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Mesolithic - Coggle Diagram

- - - - Structure 273
        
        8319-8240 cal BC, 8302-8328 cal BC
        
        Apparently structure reused 1000 years later in 7350-7050 cal BC
        
        Pits contained large amounts of burnt lithics, charred hazelnuts, burnt clay/daub, hearth sweepings, sealed by charcoal-rich silty layer
        
        Sunken-floored oval structure 6.96m x 5.92m x 0.55m, postholes 0.3m to 0.7m diameter,
      - Oval Structure 519
        
        Ring of postholes 2.95 x 2.1m, posts 0.18 to 0.40m dia
        
        8421–8233 cal BC
      - Ring groove structure 283
        
        group of inter-cutting curvilinear ditches, between 0.51m and 0.90m wide and between 0.27m and 0.08m deep, two post-holes and a small pit
        
        8418–8251 cal BC
      - Northern pit arc
        
        ranged in size from 0.27m to 1.86m in length and 0.04m to 0.71m in depth, charred hazelnuts & burnt animal bone
        
        8454–8276 cal BC
    - - Oval structure 1280 & pits
        
        oval 4.7m x 3m, posts 0.45m dia, gully 5m x 0.39m x 0.19m nearby
        
        Group of pits dated to 6825–6603 cal BC, significant lithics
      - Pit group, largest one 1.5m x 1m x 0.55m, oak charcoal 5294-5048 cal BC
      - Central pits (3) up to 2m dia, 8 postholes c. 0.5m dia, fuel ash slag in one feature suggests use as hearth
      - Western hearths & structure 1179
        
        Earliest 4584–4372 cal BC 2m x 0.8m x 0.4m
        
        2nd hearth 4652–4452 cal BC, 1m dia 0.15m depth
        
        Structure 4.2m x 3.3m formed of 12 postholes up to 0.3m dia
  - - - Flints, spear-heads and mammal remains have been dredged from the area known as the
      - Dogger Bank, though the vast relict lagoon that was present to the south between 8,000-
      - 7,000 BP may provide a richer assemblage
  - - - Sited approximately 11km off the coast of Great Yarmouth, 75 Palaeolithic artefacts were
      - recovered from Area 240 which include hand axes, flakes and cores, and a series of bones
      - (including woolly mammoth, bison and reindeer). The finds were recovered from sediments
      - deposited in an outer estuary or restricted shallow marine environment, which are probably
      - associated with a buried channel feature. The area is offshore of early terrestrial sites of
      - Pakefield and Happisburgh, and palaeographic and palaeoecological reconstructions aligned
      - with archaeological evidence suggest the potential for further finds of prehistoric material.