Merced Formation
79 distinct taxa, from 118 fossil occurrences the Paleobiology Database records under this name, spanning 72–0.1 Mya.
California, Washington, Oregon · US
79 taxa · 118 fossils · 72–0.1 MyaMacrostrat dates this rock 3.3–0.4 Ma. Macrostrat’s own record
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10 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
- Mactromeris albaria
- Cryptonatica affinis
- Solen sicarius
- Anadara trilineata
- Caesia californiana
- Callianax biplicata
- Mitrella gausapata
- Nassarius (Caesia) grammatus
- Thais (Stramonita) imperialis
- Callianax pedroana
- Cancellaria arnoldi
- Cancer (Metacarcinus) magister
- Clinocardium (Clinocardium) meekianum
- Cryptomya californica
- Leukoma staleyi
- Littorina
- Macoma nasuta
- Mactromeris polynyma
- Neptunea (Sulcosipho) tabulata
- Nucella
- Ophiodermella graciosana
- Panopea generosa
- Spirotropis (Antiplanes) perversa
- Thais trancosana
- Astraea
- Balaenula
- Bittium (Stylidium)
- Caesia
- Caesia fossatus
- Cancellaria
- Cataceramus balticus
- Cetacea
- Clisocolus dubius
- Conchocele bisecta
- Crepidula princeps
- Delphininae
- Enhydra
- Fusitriton oregonensis
- Glossaulax reclusiana
- Glycymerita banosensis
The 40 most often recorded, of 79.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.