Wessex Formation

Geology

Group: Wealden

Members: unnamed (69), Sudmoor Point Sandstone (2)

Lithologies: not reported (21), claystone (19), mudstone (12), siltstone (3), sandstone (18), conglomerate (6), marl (7)

Paleoenvironments: marine indet. (2), terrestrial indet. (43), coastal indet. (1), fluvial indet. (9), alluvial fan (1), coarse channel fill (1), wet floodplain (1), "floodplain" (2), crevasse splay (10), pond (1)

Age range: base of the Late/Upper Berriasian to the top of the Late/Upper Barremian or 145.00000 to 125.45000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Berriasian145.0 - 140.2United Kingdom (England) (53891)
Late/Upper Berriasian - Barremian145.0 - 125.0United Kingdom (England) (32369 32699 32700)
Late/Upper Berriasian - Aptian145.0 - 113.0United Kingdom (England) (222390)
Late/Upper Hauterivian136.4 - 130.0United Kingdom (England) (232052)
Late/Upper Hauterivian - Early/Lower Barremian136.4 - 125.45United Kingdom (England) (26783 26797 45918 47190 48328 53886 53888 55518 59353 60377 64774 64775 64776 72289 72290 77057 82521 83057 83058 83059 83060 157614 222381 232068)
Hauterivian - Barremian132.9 - 125.0United Kingdom (England) (52576 227657)
Early/Lower Barremian130.0 - 125.45United Kingdom (230407)
Late/Upper Barremian130.0 - 125.45United Kingdom (England) (26791 26799 46875 154774)
Barremian129.4 - 125.0United Kingdom (Isle of Wight) (225020)
Barremian129.4 - 125.0United Kingdom (England) (48853 59350 60845 90213 90307 90308 90342 96817 101088 101090 101091 101092 101093 105331 118213 122894 122895 122896 122898 127533 157299 168797 222371 223358 223359 223868 223869 223870 227655 227656 230379 232067)
Barremian - Early/Lower Aptian129.4 - 122.46United Kingdom (England) (101087)