Bahia Taime [Mancora Tablazo Fm] (Pleistocene of Peru)

Where: Peru (4.3° S, 81.3° W: paleocoordinates 4.5° S, 82.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Mancora Tablazo Formation, Early/Lower Pleistocene (2.6 - 0.8 Ma)

• LITHOSTRATIGRAPHY: From the Mancora Tablazo Fm, which unconformably overlies the Taime Fm, and is unconformably overlain by the Talara Tablazo. AGE: Early Pleistocene, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC RELATIONS: Unclear from what part of the formation the collection is derived, so collection should be considered a composite list for the formation.

• formation-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

• ENVIRONMENT: Beaches, with sorting shallow subtidal settings.
• LITHOLOGY: Mixed siliciclastic facies, including cobbles, gravels, coquina, and chalky sandstones. LITHIFICATION: Unknown.

Size class: macrofossils

Collected by DeVries

Collection methods: surface (in situ),

• COLLECTORS: Presumably T.J. DeVries, c. 1980's. RESPOSITORY: Not stated in text.

Primary reference: T. J. DeVries. 1988. The geology of late Cenozoic marine terraces (tablazos) in northwestern Peru. Journal of South American Earth Sciences 1(2):121-136 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 97649: authorized by Austin Hendy, entered by Austin Hendy on 17.08.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to characteristic Mollusca. NOMENLCATURE: Not an authoritative publication, but with modern nomenclature, and some species-resolution identifications.
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
 Neogastropoda - Melongenidae
Melongena patula Broderip and Sowerby 1829 snail
 Neogastropoda - Conidae
Conus fergusoni Sowerby 1875 cone shell
Conus ximenes Gray 1839 cone shell
 Neogastropoda - Olividae
Olivella volutella Lamarck 1811 olive snail
Oliva incrassata Lightfoot 1786 olive snail
Bivalvia
 Mytilida - Mytilidae
Choromytilus chorus Molina 1782 mussel
 Pectinida - Pectinoidae
Argopecten purpuratus Lamarck 1819 calico scallop
 Ostreida - Ostreidae
"Ostrea megadon" = Undulostrea megodon
"Ostrea megadon" = Undulostrea megodon Hanley 1846 oyster
 Arcida - Arcidae
"Anadara grandis" = Larkinia grandis
"Anadara grandis" = Larkinia grandis Broderip and Sowerby 1829 ark
 Arcida - Glycymerididae
"Glycymeris inaequalis" = Glycymeris (Axinactis) inaequalis
"Glycymeris inaequalis" = Glycymeris (Axinactis) inaequalis Sowerby 1832 clam
 Cardiida - Veneridae
Dosinia ponderosa Gray 1838 venus clam