Salina del Gualicho [Gran Bajo del Gualicho Fm] (Miocene of Argentina)

Where: Argentina (40.4° S, 65.2° W: paleocoordinates 40.8° S, 61.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gran Bajo del Gualicho Formation, Middle Miocene (16.0 - 11.6 Ma)

• LITHOSTRATIGRAPHY: From the Gran Bajo del Gualicho Fm, which overlies the Arroyo Barbudo Fm (Maastrichtian?-Danian), and is overlain by the Puerta del Diablo Fm (Late Miocene-Pliocene). AGE: On the basis of fossil content, Lizuain and Sepilveda (1978) and Lizuain (1983), assigned a Late Eocene-Miocene age to the Gran Bajo del Gualicho Formation, and Sepilveda (1983) further restricted it to the Oligocene and the Middle-Late? Miocene. Camacho (1987) correlated the Gran Bajo del Gualicho For- mation with the "Estratos con Monophoraster y Venericor." These stratawere originally suggested to be of Late Eocene age (Camacho, 1974, 1995), but today are included in the Chenque Formation (Bellosi, 1990), which now is regarded to be of Early Miocene-Middle Miocene age (Barreda and Palamarczuk, 2000). STRATIGRAPHIC POSITION: From the upper part of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified sandstone and poorly lithified, shelly/skeletal sandstone

• ENVIRONMENT: Presumably from shallow-water siliciclastic habitat.
• LITHOLOGY: Sandstones and bioclastic sandstones. LITHIFICATION: Poorly-lithified, on the basis of figured specimens and facies description.

Size class: macrofossils

Collection methods: COLLECTORS: No stated in text, but appear to be from existing historic collections. REPOSITORY: MACN-Pi = Museo Argentino de Ciencias Naturales Bernardino Rivadavia-Buenos Aires, Argentina; MPB = Museo Paleontol6gico de Bariloche, Rio Negro, Argentina.

Primary reference: S. Martinez, V. Reichler, and R. Mooi. 2005. A New Species of Abertella (Echinoidea: Scutellina) from the Gran Bajo del Gualicho Formation (Late Early Miocene-Early Middle Miocene), Río Negro Province, Argentina. Journal of Paleontology 79(6):1229-1233 [A. Hendy/K. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 114642: authorized by Austin Hendy, entered by Katherine Hendy on 18.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxa described in manuscript. Other macrofossils are stated to be present. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Show authors, comments, and common names
Echinoidea
 Clypeasteroida - Abertellidae
Abertella gualichensis n. sp.
Abertella gualichensis n. sp. Martinez et al. 2005 sand dollar