clactonian造句

• There is a considerable quantity of Clactonian flint tools,
• The first remains are of Olduwan culture, later of Acheulean and Clactonian culture.
• Within the banks of the Nile River, at the 100 foot terrace, excavations located Egyptian version of Clactonian.
• The precise provenance of the few attributed bifacial Clactonian tools ( which point to Acheulean influence ) is in dispute.
• Proponents of the Clactonian as an independent industry point to the lack of concrete evidence in favour of it being an anomalous Acheulean industry.
• This warmer time period lasted from around 424, 000 until 374, 000 years ago and saw the Clactonian flint tool Swanscombe in Kent.
• These finds came from deposits connected with the Anglian Stage, the glaciation that preceded the Hoxnian Stage and therefore would have preceded the Clactonian.
• These are thought to date to the Cromerian Stage, which preceded the Anglian, and are of Chellean, Acheulian, Early Levalloisian and Clactonian types.
• It was thus preceded by the earlier Olduwan of Homo erectus, and the Upper Acheulian, of which Clactonian and Tayacian are considered phases, supplanted it.
• As a handaxe would have been more useful than a chopper in dismembering an elephant carcass it is considered strong evidence of the Clactonian being a separate industry.
• The earliest of these lithic industries were located within the 100-foot terrace, and were Chellean, primitive Acheulean and an Egyptian form of the Clactonian.
• The period has produced a rich and widespread distribution of sites by Palaeolithic standards, although uncertainty over the relationship between the Clactonian and Acheulean industries is still unresolved.
• However, the 2004 excavation of a butchered Pleistocene elephant at the Southfleet Road site of High Speed 1 in Kent recovered numerous Clactonian flint tools but no handaxes.
• It is described by the Kent county council archaeological service as a " Mousterian factory ", with a sequence through the Clactonian, Acheulian and Mousterian archaeological industries.
• The traditional chronology of Clactonian being followed by Acheulean is also being increasingly challenged since finds of Acheulean tools were made at Boxgrove in Sussex and High Lodge in Suffolk.
• Whether or not they are separate industries it would seem that the'Clactonian'and'Acheulean'stone tool makers would have had cultural contact with each other.
• The oldest human fossils in these islands also date from this time, including the skull of Swanscombe Man from 250, 000 years ago, and the earlier Clactonian Man.
• Conversely, some archaeologists have argued that some supposedly distinctive cultures are manifestations of a wider culture, but they show local differences based on environmental factors such as those related to Clactonian man.
• In Europe, the Olduwan tradition ( known in Europe as Abbevillian ) split into two parallel traditions, the Clactonian, a flake tradition, and the Acheulean, a hand-axe tradition.
• The oldest human fossils found to date in the British Isles, which include the skull of Swanscombe Man from 250, 000 years ago, and the earlier Clactonian Man, also date from this period.