Sherwood Sandstone Group

Geology

Formations: unnamed (1), Bromsgrove Sandstone (2), Chester Pebble Beds (4), Helsby Sandstone (1), Otter Sandstone (35), Scrabo Sandstone (1)

Lithologies: not reported (31), claystone (1), mudstone (1), sandstone (13), marl (1)

Paleoenvironments: terrestrial indet. (7), fluvial indet. (3), "channel" (1), dry floodplain (1), fluvial-lacustrine indet. (32)

Age range: base of the Olenekian to the top of the Late/Upper Triassic or 249.90000 to 201.40000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Triassic251.902 - 246.7United Kingdom (England) (184046 184047 184048)
Induan - Olenekian251.902 - 246.7United Kingdom (Northern Ireland) (197357)
Olenekian249.9 - 246.7United Kingdom (England) (184045)
Anisian246.7 - 241.464United Kingdom (England) (57944 88950 88951 88953 88954 88955 88956 88957 88959 88960 88961 88962 88963 88964 88965 88966 88968 88969 88970 88973 88974 88977 88978 88980 88981 88984 88989 88992 88993 88994 88995 88997 88998 88999 89000 89002 214637)
Middle Triassic246.7 - 237.0United Kingdom (England) (34402)
Late/Upper Triassic237.0 - 201.4United Kingdom (England) (174686)