USGS Mesozoic M8601, Bolsa Point (Cretaceous of the United States)

Also known as 89-E-43; UCLA loc. 4348; LACMIP loc. 24348; USGS loc. M8745

Where: San Mateo County, California (37.2° N, 122.4° W: paleocoordinates 43.5° N, 92.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pigeon Point Formation, Middle Campanian (83.5 - 70.6 Ma)

• STRATIGRAPHIC RELATIONS: From Pigeon Point Fm. Lithostratigraphy not discussed here, but can be found in Elder and Saul (1993) and Squires and Saul (2003). AGE: Middle Campanian. STRATIGRAPHIC POSITION: From unknown position within Pigeon Point Fm.

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified sandstone

• ENVIRONMENT: No environmental reported. Presumably shallow-water siliciclastic marine.
• SPECIFIC LITHOLOGY: Sandstone. LITHIFICATION: Poorly-lithified, based on figured specimens.

Size class: macrofossils

Collected by W.P. Elder in 1989; reposited in the UNSM

Collection methods: surface (in situ),

• COLLECTOR: W. P. Elder (1989). REPOSITORY: USGS or USNM.

Primary reference: W. P. Elder and J. W. Miller. 1989. Checklist of Mesozoic macrofossil localities in the Santa Cruz Mountains and vicinity. United States Geological Survey Open-File Report 89-543:1-9 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69314: authorized by Austin Hendy, entered by Austin Hendy on 24.02.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes some gastropoda. Other mollusca mentioned to be present, but not specified. NOMENCLATURE: Authoritative publication, modern nomenclature, with species-level identifications.
Crustacea
  -
Crustacea indet. BrĂ¼nnich 1772
Cephalopoda
 Ammonitida - Baculitidae
Baculites rex Anderson 1958 ammonite
Gastropoda
 Cerithioidea -
Bullamirifica ainiktos2 Dailey and Popenoe 1966 snail
Bivalvia
 Ostreida - Malleidae
Isognomon "n. sp." Lightfoot 1786 oyster
 Arcida - Glycymerididae
Glycymeris (Glycymerita) apletos1 Dailey and Popenoe 1966 clam
"Glycymeris (Glycymeris) cf. banosensis" = Glycymerita banosensis Anderson 1958 clam
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
Mytilus sp. Linnaeus 1758 mussel
 Cardiida - Gastrochaenidae
? Gastrochaena sp. Spengler 1783 clam
 Cardiida - Veneridae
"Calva bowersiana" = Calva (Egelicalva) bowersiana
"Calva bowersiana" = Calva (Egelicalva) bowersiana Cooper 1894 venus clam
 Cardiida - Mactridae
Cymbophora popenoei Saul 1974 clam
Cymbophora triangulata Waring 1917 clam
 Cardiida - Tancrediidae
Meekia (Mygallia) bella Saul and Popenoe 1962 clam
 Carditida - Crassatellidae
? Crassatella sp. Lamarck 1799 clam
 Trigoniida - Megatrigonioidae
Pterotrigonia evansana Meek 1864 clam
 Nuculanida - Nuculanidae
"Nuculana (? Jupiteria) sp." = Jupiteria
"Nuculana (? Jupiteria) sp." = Jupiteria Bellardi 1875 pointed nut clam