Lujiatun Member
Geology
Group: Jehol
Formation: Yixian
Lithologies: not reported (4), "siliciclastic" (1), mudstone (3), sandstone (2), "volcaniclastic" (1), tuff (3)
Paleoenvironments: terrestrial indet. (4), fluvial indet. (4), fluvial-lacustrine indet. (5), lacustrine - small (1)
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Aptian or 130.00000 to 122.46000 Ma