Lower Greensand Group

Geology

Formations: unnamed (25), Atherfield Clay (25), Faringdon Sand (1), Ferruginous Sands (29), Folkestone (40), Hythe (18), Monk’s Bay Sandstone (3), Munday’s Hill Phosphatic Sandstone (1), Sandgate (18), Sandrock (1), Woburn Sand (4)

Lithologies: not reported (27), "siliciclastic" (2), claystone (2), "shale" (36), sandstone (86), "limestone" (6), "carbonate" (7), chert (5), ironstone (7)

Paleoenvironments: marine indet. (134), terrestrial indet. (7), shallow subtidal indet. (1), open shallow subtidal (1), reef, buildup or bioherm (1), marginal marine indet. (3), coastal indet. (14)

Age range: base of the Early/Lower Aptian to the top of the Late/Upper Albian or 121.40000 to 100.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Jurassic - Early/Lower Cretaceous201.4 - 100.5United Kingdom (England) (241438)
Early/Lower Aptian121.4 - 119.57United Kingdom (England) (32371 36581 45882 52568 77923 77924 77948 77950 77951 77952 77953 77955 77956 118954 137420 167728 182914 213122 226223 227798 241433 241434)
Aptian121.4 - 113.2United Kingdom (170925)
Aptian121.4 - 113.2United Kingdom (England) (1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1767 1768 1769 1770 1772 1773 1774 1775 1776 1777 1778 1779 1780 1811 1813 1814 1815 1817 1819 1820 1821 1822 1823 1825 1835 1836 1837 1838 1839 1840 1841 1842 1843 1849 1850 1851 1854 1855 1856 1857 1859 1860 1866 1867 1870 86973 86974 90683 90691 171804 240552 240553)
Aptian - Early/Lower Albian121.4 - 110.1United Kingdom (England) (52263 146643)
Late/Upper Aptian119.57 - 113.2United Kingdom (England) (58095 59354 77925 77944 77945 77946 146642 153852 162252 162287 162289 162290 214300 232865 241435 241436 241437 241458)
Late/Upper Aptian119.57 - 113.2United Kingdom (153847 153848)
Early/Lower Albian - Aptian113.2 - 113.2United Kingdom (153849)
Early/Lower Albian113.2 - 110.1United Kingdom (Kent) (165955 211495)
Early/Lower Albian113.2 - 110.1United Kingdom (England) (1782 1783 1785 1812 1818 1826 1827 1833 1834 1846 1847 1848 1853 1861 1862 1863 1864 1869 56357 77922 77949 77957 171805)
Albian113.2 - 100.5United Kingdom (England) (1771 1781 1816 1824 1828 1829 1830 1831 1832 1844 1845 1852 1865 86977 227836)
Middle Albian110.1 - 106.3United Kingdom (England) (1765 1766)
Late/Upper Albian106.3 - 100.5United Kingdom (England) (53952 153916 154026)