Pridoli age section of Low Espejos Fm, western Argentina (Silurian of Argentina)

Where: San Juan, Argentina (30.0° S, 69.0° W: paleocoordinates 48.3° S, 126.0° W)

• local area-level geographic resolution

When: Los Espejos Formation, Pridoli (423.0 - 419.2 Ma)

• Formation ranges in age from Wenlock through early Lochkovian; this is strictly from the Pridole aged section; Tucunuco Group

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone and shale

• Midshelf and proximal shelf setting with moderate storm deposition

Preservation: replaced with calcite

Collection methods: bulk, surface (in situ), mechanical,

Primary reference: T. M. Sanchez, B. G. Waisfeld, and B. A. Toro. 1995. Silurian and Devonian molluscan bivalves from precordillera region, western Argentina. Journal of Paleontology 69(5):869-885 [A. Miller/P. Novack-Gottshall/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3524: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalve systematics
Show authors, comments, and common names
Bivalvia
 Modiomorphida - Modiomorphidae
Sphenotomorpha cf. ulrichi
Sphenotomorpha cf. ulrichi clam
"cf. S. ulrichi" - originally entered as "Sphenotomorpha cf. S. ulrichi"
 Ostreida - Pterineidae
Actinopteria modesta
 Nuculanida - Cucullellidae
Nuculites argentinum
 Nuculanida - Nuculanidae
Anthracoleda minuta
Anthracoleda minuta Sanchez et al. 1995 pointed nut clam
Subgenus Pseudoleda
 Nuculanida - Malletiidae
? Palaeoneilo sp.
? Palaeoneilo sp. Hall and Whitfield 1869 clam
originally entered as "Palaeoneilo? sp."
 Solemyida - Ctenodontidae
Praectenodonta alternata