Yanjiahe Formation

Geology

Members: unnamed (26)

Lithologies: "shale" (16), "limestone" (15), dolomite (10), chert (1), phosphorite (1)

Paleoenvironments: carbonate indet. (1), shallow subtidal indet. (1), open shallow subtidal (7), deep subtidal shelf (3), offshore indet. (14)

Age range: base of the Meishucunian to the top of the Tommotian or 530.70000 to 521.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Fortunian538.8 - 529.0China (Hubei) (278000)
Nemakit-Daldynian538.8 - 525.5China (Hubei) (85503 97556)
Nemakit-Daldynian - Tommotian538.8 - 521.0China (Hubei) (155448 155462 155463 155464 155465 155466 155467)
Meishucunian530.7 - 521.0China (Hubei) (106524 106525 155446 155468 155469 155470 155471 155472 155473 155474)
Tommotian525.5 - 521.0China (Hubei) (155441 155442 155443 155444 155445 155447)