PA02Q16 - marine terrace III (Pleistocene of Argentina)

Where: Argentina (44.8° S, 65.6° W: paleocoordinates 44.8° S, 65.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Ionian (0.8 - 0.1 Ma)

• STRATIGRAPHIC RELATIONS: Pleistocene marine terrace deposits. THICKNESS: Unknown thickness. AGE: Middle Pleistocene (400 ka). STRATIGRAPHIC POSITION: Unknown position within terrace deposit.

• bed-level stratigraphic resolution

Environment/lithology: shoreface; poorly lithified, coarse-grained, pebbly, shelly/skeletal sandstone

• ENVIRONMENT: Open ocean, rocky bottom, high energy, euhaline waters. SEQUENCE STRATIGRAPHY: Accumulated from sea level highstand.
• SPECIFIC LITHOLOGY: Coarse sands, shell debris, and pebbles, partially cemented by carbonate. LITHIFICATION: Poorly lithified based on facies description.

Size class: macrofossils

Collection methods: bulk,

• COLLECTORS: Presumably M. L. Aguirre and others (c. 2000's). REPOSITORY: Presumably, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Argentina.

Primary reference: M. L. Aguirre, S. Richiano, and Y. Negro Sirch. 2006. Paleoenvrionments and paleoclimates of the Quaternary molluscan faunas from the coastal area of Bahía Vera-Camarones (Chubut, Patagonia). Palaeogeography, Palaeoclimatology, Palaeoecology 229:251-286 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 71611: authorized by Austin Hendy, entered by Austin Hendy on 01.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropods and bivalvia. Brachiopods, cirripeds, bryozoa and corals not identified to genus level. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and use of subgenus and species-level assignments.
Bivalvia
 Pectinida - Pectinoidae
Pectinidae indet. Wilkes 1810 scallop
 Ostreida - Ostreidae
 Cardiida - Mactridae
Mactra cf. patagonica d'Orbigny 1846 clam
 Cardiida - Veneridae
"Protothaca antiqua" = Ameghinomya antiqua
"Protothaca antiqua" = Ameghinomya antiqua King 1832 venus clam
Gastropoda
 Neogastropoda - Nassariidae
"Buccinanops sp." = Bullia (Buccinanops)
"Buccinanops sp." = Bullia (Buccinanops) snail
Rhynchonellata
 Terebratulida - Terebratulidae