Where: San Juan, Argentina (30.3° S, 68.8° W: paleocoordinates 34.2° S, 135.1° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Atavograptus atavus graptolite zone, La Chilca Formation, Rhuddanian (443.4 - 440.8 Ma)
• Age based on fact that beds containing the brachiopods are interbedded with or above beds of Atovograptus atavus Biozone.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; shelly/skeletal sandstone and shale
Size class: macrofossils
Preservation: replaced with silica
Collection methods: Brachiopods studied and listed; other higher taxa simply mentioned; graptolites listed for two of the sections that contain them. See location details.
Primary reference: J. L. Benedetto. 1995. Braquiopodos del Silurica temprano malvinocafrico (Formacion La Chilca), Precordillera Argentina. GĂ©obios 28(4):425-457 [M. Foote/M. Foote/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 185893: authorized by Pete Wagner, entered by Pete Wagner on 23.05.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Homoeospira antiqua n. sp.
Homoeospira antiqua n. sp. | |
Cordatomyonia umangoensis Benedetto 1995 | |
Strophomenata | |
"Aphanomena chilcaensis" = Eostropheodonta chilcaensis
"Aphanomena chilcaensis" = Eostropheodonta chilcaensis Benedetto 1995 | |
Rafinesquina relicua n. sp.
Rafinesquina relicua n. sp. Benedetto 1995 |