Grenola Formation
70 distinct taxa, from 120 fossil occurrences the Paleobiology Database records under this name, spanning 299–290 Mya.
Kansas, Oklahoma · US
70 taxa · 120 fossils · 299–290 MyaFiled under the Council Grove Group. Members recorded: Neva, Burr, Salem Point, Legion.
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14 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
- Composita subtilita
- Crurithyris expansa
- Parajuresania nebrascensis
- Fenestrata
- Fusulinidae
- Linipalus magnispinus
- Linoproductus
- Neochonetes granulifer
- Trepostomata
- Wellerella
- Aviculopecten
- Aviculopecten arctisulcatus
- Chonetes
- Cladodus
- Composita
- Crinoidea
- Meekella
- Neospirifer dunbari
- Orbiculoidea
- Permophorus subcostatus
- Petalodus
- Schizodus wheeleri
- Septimyalina burmai
- Striatites
- Wellerella osagensis
- Acrodus
- Agassizodus
- Agassizodus variabilis
- Allorisma
- Amelacanthus
- Amphiscapha
- Aviculopecten nodocosta
- Aviculopecten occidentalis
- Aviculopinna
- Beecheria bovidens
- Chomatodus
- Ctenacanthus
- Ctenacanthus amblyxiphias
- Delocrinus densus
- Derbyia
The 40 most often recorded, of 70.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.