Round Mountain Formation
105 distinct taxa, from 153 fossil occurrences the Paleobiology Database records under this name, spanning 16–14 Mya.
California · US
105 taxa · 153 fossils · 16–14 MyaMembers recorded: Sharktooth Hill Bonebed.
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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
- Antillophos posunculensis
- Cancellaria simplex
- Conus (Chelyconus) owenianus
- Trophon (Austrotrophon) kernensis
- Turritella ocoyana
- Ficus (Trophosycon) kerniana
- Neverita (Glossaulax) andersoni
- Olivella (Olivella) ischnon
- Turricula piercei
- Acteon boulderanus
- Anadara osmonti
- Calyptraea filosa
- Cancellaria (Euclia) condoni
- Cancellaria (Euclia) dalliana
- Crepidula rostralis
- Cylichna temblorensis
- Dentalium pseudonyma
- Eulima gabbiana
- Mangelia (Notocytharella) kernensis
- Megasurcula howei
- Megasurcula keepi
- Mitrella anchuela
- Molopophorus anglonanus
- Nassarius (Catilon) arnoldi
- Nassarius (Phrontis) ocoyanus
- Natica (Naticarius) posuncula
- Neverita (Glossaulax) alta
- Neverita (Glossaulax) jamesae
- Odostomia (Evalea) andersoni
- Pyramidella (Longchaeus) cooperi
- Terebra (Strioterebrum) stirtoni
- Terebra (Terebra) cooperi
- Volvulella gluma
- Allodesmus kernensis
- Anachis (Costoanachis) watsonae
- Balcis conchita
- Batillaria ocoyana
- Bruclarkia barkeriana
- Bruclarkia geniculata
- Bulla cantuaensis
The 40 most often recorded, of 105.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.