Acheulean

of, relating to, or typical of a Lower Paleolithic culture of the middle Pleistocene Epoch, characterized by large hand axes and cleavers made by the soft hammer technique.
Historical Examples

This proves that in Acheulean times this valley was already deepened to the same degree as it is to-day.
Men of the Old Stone Age Henry Fairfield Osborn

It is only in late Acheulean times that human burial rites or interments begin and that skeletal remains are found.
Men of the Old Stone Age Henry Fairfield Osborn

The ‘loess’ conditions of climate seem to be coincident with the earliest Acheulean stations in Germany, such as Sablon.
Men of the Old Stone Age Henry Fairfield Osborn

Only in rare instances, as at Castillo, were the Acheulean hearths brought within the entrance line of the grotto.
Men of the Old Stone Age Henry Fairfield Osborn

At the very same time the Acheulean flint workers along the Somme may have enjoyed a more genial climate.
Men of the Old Stone Age Henry Fairfield Osborn

These deposits are believed to correspond with the period of Chellean and early Acheulean industry.
Men of the Old Stone Age Henry Fairfield Osborn

The successive stages of the Mousterian industry have not as yet been so clearly defined as those of the Acheulean (Schmidt).
Men of the Old Stone Age Henry Fairfield Osborn

The Chellean and the following Acheulean industry was carried on here on a very extensive scale.
Men of the Old Stone Age Henry Fairfield Osborn

Thus far the region of the middle Rhine and of Westphalia has not shown any evidence of Acheulean culture.
Men of the Old Stone Age Henry Fairfield Osborn

Here lingered the straight-tusked elephant and Merck’s rhinoceros, contemporary with the workers of the Acheulean flints.
Men of the Old Stone Age Henry Fairfield Osborn

Acheulian also Acheulean
(ə-sh’lē-ən)
Relating to a stage of tool culture of the Lower Paleolithic Period, dating from around 1.5 million to 150,000 years ago, characterized especially by flaked bifacial hand axes, cleavers, and other core tools. The earliest Acheulian tools have been found at African sites associated with Homo erectus fossils. Later examples have been found at numerous sites in the Middle East, Europe, and western and southern Asia.