Allt Ddu Formation
23 distinct taxa, from 49 fossil occurrences the Paleobiology Database records under this name, spanning 458–457 Mya.
Wales · UK
23 taxa · 49 fossils · 458–457 MyaFiled under the Lower Bala Group. Members recorded: Upper.
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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
- Colaptomena expansa prolata
- Reuschella horderleyensis
- Bicuspina
- Broeggerolithus broeggeri
- Dinorthis berwynensis
- Howellites
- Leptaena ventricosa
- Rostricellula
- Brongniartella minor
- Dolerorthis
- Howellites ultimus
- Sowerbyella (Sowerbyella) musculosa
- Strophomena
- Broeggerolithus
- Brongniartella
- Dalmanella
- Flexicalymene (Reacalymene) limba
- Heterorthis retrorsistria
- Kiaeromena (Kiaeromena) harperi
- Kiaeromena (Kiaeromena) kjerulfi
- Lingulella ovata
- Sowerbyella (Sowerbyella) sericea
- Sowerbyella (Sowerbyella) sericea permixta
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.