Jehol Group
Geology
Formations: unnamed (2), Fuxin (7), Jiufotang (58), Qiaotou (1), Yixian (184)
Lithologies: not reported (53), "siliciclastic" (9), claystone (2), mudstone (122), "shale" (54), siltstone (14), sandstone (22), conglomerate (2), marl (1), coal (8), "volcaniclastic" (1), tuff (2)
Paleoenvironments: marine indet. (1), terrestrial indet. (50), fluvial indet. (5), alluvial fan (1), "floodplain" (1), fluvial-lacustrine indet. (6), lacustrine - large (119), lacustrine - small (2), lacustrine indet. (67)
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Aptian or 130.00000 to 122.46000 Ma
Collections