Verkhnii Uslon Formation
85 distinct taxa, from 171 fossil occurrences the Paleobiology Database records under this name, spanning 274–264 Mya.
Tatarstan · RU
85 taxa · 171 fossils · 274–264 MyaFiled under the Kazan Group. Members recorded: Podluzhnik, Opoki.
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5 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
- Goniasma subangulata
- Baylea burtasorum
- Donaldina dubia
- Arribazona lata
- Anomphalus barskovi
- Araeonema tenuistriata
- Arribazona longispira
- Biarmeaspira jusupovi
- Biarmeaspira yakowlewi
- Goniasma multilineata
- Loxonema
- Naticopsis permica
- Arribazona kasanensis
- Biarmeaspira angulata
- Bulimorpha lavrskyi
- Eirlysia nodata
- Eirlysia undata
- Globodoma divesouralica
- Kazankiella volgensis
- Pseudomonotis
- Retispira chernyshevi
- Stutchburia
- Warthia fissus
- Baylea
- Baylea chimbulatiensis
- Baylea vjatkensis
- Cancrinella
- Eirlysia scalare
- Hemigordius
- Meekospira symmetrica
- Palaeostylus planoverticum
- Reteporidea
- Sokella subpenea
- Soleniscus girtyi
- Stephanozyga ornamentaria
- Streptacis subgracilis
- Stuckenbergispira kazanensis
- Ammodiscus
- Arribazona burovi
- Aulosteges wangenheimi
The 40 most often recorded, of 85.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.