Round Mountain Silt
98 distinct taxa, from 429 fossil occurrences the Paleobiology Database records under this name, spanning 16–12 Mya.
California · US
98 taxa · 429 fossils · 16–12 MyaMembers recorded: Upper.
Macrostrat dates this rock 15–13 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
- Conus (Chelyconus) owenianus
- Antillophos posunculensis
- Ficus (Trophosycon) kerniana
- Nassarius (Catilon) arnoldi
- Turricula piercei
- Neverita (Glossaulax) andersoni
- Trophon (Austrotrophon) kernensis
- Turricula buwaldana
- Turritella moodyi
- Turritella ocoyana
- Calyptraea filosa
- Mitrella anchuela
- Natica (Naticarius) posuncula
- Neverita (Glossaulax) alta
- Pyramidella (Longchaeus) cooperi
- Terebra (Strioterebrum) stirtoni
- Turricula ochsneri
- Epitonium (Nitidiscala) tedfordi
- Cancellaria (Narona) birchi
- Cylichna temblorensis
- Megasurcula howei
- Natica (Natica) teglandae
- Ophiodermella temblorensis
- Polinices (Euspira) lincolnensis
- Bruclarkia barkeriana
- Crucibulum (Dispotaea) papulum
- Mangelia (Notocytharella) kernensis
- Odostomia (Besla) rotundomontana
- Olivella (Olivella) ischnon
- Sinum scopulosum
- Balcis petrolia
- Cancellaria (Euclia) pacifica
- Crepidula rostralis
- Neverita (Glossaulax) jamesae
- Niso antiselli
- Scalina whitei
- Volvulella gluma
- Balcis lutzi
- Cancellaria (Euclia) circumspinosa
- Cancellaria (Euclia) condoni
The 40 most often recorded, of 98.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.