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USGS MR 4522, Marin County, California, USA
Lat/Long (Decimal) | 37.843,-122.552 |
---|---|
Co-ordinates Derivation | estimated from map |
Given Location | California, United States |
Mindat.org Region (for given coordinates) | Marin County, California, USA |
Collections
Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
---|---|---|---|---|---|
USGS MR 4522, Tennessee Valley, Marin Headlands (M-29) | Murchey B. (1984) | Assemblage MH-6: Its range is herein considered to be Hauterivian(?) to Albian(?) although correlation with DSDP material (Schaaf,1981) suggests a more restricted late Barremian or Aptian range from the Crolanium pythia zone. Aptian to Early Albian in Kohnen & Murchey, 1995. | chert | 125 - 109 Ma Early/Lower Cretaceous |
Recorded Fossils
Accepted Name | Hierarchy | Age |
---|---|---|
Zifondium sp. genus | Chromista : Radiozoa : Polycystina : Nassellaria : Archaeodictyomitridae : Zifondium | 125 - 109 Ma Early/Lower Cretaceous |
Holocryptocanium barbui species | Chromista : Radiozoa : Polycystina : Nassellaria : Williriedellidae : Holocryptocanium : Holocryptocanium barbui | 125 - 109 Ma Early/Lower Cretaceous |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!