El Salado Sur, Agrio Formation, H. neuquensis zone, Neuquén Basin, Neuquén (Cretaceous of Argentina)

Where: Argentina (38.2° S, 70.1° W: paleocoordinates 37.7° S, 33.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Pilmatué Member (Agrio Formation), Early/Lower Hauterivian (136.4 - 130.0 Ma)

• upper part of the lower member (Pilmatué) of the Agrio Formation; Holcoptychites neuquensis zone (H. neuquensis and H. agrioensis subzones)

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified mixed carbonate-siliciclastic sediments

• shoreface to offshore paleoenvironments on a storm-dominated, shallow marine ramp (PBDB coll. 50190)
• more than 150 m thick; intercalated siltstones, shales and bioclastic limestones

Size class: macrofossils

Primary reference: M. B. Aguirre-Urreta and P. F. Rawson. 2003. Lower Cretaceous ammonites from the Neuquén Basin, Argentina: the Hauterivian genus Holcoptychites. Cretaceous Research 24(5):589-613 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61657: authorized by Wolfgang Kiessling, entered by Uta Merkel on 22.06.2006, edited by Franco Aspromonte

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Holcodiscidae
Holcoptychites agrioensis, Holcoptychites magdalenae
Holcoptychites agrioensis Weaver 1931 ammonite
Holcoptychites magdalenae Douvillé 1910 ammonite
Gastropoda
 Epitonioidea - Epitoniidae
Confusiscala sp.
Confusiscala sp. de Boury 1909 wentletrap
CPBA 21800