Crychan Formation
23 distinct taxa, from 60 fossil occurrences the Paleobiology Database records under this name, spanning 443–439 Mya.
Wales · UK
23 taxa · 60 fossils · 443–439 MyaMacrostrat dates this rock 443–433 Ma. Macrostrat’s own record
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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
- Eoplectodonta (Eoplectodonta) duplicata
- Leangella scissa
- Mendacella mullockiensis
- Hindella crassa
- Leptaena (Leptaena) haverfordensis
- Stegerhynchus pusillum
- Stricklandia lens
- Stricklandia lens intermedia
- Hindella angustifrons
- Kozlowskites gracilis
- Skenidioides woodlandiensis
- Visbyella
- Brevilamnulella
- Clorindinae
- Crassitestella reedi
- Dicoelosia osloensis
- Dolerorthis sowerbyiana
- Eopholidostrophia sefinensis
- Meifodia prima
- Palaeoleptostrophia antecedens
- Pionodema
- Stricklandia lens lens
- Triplesia woodlandensis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.