#bone tool

[thesilicontribesman]

Iron Age Decorated Horse Bridle Fitting and Bone Toggle, Corinium Museum, Cirencester

[archaeologicalnews]

Homo erectus, not humans, may have invented the barbed bone point

A type of bone tool generally thought to have been invented by Stone Age humans got its start among hominids that lived hundreds of thousands of years before Homo sapiens evolved, a new study concludes.

A set of 52 previously excavated but little-studied animal bones from East Africa’s Olduvai Gorge includes the world’s oldest known barbed bone point, an implement probably crafted by now-extinct Homo erectus at least 800,000 years ago, researchers say. Made from a piece of a large animal’s rib, the artifact features three curved barbs and a carved tip, the team reports in the November Journal of Human Evolution.

Among the Olduvai bones, biological anthropologist Michael Pante of Colorado State University in Fort Collins and colleagues identified five other tools from more than 800,000 years ago as probable choppers, hammering tools or hammering platforms. Read more.

[eyesspies]

Some animations from animation camp!

[sciencenewsforstudents]

This 1.4-million-year-old hand ax adds to Homo erectus’ known toolkit

A newly described East African find, among the oldest bone tools found, shows the ancient hominids crafted a range of simple and more complex tools.

Homo erectus, a possible direct ancestor of people today, crafted a surprisingly cutting-edge tool out of a hippo’s leg bone around 1.4 million years ago, researchers say.

This find is a rare example of an ancient type of hand ax made out of bone rather than stone, reports a team led by paleoanthropologists Katsuhiro Sano of Tohoku University in Sendai, Japan, and Gen Suwa of the University of Tokyo. The tool was discovered at Ethiopia’s Konso-Gardula site (SN: 1/2/93), which has produced stone tools and fossils attributed to H. erectus.

Along with a variety of stone tools now recognized at several East African sites (SN: 3/4/20), the bone hand ax “suggests that Homo erectus technology was more sophisticated and versatile than we had thought,” Suwa says. Taken together, these finds show that, perhaps several hundred thousand years earlier than previously known, the H. erectus toolkit consisted of items requiring a series of precise operations to manufacture, such as stone and bone hand axes, as well as simpler tools that could be made relatively quickly.

H. erectus at Konso-Gardula modified a chunk of a hippo’s leg bone so that a roughly 13-centimeter-long oval piece with a sharp edge near the tip could be struck off in one blow from a stone or bone hammer, the researchers conclude July 13 in the Proceedings of the National Academy of Sciences. One or more toolmakers then chipped off bone from the artifact to render its final shape. Signs of wear indicate that the hand ax was used in cutting or sawing activities.

Only one other bone hand ax of comparable age has been found. That roughly 1.3- to 1.6-million-year-old implement, from Tanzania’s Olduvai Gorge, contains fewer signs of chipping and shaping than the Konso-Gardula hand ax does, the scientists say.

[sheeprints]

I made my own bone folders in Jim Croft’s workshop.

[spettelt]

My first try out using the “bone” Tool rigging system in Flash. Might need some improvement but this is to see the difference between Flash and Toon Boom.

[jagheterpiwa]

Cheating?

Waaaaa...! I've just discovered the bone deformation tool in Toon Boom Harmony!! I feel like I am on anabola steroids or something. Animating is now so simple I question if it is okay doing like this. It feels like I am cheating. Right now I don't care.

[uk-fossils]

The Real ‘Southend Rock’

The Real ‘Southend Rock’

Chert and flint are crystalline (perhaps more accurately described as microcrystalline) forms of rock that man has made use of from Stone Age times. The crystals consist of a microcrystalline form of silica, more commonly known as quartz (silicon dioxide). Flint is the better-known form of this substance and is commonly found as very hard concretions in deposits of chalk. It is so hard that, when…

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