Where: Argentina (38.1° S, 70.0° W: paleocoordinates 37.6° S, 33.9° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Lower Member (Agrio Formation), Early/Lower Hauterivian (136.4 - 130.0 Ma)
• Holcoptychites neuquensis zone, Olcostephanus (O.) laticosta subzone
• bed-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified shale
Size class: macrofossils
Primary reference: M. B. Aguirre-Urreta and P. F. Rawson. 2001. Lower Cretaceous ammonites from the Neuquén Basin, Argentina: a Hauterivian Olcostephanus fauna. Cretaceous Research 22(6):763-778 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 61703: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.06.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Olcostephanus (Olcostephanus) boesei, Olcostephanus (Olcostephanus) laticosta, Olcostephanus (Jeannoticeras) agrioensis
Olcostephanus (Olcostephanus) boesei Riedel 1938 ammonite
Olcostephanus (Olcostephanus) laticosta Gerth 1925 ammonite
Olcostephanus (Jeannoticeras) agrioensis Aguirre-Urreta and Rawson 2001 ammonite |