C.A.S. Loc. 945, Turtle Bay (Pliocene of Mexico)

Where: Baja California, Mexico (27.7° N, 114.9° W: paleocoordinates 27.4° N, 113.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pliocene (5.3 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: From an unknown lithostratigraphic unit, which unconformably overlies Cretaceous and Miocene strata. AGE: Pliocene. STRATIGRAPHIC POSITION: From unknown position within strata.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, shelly/skeletal sandstone

• SPECIFIC LITHOLOGY: Soft to moderately indurated sandstones, abundantly fossiliferous throughout. LITHIFICATION: Poorly lithified, on the basis of lithologic description.

Size class: macrofossils

Collected by Hanna & Jordan in 1925; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: G.D Hanna and E.K. Jordan, 1925. REPOSITORY: 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 97127: authorized by Austin Hendy, entered by Austin Hendy on 18.07.2010

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.
Maxillopoda
 Sessilia - Balanidae
"Balanus cf. concavus" = Concavus concavus, "Balanus tintinnabulum" = Megabalanus tintinnabulum
"Balanus cf. concavus" = Concavus concavus Bronn 1831 barnacle
"Balanus tintinnabulum" = Megabalanus tintinnabulum Linnaeus 1758 barnacle
SUBSPECIES: Balanus tintinnabulum coccopoma
Bivalvia
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
 Pectinida - Pectinoidae
"Pecten (Lyropecten) subnodosus" = Nodipecten subnodosus, "Pecten (Lyropecten) cerrosensis" = Nodipecten cerrosensis, Pecten (Pecten) lecontei, "Pecten (Amusium) sp." = Amusium, "Pecten (Leptopecten) latiauratus" = Leptopecten latiauratus, "Pecten (Leptopecten) bellilamellatus" = Leptopecten latiauratus, Pecten (Leptopecten) praevalidus n. sp., "Pecten (Plagioctenium) circularis" = Argopecten ventricosus, "Pecten (Plagioctenium) cristobalensis" = Argopecten cristobalensis, "Pecten (Plagioctenium) callidus" = Argopecten callidus, "Pecten (Plagioctenium) invalidus" = Argopecten invalidus, "Pecten (Plagioctenium) hakei" = Argopecten hakei
"Pecten (Lyropecten) subnodosus" = Nodipecten subnodosus Sowerby 1836 scallop
"Pecten (Lyropecten) cerrosensis" = Nodipecten cerrosensis Gabb 1869 scallop
Pecten (Pecten) lecontei Arnold 1906 scallop
"Pecten (Amusium) sp." = Amusium Röding 1798 scallop
"Pecten (Leptopecten) latiauratus" = Leptopecten latiauratus Conrad 1837 scallop
"Pecten (Leptopecten) bellilamellatus" = Leptopecten latiauratus Conrad 1837 scallop
Pecten (Leptopecten) praevalidus n. sp. Jordan and Hertlein 1926 scallop
"Pecten (Plagioctenium) circularis" = Argopecten ventricosus Sowerby 1842 calico scallop
"Pecten (Plagioctenium) cristobalensis" = Argopecten cristobalensis Hertlein 1925 calico scallop
"Pecten (Plagioctenium) callidus" = Argopecten callidus Hertlein 1925 calico scallop
"Pecten (Plagioctenium) invalidus" = Argopecten invalidus Hanna 1924 calico scallop
"Pecten (Plagioctenium) hakei" = Argopecten hakei Hertlein 1925 calico scallop
 Pectinida - Anomiidae
Placunanomia hannibali n. sp. Jordan and Hertlein 1926 scallop
"Anomia peruviana" = Anomia (Anomia) peruviana d'Orbigny 1846 jingle
 Ostreida - Ostreidae
"Ostrea megodon" = Undulostrea megodon, "Ostrea vespertina" = Dendostrea vespertina, Ostrea lurida
"Ostrea megodon" = Undulostrea megodon Hanley 1846 oyster
"Ostrea vespertina" = Dendostrea vespertina Conrad 1854 oyster
Ostrea lurida Carpenter 1864 oyster
 Cardiida - Chamidae
Chama frondosa Broderip 1835 jewel box
 Cardiida - Mactridae
Mactra sp. Linnaeus 1767 clam
 Cardiida - Tellinidae
"Macoma kelseyi" = Macoma nasuta
"Macoma kelseyi" = Macoma nasuta Conrad 1837 tellin clam
 Cardiida - Psammobiidae
Sanguinolaria sp. Lamarck 1799 clam
Gastropoda
 Ptenoglossa - Epitoniidae
Epitonium sp., "Epitonium contrerasi n. sp." = Epitonium (Nitidiscala) contrerasi, "Epitonium cedrosensis n. sp." = Epitonium (Asperiscala) cedrosensis, "Epitonium dallasi n. sp." = Epitonium (Asperiscala) dallasi
Epitonium sp. Bolten 1798 wentletrap
"Epitonium contrerasi n. sp." = Epitonium (Nitidiscala) contrerasi Jordan and Hertlein 1926 wentletrap
"Epitonium cedrosensis n. sp." = Epitonium (Asperiscala) cedrosensis Knight and Hertlein 1926 wentletrap
"Epitonium dallasi n. sp." = Epitonium (Asperiscala) dallasi Jordan and Herltein 1926 wentletrap
 Neogastropoda - Muricidae
Forreria sp. Jousseaume 1880 murex snail
Forreria wrighti n. sp. murex snail
 Naticoidea - Naticidae
Natica sp. Scopoli 1777 moon snail
 Tonnoidea - Ranellidae
Gyrineum sp. Link 1807 triton shell
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell
Echinoidea
 Clypeasteroida - Dendrasteridae