Lead Bell Shale
106 distinct taxa, from 144 fossil occurrences the Paleobiology Database records under this name, spanning 515–505 Mya.
Utah, Idaho · US
106 taxa · 144 fossils · 515–505 MyaMembers recorded: Spence Tongue, Spence Shale.
Macrostrat dates this rock 509–504 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
- Oryctocephalites reynoldsi
- Amecephalus idahoense
- Athabaskia bithus
- Bythicheilus typicum
- Pentagnostus bonnerensis
- Chancia
- Ctenocystis utahensis
- Elrathina
- Glossopleura gigantea
- Kootenia spencei
- Pentagnostus brighamensis
- Bathyuriscus brighamensis
- Brooksella
- Glossopleura punctatum
- Haplophrentis carinatus
- Ogygopsis typicalis
- Oryctocara geikei
- Selkirkia spencei
- Vauxia magna
- Zacanthoides
- Zacanthoides idahoensis
- Achlysopsis brighamensis
- Achlysopsis punctatum
- Acinocricus stichus
- Acrothele affinis
- Acrotreta definita
- Acrotreta levata
- Alokistocare septum
- Alokistocare spencense
- Alokistocarella spencei
- Amecephalus laticaudum
- Anomalocaris nathorsti
- Archaeocyathus
- Arthropoda
- Athabaskia wasatchensis
- Bathyuriscus (Poliella) anteros
- Bathyuriscus (Poliella) caranus
- Bathyuriscus atossa
- Bathyuriscus wasatchensis
- Brachiopoda
The 40 most often recorded, of 106.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.