L.S.J.U. Loc. 48, Scammon Lagoon (Pliocene of Mexico)

Where: Baja California, Mexico (27.3° N, 114.3° W: paleocoordinates 27.1° N, 113.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pliocene (5.3 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: From an unknown lithostratigraphic unit, for which lithostratigraphic relationships are not reported. AGE: Pliocene. STRATIGRAPHIC POSITION: From unknown position within strata.

• bed-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

• SPECIFIC LITHOLOGY: Unknown, but presumably siliciclastic. LITHIFICATION: Unknown.

Size class: macrofossils

Collected by Hake; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: B.F. Hake. REPOSITORY: L.S.J.U. (presumably now at C.A.S.)

Primary reference: E. K. Jordan and L. G. Hertlein. 1926. Expedition to the Revillagigedo Islands, Mexico, in 1925, VII. Contribution to the geology and paleontology of the Tertiary of Cedros Island and adjacent parts of Lower California. Proceedings of the California Academy of Sciences 15(14):409-464 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 97129: authorized by Austin Hendy, entered by Austin Hendy on 18.07.2010, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca. NOMENCLATURE: Not an authoritative publication, with antiquated nomenclature, but with species-resolution identification.
Gastropoda
 Neogastropoda - Conidae
Conus aff. regularis Sowerby 1841 cone shell
Bivalvia
 Pectinida - Pectinoidae
"Pecten (Patinopecten) dilleri" = Lituyapecten dilleri, "Pecten (Aequipecten) percarus" = Argopecten percarus, "Pecten (Plagioctenium) cristobalensis" = Argopecten cristobalensis, "Pecten (Plagioctenium) circularis" = Argopecten ventricosus, "Pecten (Pecten) bellus" = Euvola bella, Pecten (Pecten) lecontei, "Pecten (Patinopecten) cf. coosensis" = Pecten coosensis, "Pecten (Leptopecten) bellilamellatus" = Leptopecten latiauratus
"Pecten (Patinopecten) dilleri" = Lituyapecten dilleri Dall 1901 scallop
"Pecten (Aequipecten) percarus" = Argopecten percarus Hertlein 1925 calico scallop
"Pecten (Plagioctenium) cristobalensis" = Argopecten cristobalensis Hertlein 1925 calico scallop
"Pecten (Plagioctenium) circularis" = Argopecten ventricosus Sowerby 1842 calico scallop
"Pecten (Pecten) bellus" = Euvola bella Conrad 1856 scallop
Pecten (Pecten) lecontei Arnold 1906 scallop
"Pecten (Patinopecten) cf. coosensis" = Pecten coosensis Shumard 1858 scallop
"Pecten (Leptopecten) bellilamellatus" = Leptopecten latiauratus Conrad 1837 scallop
 Ostreida - Gryphaeidae
"Ostrea erici" = Pycnodonte erici
"Ostrea erici" = Pycnodonte erici Hertlein 1929 oyster
 Ostreida - Ostreidae
"Ostrea megodon" = Undulostrea megodon, "Ostrea vespertina" = Dendostrea vespertina
"Ostrea megodon" = Undulostrea megodon Hanley 1846 oyster
"Ostrea vespertina" = Dendostrea vespertina Conrad 1855 oyster
Echinoidea
 Clypeasteroida - Dendrasteridae
Dendraster pentagonalis Israelsky 1923 sand dollar