information about Tremadocian field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Lower ordovician 0 papers | |||
| Current | |||
Tremadocian papers | |||
| Child | |||
Clonograptus 0 papers | Fezouata formation 0 papers | Geragnostus 0 papers | Tetragraptus approximatus 0 papers |
Rhabdinopora 0 papers | Floian 0 papers | ||
Trends
Notes
History