Viola Springs Formation
26 distinct taxa, from 36 fossil occurrences the Paleobiology Database records under this name, spanning 454–450 Mya.
Oklahoma · US
26 taxa · 36 fossils · 454–450 MyaFiled under the Viola Group. Members recorded: Unit 2, Unit 1, Upper.
Macrostrat places this rock in the Viola Group, and dates it 471–443 Ma. Macrostrat’s own record
Loading coastlines…
7 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
- Lepidocyclus perlamellosa
- Strophomena
- Anataphrus kermiti
- Lepidocyclus oblongus
- Plaesiomys subquadratus
- Rhynchotrema increbescens
- Sowerbyella
- Asaphidae
- Climacograptus typicalis
- Cryptograptus
- Cryptolithoides ulrichi
- Dicellograptus
- Dicranograptus
- Doleroides
- Eochonetes magna
- Hesperorthis
- Hypodicranotus
- Onniella
- Orthograptus
- Orthoretiolites hami
- Paucicrura rogata
- Plaesiomys bellistriatus
- Platystrophia
- Pugilator deckeri
- Rafinesquina
- Trinodus
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.