Ogof Hen Formation
61 distinct taxa, from 105 fossil occurrences the Paleobiology Database records under this name, spanning 477–471 Mya.
Wales · UK
61 taxa · 105 fossils · 477–471 MyaMembers recorded: Bolahaul, Porth Gain Beds, Abercastle Beds, Porth Gain Bed.
Macrostrat dates this rock 487–458 Ma. Macrostrat’s own record
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3 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
- Actinodonta ramseyensis
- Cyrtodonta oboloidea
- Merlinia murchisoniae
- Praearca cambriensis
- Ramseyocrinus cambriensis
- Glyptarca primaeva
- Neseuretus ramseyensis
- Paralenorthis alata
- Praenucula menapiensis
- Saloceras sericeum
- Monorthis menapiae
- Modiolopsis
- Peruniscus ramseyensis
- Polymeres demetarum
- Arenigomya carinata
- Blastoidocrinus antecedens
- Brachiopoda
- Carcassonnella vizcainoi
- Carminodonta crossi
- Castelloceras arennigense
- Catalanispira prima
- Celtoconcha foveata
- Celtopileus calvapex
- Ceratopea moridunensis
- Cleionychia
- Conulariida
- Costulaconus mirificus
- Cyrtodonta staffordae
- Cyrtodonta wattii
- Cyrtodontula hadzeli
- Cystoidea
- Dendroidea
- Eurymya
- Falcatodonta costata
- Fortowensia grandis
- Glyptarca serrata
- Goniophora (Cosmogoniophora) extensa
- Hyolithida
- Hypseloconus
- Mimospira llangynogensis
The 40 most often recorded, of 61.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.