Hekou Formation
Geology
Group: Guifeng
Members: unnamed (3)
Lithologies: not reported (2), sandstone (1)
Paleoenvironments: fluvial indet. (1), alluvial fan (2)
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Barremian - Aptian | China (Gansu) | (83513 214751) | |
Barremian - Aptian | China (Gansu) | (59255 59285 59286 84711 91464 154181 155994 219563 222584 224193 224350 224356 224375) | |
Barremian - Aptian | China (Jianxi) | (224369) | |
Maastrichtian | China (Jiangxi) | (171312 182609 220036 224481 226995 228656) | |
Maastrichtian | China (Zhanggong) | (232699) | |
Maastrichtian | China (Gansu) | (232698) |