LA h, Las Aguaditas North Section, ~5.5 km west and ~9.5 km south of San José da Jáchal (Ordovician of Argentina)

Where: San Juan, Argentina (30.3° S, 68.8° W: paleocoordinates 34.5° S, 132.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Las Aguaditas Formation, Costonian (458.4 - 457.2 Ma)

• Nemagraptus gracilis zone

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified marl and claystone

• marlstones in slumps (Fig. 2).

Size class: macrofossils

Primary reference: B.D.E. Chatterton, G. D. Edgecombe, N.E. Vaccari and B.G. Waisfeld. 1997. Ontogeny and Relationships of the Ordovician Odontopleurid Trilobite Ceratocara, with New Species from Argentina and New York. Journal of Paleontology 71(1):108-135 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70625: authorized by Pete Wagner, entered by Pete Wagner on 30.03.2007, edited by Sarah Kolbe

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Odontopleurida - Odontopleuridae
Ceratocara argentina
Ceratocara argentina Chatterton et al. 1997 trilobite
 Proetida - Tropidocoryphidae
Stenoblepharum astinil2
Stenoblepharum astinil2 Edgecombe et al. 1997 trilobite
 Phacopida - Cheiruridae
Nieszkowskia sp.3
Nieszkowskia sp.3 Schmidt 1881 trilobite
 Phacopida - Encrinuridae
Lasaguaditas oweni1, "Frencrinuroides edseli" = Encrinuroides edseli1
Lasaguaditas oweni1 Edgecombe et al. 1998 trilobite
"Frencrinuroides edseli" = Encrinuroides edseli1 Edgecombe et al. 1998 trilobite
 Phacopida - Calymenidae
Platycalymene trapezoidalis1
Platycalymene trapezoidalis1 Baldis and Pothe 1995 trilobite
1Edgecombe et al. 1998; 2Edgecombe et al. 1997; 3Edgecombe et al. 1999