Chico Formation
193 distinct taxa, from 452 fossil occurrences the Paleobiology Database records under this name, spanning 101–66 Mya.
California · US
193 taxa · 452 fossils · 101–66 MyaFiled under the Asuncion Group. Members recorded: Tenmile, Pentz Road, Ten Mile, Musty Buck, Ponderosa Way, Pentz Road (informal), Kingsley Cave.
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16 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
- Baculites chicoensis
- Boggsia tenuis
- Submortoniceras chicoense
- Perissitys brevirostris
- Anchura callosa
- Califadesma elafium
- Biplica obliqua
- Acila (Truncacila) demessa
- Anchura falciformis
- Baculites capensis
- Calva (Egelicalva) buttensis
- Calva (Egelicalva) taffi
- Perissitys elaphia
- Notodonax (Aliodonax) hsui
- Adelodonax tectus
- Canadoceras
- Glycymerita veatchii
- Gyrodes (Sohlella) banites
- Volutoderma averillii
- Yaadia branti
- Canadoceras newberryanum
- Caryocorbula traskii
- Cymbophora stantoni
- Cymbophora suciensis
- Forsia lorda
- Gyrodes (Sohlella) canadensis
- Gyrodes (Sohlella) quercus
- Hauericeras (Gardeniceras) angustum
- Pentzia hilgardi
- Pterotrigonia evansana
- Submortoniceras studleyi
- Acirsa beta
- Astarte tuscana
- Baculites
- Baculites schenki
- Belliscala meta
- Cymbophora ashburnerii
- Cymbophora buttensis
- Deussenia sierrana
- Gaudryceras (Gaudryceras) denmanense
The 40 most often recorded, of 193.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.