Also known as ETE Locality 1511, Auca Mahuevo
Where: Neuquén, Argentina (37.9° S, 68.5° W: paleocoordinates 40.8° S, 53.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Anacleto Formation (Neuquén Group), Early/Lower Campanian to Early/Lower Campanian (83.5 - 70.6 Ma)
• ETE dating method: time_unit, ETE age comment: . radiometric intage_max, radiometric intage_min
•two layers close together in middle of section; Río Colorado Subgroup; post-C33R interval
• bed-level stratigraphic resolution
Environment/lithology: crevasse splay; silty, calcareous mudstone and silty sandstone
•"overbank deposits"
•"35 m of pale reddish brown silty sandstone punctuated by several thin gray to greenish gray micaceous sandstones. The base of the local section is dominated by fine to medium grained sandstones and silty sandstones...The fossil embryos are restricted to a 5-m thick interval of pale reddish brown mudstone situated near the middle of the local section." Layer includes caliche.
Size class: macrofossils
Preservation: soft parts
Collection methods: quarrying, surface (in situ), chemical, mechanical,
• ETE reference list: 478. Includes abnormal eggshells.
Primary reference: L. M. Chiappe, R. A. Coria, L. Dingus, F. Jackson, A. Chinsamy and M. Fox. 1998. Sauropod dinosaur embryos from the Late Cretaceous of Patagonia. Nature 396:258-261 [A. Behrensmeyer/A. Behrensmeyer/M. Carrano]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 61458: authorized by Matthew Carrano, entered by Matthew Carrano on 12.06.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
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