Barrow Group
Geology
Formations: unnamed (1), Birdrong Sandstone (2)
Lithologies: not reported (6), "siliciclastic" (1), claystone (9), mudstone (2), "shale" (4), sandstone (2), marl (6), lime mudstone (3), wackestone (1), "limestone" (13)
Paleoenvironments: marine indet. (6), terrestrial indet. (10), carbonate indet. (2), peritidal (2), lagoonal/restricted shallow subtidal (4), marginal marine indet. (4), lagoonal (4), fluvial indet. (1), wet floodplain (1), fluvial-lacustrine indet. (2), lacustrine - large (1), lacustrine - small (1)
Age range: base of the Early/Lower Pliensbachian to the top of the Bartonian or 189.60000 to 38.00000 Ma
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Pliensbachian | United Kingdom (England) | (139701 176440) | |
Early/Lower Berriasian | United Kingdom (England) | (104006 104007 118914 123428) | |
Early/Lower Berriasian - Middle Berriasian | United Kingdom (England) | (28401 28995 55495 55496 55497 90711 90713) | |
Middle Berriasian | United Kingdom (England) | (28994 45330 52254 52299 52312 55499 55534 72142 90712 94224 94225 123452 118383 118951 118953 122769 123573 138440 153648 160652 176070) | |
Berriasian | Australia (Western Australia) | (110534) | |
Late/Upper Hauterivian - Late/Upper Barremian | Australia (Western Australia) | (169140) | |
Hauterivian - Barremian | Australia (Western Australia) | (55309) | |
Bartonian | United Kingdom (England) | (39014) |