Cardonal Formation,Collection 3 (Ordovician of Argentina)

Where: Argentina (24.3° S, 65.3° W: paleocoordinates 43.6° S, 129.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cardonal Formation, Tremadocian (485.4 - 477.7 Ma)

• Listed as Lower Tremadocian, Cardonal Formation

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy limestone and lithified siltstone

• Quartz sandstone, sandy limestone, sandy shale and siltstone, some samples contain calcareous nodules

Size classes: macrofossils, mesofossils

Collection methods: Conodonts and trilobites only; collection 3, 115m above formation

Primary reference: R. I. Rao and M. F. Tortello. 1998. Tremadoc conodonts and trilobites from the Cardonal Formation, Incamayo Creek, Salta Province, northwestern Argentina. In H. Szaniawski (ed.), Proceedings of the Sixth European Conodont Symposium (ECOS VI)- Paleontologia Polonica 58:31-45 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 156001: authorized by Melanie Hopkins, entered by Melanie Hopkins on 06.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Conodonta
 Panderodontida -
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus sp. Lindstrom 1971 conodont
 Protopanderodontida - Protopanderodontidae
Drepanodus sp. Pander 1856 conodont
Striatodontus sp. Ji and Barnes 1994 conodont
 Protopanderodontida - Oneotodontidae
 Proconodontida - Cordylodontidae
Cordylodus intermedius Furnish 1938 conodont
Cordylodus angulatus Pander 1856 conodont
  - Amphigeisinidae
Artiopoda
 Agnostida - Agnostidae
Trilobita
 Corynexochida - Leiostegiidae
Brackebuschia acheila Harrington and Leanza 1957 trilobite
 Olenida - Olenidae
Leptoplastides argentinensis Kobayashi 1935 trilobite
 Asaphida - Remopleurididae
? Kainellidae sp. Ulrich and Resser 1930 trilobite