Bac Bun Formation
24 distinct taxa, from 34 fossil occurrences the Paleobiology Database records under this name, spanning 420–411 Mya.
Lang Son · VN
24 taxa · 34 fossils · 420–411 MyaMembers recorded: Lower, 2.
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4 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Cymostrophia (Cymostrophia) stephani
- Eospirifer
- Hysterolites
- Lingulella
- Orbiculoidea
- Strophomena (Strophodonta)
- Chonetes
- Chuchinolepis dongmoensis
- Favosites
- Favosites intricatus
- Heliolites
- Howellella
- Mucrospirifer
- Mytilarca (Plethomytilus) oviformis
- Protathyris
- Riphaeolites
- Squameofavosites
- Thamnopora
- Tongdzuylepis vietnamensis
- Turmalites
- Vanchienolepis langsonensis
- Youngolepis praecursor
- Yunnanolepis bacboensis
- Yunnanolepis deprati
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.