey, " Fossil footprints of Laetoli.

* Leakey, M. D. and Hay, R. L .-Pliocene footprints in the Laetolil Beds at Laetoli, northern Tanzania-Nature

* The Laetoli Footprints ( 1996 ) Agnew, Demas, Leakey http :// www. jstor. org. proxy. lib. umich. edu / stable / pdfplus / 2890795. pdf? acceptTC = true

The earliest evidence of fundamentally bipedal hominids can be observed at the site of Laetoli in Tanzania.

It is located 45 km from the Laetoli archaeological site.

Despite Laetoli being the type locality for A. afarensis, the most extensive remains assigned to the species are found in Hadar, Afar Region of Ethiopia, including the above-mentioned " Lucy " partial skeleton and the " First Family " found at the AL 333 locality.

She also discovered the Laetoli footprints.

After Mary's husband died, she continued her work at Olduvai and Laetoli.

The years that followed this discovery were filled with research at Olduvai and Laetoli, the follow-up work to discoveries and preparing publications.

The site of the Laetoli footprints is located 45 km south of Olduvai gorge.

But her prettiness was what he had noticed first, and all the other things had come afterward: cruelty, meanness, self-will.

There was an artificial lake just out of sight in the first stand of trees, fed by a half dozen springs that popped out of the ground above the hillside orchard.

The first part of the road was steep, but it leveled off after the second bend and curled gradually into the valley.

No one was behind it, but in the rear wall of the office I noticed, for the first time, a door which had been left partially open.

The herd was watered and then thrown onto a broad grass flat which was to be the first night's bedground.

Once again, Tom Horn was the first and most likely suspect, and he was brought in for questioning immediately.

For Matilda, it was the first she had known in many a night.

Even the knowledge that she was losing another boy, as a mother always does when a marriage is made, did not prevent her from having the first carefree, dreamless sleep that she had known since they dropped down the canyon and into Bear Valley, way, way back there when they were crossing those other mountains.

Stevens was grunting over the last empty pocket when Russ abruptly rose and lunged toward Carmer's hat, which had tumbled half-a-dozen feet away when he first fell.

The Indian's arm whipped sidewise -- there was a flash of amber and froth, the crash of the bottle shattering against the side of the first car.

It was her first smile.

At first, I thought he was out of his head, talking wildly like this.

Hell, I gave him the first decent job he ever had, six, seven -- how many years ago was it, Rob ''??

Miss Langford ( her first name was Evelyn ) was an attractive girl.

School began in August, the hottest part of the year, and for the first few days Miss Langford was very lenient with the children, letting them play a lot and the new ones sort of get acquainted with one another.

It was just as well that the ignorant Dandy enjoyed himself to the hilt that first evening, for the room was to become his prison cell.

`` Bastards '', he would say, `` all I did was put a beat to that Vivaldi stuff, and the first chair clobbered me ''!!

In 1961 the first important legislative victory of the Kennedy Administration came when the principle of national responsibility for local economic distress won out over a `` state's-responsibility '' proposal -- provision was made for payment for unemployment relief by nation-wide taxation rather than by a levy only on those states afflicted with manpower surplus.

The first systematic thinking about this Pandora's box within Pandora's boxes was done four years ago by Fred Ikle, a frail, meek-mannered Swiss-born sociologist.

The smell at first was more surprising than unpleasant.

His collaboration with Washington, begun when he was the general's aide during the Revolution, was resumed when he entered the first Cabinet as Secretary of the Treasury.