San Joaquin Formation
68 distinct taxa, from 117 fossil occurrences the Paleobiology Database records under this name, spanning 5.3–0.0 Mya.
California · US
68 taxa · 117 fossils · 5.3–0.0 MyaMembers recorded: Pecten Zone, Cascajo, Cascajo Conglomerate, just below Pecten Zone, Neverita Zone.
Macrostrat dates this rock 8.3–2.6 Ma. Macrostrat’s own record
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6 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
- Castor californicus
- Anadara trilineata
- Mammalia
- Oppenheimopecten coalingaensis
- Quercus
- Salix
- Astrangia coalingensis
- Dendostrea vespertina
- Equidae
- Equus
- Euspira lewisii
- Glossaulax reclusiana
- Populus
- Balanus
- Calliostoma coalingensis
- Calliostoma kerri
- Calyptraea inornata
- Camelidae
- Chama arcana
- Dallocardia quadragenarium
- Mammutidae
- Merriamaster perrini
- Metacarcinus anthonyi
- Mya (Arenomya) arenaria
- Mytilus (Crenomytilus) coalingensis
- Nassarius (Caesia) coalingensis
- Romaleon antennarium
- Alnus corrallina
- Amorpha
- Cancellaria tritonidea altispira
- Cancer (Metacarcinus) magister
- Cancer fissus
- Cancer yanceyi
- Celtis kansana
- Dendraster
- Equini
- Glycymeris septentrionalis
- Lithocarpus
- Littorina mariana
- Luidia sanjoaquinensis
The 40 most often recorded, of 68.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.