Back Creek Group

Geology

Formations: unnamed (49), Black Alley Shale (8), Colinlea Sandstone (1), Fair Hill (1), MacMillan (2), Peawaddy (2)

Lithologies: "siliciclastic" (38), mudstone (9), "shale" (9), sandstone (11), peat (1), "volcaniclastic" (1)

Paleoenvironments: marine indet. (20), marginal marine indet. (1), coastal indet. (27), offshore (2), fluvial indet. (1), mire/swamp (1), lacustrine indet. (9)

Age range: base of the Kungurian to the top of the Wuchiapingian or 279.30000 to 254.17000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Kungurian279.3 - 272.3Australia (Queensland) (83271 83272 83273 83276 83280 85857 85861 85862 85863 103038 103177 103226 103495 103553)
Kungurian - Capitanian279.3 - 259.51Australia (Queensland) (21070)
Capitanian264.28 - 259.51Australia (Queensland) (21023 21063 21078)
Capitanian - Longtanian264.28 - 254.0Australia (Queensland) (21077 21083 34820)
Wuchiapingian259.9 - 254.17Australia (Queensland) (83620 83216 83217 83218 83219 83265 83266 83267 83277 102921 102922 103031 103215 103224 103384 103385 103386 103387 103388 103389 103390 103391 103392 103486 103487 103488 103490 103548 104026 135933 135934 136656 136657 136661)
Longtanian259.0 - 254.0Australia (Queensland) (20990 20991 20994 20995 21009 21069 21088 21103 34819)