Mount Spann Formation
Geology
Age range: base of the Early/Lower Cambrian to the top of the Guzhangian or 538.80000 to 497.00000 Ma
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Cambrian | Antarctica | (154030) | |
Middle Cambrian | Antarctica | (154031) | |
Guzhangian | Antarctica | (154032) |