claim: Zac Efron's full name is Zac David Alexander Efron.
evidence: The Dunwich Group is a Palaeogene to Quaternary lithostratigraphic group -LRB- a sequence of rock strata or other definable geological units -RRB- present in England north of the upper Thames and , downstream , a line drawn east from near Marlow to Clacton-on-Sea and which encompasses river terrace deposits of the Proto-Thames and other rivers .. Group. Group ( stratigraphy ). England. England. Palaeogene. Palaeogene. Quaternary. Quaternary. lithostratigraphic. lithostratigraphy. group. group ( stratigraphy ). rock strata. rock strata. Thames. River Thames. Marlow. Marlow, Buckinghamshire. Clacton-on-Sea. Clacton-on-Sea. river terrace. river terrace. Proto-Thames. River Thames#Geological and topographic history. It unconformably overlies Triassic to Pleistocene bedrock and superficial deposits .. Pleistocene. Pleistocene. unconformably overlies. unconformity. Triassic. Triassic. In turn it is often overlain by deposits of the Albion Glacigenic Group and sometimes by those of the Britannia Catchments Group or British Coastal Deposits Group and interfingers in places with those of the Crag Group .. Group. Group ( stratigraphy ). Albion Glacigenic Group. Albion Glacigenic Group. Britannia Catchments Group. Britannia Catchments Group. British Coastal Deposits Group. British Coastal Deposits Group. Crag Group. Crag Group. No deposits potentially assignable to the group have been identified north of East Anglia or the English Midlands ; they are likely to have been destroyed or removed by glacial action .. East Anglia. East Anglia. English Midlands. English Midlands. group. group ( stratigraphy )