Alston Formation
60 distinct taxa, from 66 fossil occurrences the Paleobiology Database records under this name, spanning 340–319 Mya.
England · UK
60 taxa · 66 fossils · 340–319 MyaFiled under the Yoredale Group. Members recorded: Great Limestone, Redesdale, Six Yard Limestone.
Macrostrat places this rock in the Yoredale Group, and dates it 359–323 Ma. Macrostrat’s own record
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6 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
- Anthraconeilo
- Conocardium aliforme
- Conocardium elongatum
- Cypricardella
- Rugosochonetes
- Acharax costellata
- Actinopteria
- Allorisma
- Aulophyllum
- Aviculopecten
- Baylea tabulata
- Caneyella
- Chaenocardiola
- Chaetetes
- Codaster acutus
- Cosmomya
- Diphyphyllum
- Donaldospira pertusa
- Edmondia sulcata
- Euconospira trochiformis
- Fenestella
- Flemingella nysti
- Gigantoproductus giganteus
- Latiproductus
- Leptagonia
- Leptodesma (Leiopteria)
- Limipecten
- Lingularia squamiformis
- Linoproductus
- Lonsdaleia (Actinocyathus)
- Murchisonia (Hypergonia) fastigiata
- Myalina
- Myofossa (Myofossa)
- Nuculopsis
- Oxyprora digitatum
- Palaeolima simplex
- Parallelodon
- Particeps scoticus minimus
- Pernopecten
- Posidonia
The 40 most often recorded, of 60.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.