Descon Formation
36 distinct taxa, from 108 fossil occurrences the Paleobiology Database records under this name, spanning 458–433 Mya.
Alaska · US
36 taxa · 108 fossils · 458–433 MyaMembers recorded: Luck Creek Breccia.
Macrostrat dates this rock 487–411 Ma. Macrostrat’s own record
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4 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
- Monograptus
- Orthograptus
- Normalograptus medius
- Dimorphograptus
- Glyptograptus
- Normalograptus rectangularis
- Climacograptus scalaris
- Coronograptus cyphus
- Parakidograptus acuminatus
- Atavograptus atavus
- Climacograptus
- Glyptograptus tamariscus
- Huttagraptus acinaces
- Neodiplograptus modestus
- Normalograptus laciniosus
- Paraclimacograptus innotatus
- Rastrites
- Amblysiphonella
- Diplograptus
- Metaclimacograptus hughesi
- Normalograptus magnus
- Normalograptus trifilis
- Petalolithus
- Sudburigraptus eberleini
- Anazygoidea
- Catazyga
- Corymbospongia
- Corymbospongia adnata
- Girtyocoelia
- Girtyocoelia epiporata
- Glyptograptus incertus
- Korenograptus gnomus
- Maclurites
- Metaclimacograptus undulatus
- Rickardsograptus elongatus
- Tropidodiscus
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.