Twin Falls Formation
24 distinct taxa, from 50 fossil occurrences the Paleobiology Database records under this name, spanning 382–372 Mya.
Northwest Territories · CA
24 taxa · 50 fossils · 382–372 MyaMembers recorded: upper, Upper, Alexandra.
Macrostrat places this rock in the Grumbler Group, and dates it 377–375 Ma. Macrostrat’s own record
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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
- Phillipsastrea
- Peneckiella
- Tabulophyllum
- Hexagonaria
- Macgeea
- Temnophyllum
- Disphyllum
- Hunanophrentis
- Piceaphyllum
- Smithiphyllum
- Smithiphyllum cygnus
- Smithiphyllum imbulliferum
- Thamnophyllum
- Actinostroma
- Charactophyllum
- Clathrocoilona
- Fedorowskicyathus
- Ferestromatopora parksi
- Hammatostroma albertense
- Phillipsastrea irregularis
- Smithiphyllum adnatum
- Smithiphyllum meridianum
- Stromatopora
- Trupetostroma hayense
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.