Cerro La Chilca Section. CHL4 (Ordovician of Argentina)

Where: San Juan, Argentina (30.6° S, 68.9° W: paleocoordinates 34.9° S, 132.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lenodus pseudoplanus zone, San Juan Formation, Darriwilian (467.3 - 458.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shelly/skeletal, green packstone

• greenish bioclastic packstone

Size class: macrofossils

Primary reference: F. J. Lavié, A. I. Mestre, and M. G. Carrera. 2021. Middle Ordovician linguliformean microbrachiopods from western Argentina: new data and biogeographic implications. Journal of Paleontology [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 219185: authorized by Pete Wagner, entered by Pete Wagner on 28.03.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Protopanderodontida - Drepanoistodontidae
Paroistodus horridus
Paroistodus horridus Barnes and Poplawski 1984 conodont
Lingulata
 Acrotretida - Scaphelasmatidae
Scaphelasma zharykensis
 Acrotretida - Ephippelasmatidae
Numericoma rowelli
 Acrotretida - Acrotretidae
Conotreta andina
 Acrotretida - Eoconulidae
Eoconulus tucunucoensis