Jehol Group

Geology

Formations: unnamed (2), Chaomidianzi (1), Fuxin (7), Huajiying (1), Jiufotang (59), Jiufutang (1), Qiaotou (1), Yixian (120)

Lithologies: not reported (52), "siliciclastic" (7), claystone (2), mudstone (71), "shale" (47), siltstone (14), sandstone (22), conglomerate (2), marl (1), coal (8), tuff (2)

Paleoenvironments: marine indet. (1), terrestrial indet. (48), fluvial indet. (5), alluvial fan (1), "floodplain" (1), fluvial-lacustrine indet. (6), lacustrine - large (59), lacustrine - small (2), lacustrine indet. (69)

Age range: base of the Valanginian to the top of the Early/Lower Aptian or 139.80000 to 122.46000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Jurassic - Barremian163.5 - 125.0China (Hebei) (96195)
Berriasian - Barremian145.0 - 125.0China (Liaoning) (79657)
Valanginian139.8 - 132.9China (Inner Mongolia) (199759)
Valanginian - Hauterivian139.8 - 129.4China (Liaoning) (133789)
Hauterivian - Aptian132.9 - 113.0China (Liaoning) (66923)
Late/Upper Barremian - Early/Lower Aptian130.0 - 122.46China (Hebei) (68022)
Late/Upper Barremian - Early/Lower Aptian130.0 - 122.46China (Liaoning) (10764 24899 25835 50467 50469 50468 50470 52888 55425 55682 55683 55709 73438 85298 87417 92626 94660 94819 100540 132600 137803 158243 196649)
Late/Upper Barremian - Early/Lower Aptian130.0 - 122.46China (Nei Mongol) (92651)
Barremian129.4 - 125.0China (Hebei) (155011)
Barremian129.4 - 125.0China (Liaoning) (13937 91199 115407)
Barremian - Early/Lower Aptian129.4 - 122.46China (Nei Mongol) (91404)
Barremian - Early/Lower Aptian129.4 - 122.46China (Hebei) (82758)
Barremian - Early/Lower Aptian129.4 - 122.46China (Liaoning) (10761 49106 79488 79521 79522 92749 92806 92903 92908 117526 117527 117528 137794 156032 179655)
Barremian - Aptian129.4 - 113.0China (Nei Mongol) (79519 203213)
Barremian - Aptian129.4 - 113.0China (Liaoning) (101022 126447 126448 127186)
Barremian - Aptian129.4 - 113.0China (Hebei) (79520 116134)
Early/Lower Aptian125.45 - 122.46China (Liaoning) (36969 53493 55685 67611 73376 75472 75511 82783 83249 85288 92147 106315 111717 112344 115646 117536 118207 123444 123753 132934 134420 137886 140491 145247 146277 147071 147827 151535 156389 156531 159020 163269 164497 166710 194296 197954)
Early/Lower Aptian125.45 - 122.46China (Hebei) (106355 117452 117535 118996 155157 159021 160777 187587)
Early/Lower Aptian125.45 - 122.46China (Nei Mongol) (68047 103654 106346 106347 117608 125655 125656 127184 133005 150366 154967 155049 156009 164498 173105 195760)
Early/Lower Aptian125.45 - 122.46China (Jilin) (155010 172382)
Aptian125.0 - 113.0China (Nei Monggol) (123445 152245 179126)
Aptian125.0 - 113.0China (Hebei) (60460 60461 155158 155162 155163)
Aptian125.0 - 113.0China (Liaoning) (92906 36970 52458 52459 52460 52461 54003 55426 55536 55708 60459 73687 73688 78922 79517 79518 79523 79941 85255 85258 85262 85285 90046 92073 92652 92898 92905 98449 105248 105772 109245 116136 116361 117415 129475 131831 132487 135798 136747 137591 139555 142343 150275 150814 151525 151534 151536 151537 151538 153809 156387 160135 165516 167348 169930 173109 194604)
Aptian - Albian125.0 - 100.5China (Liaoning) (97422 97423 97424 97425 97426 123517)