Simonstone Limestone IVa Cyclothem Formation
29 distinct taxa, from 34 fossil occurrences the Paleobiology Database records under this name, spanning 336–330 Mya.
England · UK
29 taxa · 34 fossils · 336–330 MyaFiled under the Middle Limestone Group.
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1 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
- Aviculopecten
- Chonetes
- Eomarginifera
- Allotropiophyllum
- Aulophyllum
- Cleiothyridina
- Conocardium inflatum
- Dielasma virgoides
- Echinoconchus elegans
- Echinoconchus punctatus
- Euomphalus catillus
- Euphemites urei
- Fenestrellina
- Fluctuaria undata
- Fusella
- Gigantoproductus
- Hustedia
- Lithostrotion
- Lithostrotion junceum
- Martinia decora
- Nuculana
- Orbiculoidea nitida
- Penniretepora
- Phricodothyris
- Productus productus
- Pterinopecten
- Sanguinolites
- Streblochondria anisota
- Tylothyris
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.